Vehicle centering guidance system and method

Abstract

The application relates to the technical field of vehicles, in particular to a vehicle centering guiding system and method, which comprises a detection platform body, a plurality of bearing devices arranged on the tabletop of the detection platform body, the plurality of bearing devices being used for bearing a vehicle to be detected, a collection component used for collecting a wheel distance signal of the vehicle to be detected and obtaining an actual wheel distance according to the wheel distance signal, and an identification component used for calculating a wheel lateral offset of the vehicle to be detected based on the actual wheel distance, a preset basic distance and a preset yellow line spacing, and generating a centering reminding information according to the wheel lateral offset so as to perform centering reminding through the centering reminding information. Thus, the problems of low centering method precision and efficiency, lack of real-time feedback and high safety risk in the related art are solved, the centering precision and efficiency can be significantly improved, the safety protection capability can be enhanced, and the overall automation level can be improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a vehicle centering guidance system and method. Background Technology

[0002] Currently, abnormal noise testing benches are the core equipment for detecting abnormal noise problems in components such as the vehicle chassis, suspension, and transmission system.

[0003] In related technologies, the abnormal noise detection bench only has a load-bearing tray and a basic platform structure. The entire process of the vehicle driving into the bench and accurately positioning its four wheels in the center of the tray is completed manually by the driver.

[0004] However, in related technologies, the manual operation method relies solely on the driver's visual observation to determine the wheel positions, making it difficult to achieve precise alignment of the four wheels with the center of the pallet. Alignment of a single vehicle typically requires two workers, involving 3-5 repositionings and directional adjustments, with each alignment taking 10-15 minutes, resulting in low overall inspection efficiency. Furthermore, the vehicle's repeated and blind adjustments within the test bench area can easily exceed safe driving boundaries, leading to bench scrapes, tire jams, and other problems. Additionally, the need for personnel to guide and direct the operation poses risks of equipment damage and personnel safety. Moreover, vehicle adjustments rely entirely on the driver's experience, making it difficult for beginners to operate and hindering standardized and regulated operations, all of which urgently need to be addressed. Summary of the Invention

[0005] This application provides a vehicle centering guidance system and method to solve the problems of low accuracy and efficiency, lack of real-time feedback, and high safety risks in related vehicle centering methods. It can significantly improve centering accuracy and efficiency, enhance safety protection capabilities, and improve the overall level of automation.

[0006] The first aspect of this application provides a vehicle centering guidance system, including: The testing platform itself; Multiple support devices are installed on the platform of the testing platform body, and the multiple support devices are used to support the vehicle to be tested; The acquisition component is used to acquire the wheel distance signal of the vehicle under test and obtain the actual wheel distance based on the wheel distance signal; The identification component is used to calculate the lateral wheel offset of the vehicle to be detected based on the actual wheel distance, the preset base distance, and the preset yellow line spacing, and to generate centering reminder information based on the lateral wheel offset, so as to provide centering reminder information.

[0007] Optionally, in some embodiments, the vehicle centering guidance system further includes: The display component is used to display the four-wheel offset status and / or alignment reminder information of the vehicle under test.

[0008] Optionally, in some embodiments, the acquisition component includes: The first and second acquisition units are located on the first side of the detection platform body; The third and fourth acquisition units are located on the second side of the detection platform body; The first side and the second side of the detection platform body are perpendicular to each other.

[0009] Optionally, in some embodiments, the vehicle centering guidance system further includes: The first set of boundary lines includes a first boundary line and a second boundary line that are parallel to each other. The second set of boundary lines includes the third and fourth boundary lines, which are parallel to each other.

[0010] Optionally, in some embodiments, the vehicle centering guidance system further includes: Guidance signs are used to guide the direction of travel for vehicles to be inspected.

[0011] A second aspect of this application provides a vehicle centering guidance method, comprising the following steps: Collect the wheel distance signal of the vehicle to be tested, and obtain the actual wheel distance based on the wheel distance signal; Based on the actual wheel distance, the preset base distance, and the preset yellow line spacing, calculate the lateral wheel offset of the vehicle to be detected; Alignment reminders are generated based on the lateral offset of the wheels, and alignment reminders are provided through these reminders.

[0012] Optionally, in some embodiments, the lateral offset of the wheel is: ; in, This represents the lateral offset of the wheel. This is the actual wheel distance; The preset base distance; This is the preset spacing for the yellow lines.

[0013] Optionally, in some embodiments, obtaining the actual wheel distance based on the wheel distance signal includes: The wheel distance signal is processed by analog-to-digital conversion to obtain the initial actual wheel distance, and then filtered to obtain the actual wheel distance.

[0014] Optionally, in some embodiments, alignment reminder information is generated based on the lateral offset of the wheels, including: Determine whether the lateral offset of the wheel is less than or equal to the preset offset; If the lateral offset of the wheel is less than or equal to the preset offset, the generated centering reminder message indicates that the centering is normal, and the centering reminder message is displayed in green.

[0015] Optionally, in some embodiments, after determining whether the lateral offset of the wheel is less than or equal to a preset offset, the method further includes: If the lateral offset of the wheel is greater than the preset offset, the generated centering reminder message will indicate that the vehicle is veering off course and will display the lateral offset of the wheel, and the centering reminder message will be displayed in red.

[0016] Therefore, the embodiments of this application have at least the following beneficial effects: (1) Improve centering accuracy: The laser ranging unit collects wheel lateral offset data with a detection accuracy of ≤1mm to ensure that the wheel falls accurately on the center tray and ensures that the abnormal noise detection data is true and reliable.

[0017] (2) Improve centering efficiency: One person can operate it and the centering can be completed in one vehicle. The centering time can be shortened to less than 30 seconds.

[0018] (3) Intuitive and standardized operation: The wheel status is displayed intuitively in green or red on the screen (green = qualified, red = veering off course). The driver only needs to adjust the steering wheel according to the prompts and can operate without experience. The screen size can be 21 inches.

[0019] (4) Enhance safety: Yellow boundary lines define driving lanes and monitor the risk of crossing the boundary in real time to prevent accidents such as vehicle scratches, tire jams, and personnel collisions from the source.

[0020] (5) Improve automation: Data collection, calculation, judgment and display are completed automatically without human intervention, reducing labor intensity.

[0021] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of a vehicle centering guidance system according to an embodiment of this application; Figure 2 This is a schematic diagram of a vehicle centering guidance system according to an embodiment of this application; Figure 3 This is a circuit diagram illustrating a vehicle centering guidance system according to an embodiment of this application. Figure 4This is a flowchart of a vehicle centering guidance method according to an embodiment of this application; Figure 5 This is a flowchart of a vehicle centering guidance method provided according to an embodiment of this application. Detailed Implementation

[0023] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0024] The vehicle centering guidance system and method of this application are described below with reference to the accompanying drawings. Addressing the problems of low accuracy and efficiency, lack of real-time feedback, and high safety risks in the vehicle centering methods mentioned in the background, this application provides a vehicle centering guidance system. This system uses multiple support devices mounted on the platform of the detection platform to support the vehicle to be detected. A data acquisition component collects the wheel distance signals of the vehicle to be detected to obtain the actual wheel distance. A recognition component calculates the lateral wheel offset of the vehicle to be detected based on the actual wheel distance, a preset base distance, and a preset yellow line spacing, thereby generating centering reminder information for centering guidance. This solves the problems of low accuracy and efficiency, lack of real-time feedback, and high safety risks in the vehicle centering methods of the related art, significantly improving centering accuracy and efficiency, enhancing safety protection capabilities, and improving the overall level of automation.

[0025] Specifically, Figure 1 This is a schematic diagram of the vehicle centering guidance system provided in an embodiment of this application.

[0026] like Figure 1 As shown, the vehicle centering guidance system 10 includes: a detection platform body 100, multiple carrier devices 200, a data acquisition component 300, and an identification component 400.

[0027] The system includes: a detection platform body 100; multiple support devices 200 mounted on the platform surface of the detection platform body 100 for supporting the vehicle to be detected; a data acquisition component 300 for acquiring wheel distance signals of the vehicle to be detected and obtaining the actual wheel distance based on the wheel distance signals; and a recognition component 400 for calculating the lateral wheel offset of the vehicle to be detected based on the actual wheel distance, a preset base distance, and a preset yellow line spacing, and generating alignment reminder information based on the lateral wheel offset information to provide alignment reminders.

[0028] In some embodiments, the acquisition component 300 includes: a first acquisition unit and a second acquisition unit disposed on a first side of the detection platform body 100; a third acquisition unit and a fourth acquisition unit disposed on a second side of the detection platform body 100; wherein the first side and the second side of the detection platform body 100 are perpendicular to each other.

[0029] Among them, the wheel distance signal is the distance electrical signal collected and transmitted by the sensor; the preset base distance and the preset yellow line spacing can be distances preset by the user, which can be distances obtained through a limited number of experiments or distances obtained through a limited number of computer simulations, and are not specifically limited here; the wheel lateral offset is the difference between the actual distance and the preset base distance.

[0030] Specifically, the detection platform body 100 in this embodiment can be a steel platform approximately 6000mm long and 3000mm wide, with a non-slip patterned steel plate surface, fixed to the ground of the detection station to provide a stable load-bearing foundation for the entire vehicle. Meanwhile, the multiple load-bearing devices 200 in this embodiment can be four central trays (i.e., square load-bearing trays) with non-slip textured surfaces, used to support the four wheels of the vehicle and ensure uniform force distribution during detection. Furthermore, the acquisition component 300 in this embodiment can be four sets of laser ranging units, respectively located on the first side (i.e., the right side, corresponding to the front of the tray side) and the second side (i.e., the front side, near the edge of the platform) of the detection platform body 100. Each set of laser ranging units can be a cuboid structure with a top laser emitter, which emits laser light horizontally to detect wheel distance signals (i.e., the distance between the tire sidewall and the laser head) in real time.

[0031] It should be understood that, in addition to the laser ranging unit mentioned above, the acquisition component 300 of this application can also be an ultrasonic sensor, an infrared sensor, or a vision camera, all of which can realize wheel position detection. The acquisition component 300 can be installed on the top, side, or other positions of the detection platform body 100, as long as it can achieve the same function.

[0032] Therefore, this embodiment of the application can achieve non-contact real-time detection of four-wheel lateral deviation through left and right partitioned laser ranging units, and intuitively prompt the driver to adjust the direction through a green / red dual-color display screen, realizing standardized operation without experience. Furthermore, the platform integrates a yellow boundary line + center tray dual positioning structure, combined with a closed-loop control algorithm to achieve high-precision centering, thus completing a fully automatic "collection-calculation-judgment-display" process, continuously monitoring until all four wheels are qualified. This solves the problems of uncontrollable centering accuracy, low work efficiency, significant safety risks, lack of intuitive feedback mechanism, and lack of automated and visualized precise centering guidance mechanism in related technologies, improving the efficiency and reliability of abnormal noise identification.

[0033] Furthermore, to enable those skilled in the art to better understand how the vehicle centering guidance system of this application displays the centering results, the following description is provided in conjunction with specific embodiments.

[0034] Optionally, in some embodiments, the vehicle centering guidance system 10 further includes a display component 500 for displaying the four-wheel offset status of the vehicle to be detected and / or centering reminder information.

[0035] Specifically, such as Figure 2 As shown, Figure 2 This is a schematic diagram of a vehicle centering guidance system according to an embodiment of this application. The vehicle centering guidance system 10 of this embodiment also includes a display component 500, which can be a 21-inch industrial display screen. It is fixed to the front of the detection platform body 100 by a bracket, facing the direction of vehicle entry, and is used to display the four-wheel offset status of the vehicle to be detected and / or centering reminder information in real time.

[0036] It should be understood that, in addition to the 21-inch industrial display screen, the display component 500 of this application can also be a combination of indicator light group and digital tube. When the indicator light group is green, it indicates that it is qualified. When the indicator light group is red, it indicates that it is off track. At the same time, the offset value is displayed through the digital tube.

[0037] For example, if the right front wheel offset is greater than the preset baseline distance, the judgment is deemed unqualified. The corresponding wheel is highlighted in red on the interface, the specific offset difference is displayed, and the driver is prompted to turn the steering wheel slightly to the right to correct it. If the left rear wheel offset is greater than the preset baseline distance, the judgment is deemed unqualified. A red warning is displayed and the driver is prompted to turn the steering wheel slightly to the right to guide the vehicle to quickly return to the correct position.

[0038] Furthermore, to enable those skilled in the art to better understand how the vehicle centering guidance system of this application ensures that the vehicle travels within a predetermined trajectory range, the following description is provided in conjunction with specific embodiments.

[0039] Optionally, in some embodiments, the vehicle centering guidance system 10 further includes: a first set of boundary lines, which includes a first boundary line and a second boundary line that are parallel to each other; and a second set of boundary lines, which includes a third boundary line and a fourth boundary line that are parallel to each other.

[0040] Specifically, the vehicle centering guidance system 10 in this application embodiment also includes a first set of boundary lines and a second set of boundary lines. The boundary lines can be two parallel yellow dashed lines set along the length direction of the detection platform body 100 to define the safe driving channel of the vehicle and prevent the vehicle from deviating.

[0041] Furthermore, to enable those skilled in the art to better understand how the vehicle centering guidance system of this application ensures that the vehicle travels in a predetermined direction, the following description is provided in conjunction with specific embodiments.

[0042] Optionally, in some embodiments, the vehicle centering guidance system 10 further includes: a guidance marker for guiding the direction of travel of the vehicle to be detected.

[0043] Specifically, the vehicle centering guidance system 10 in this application embodiment also includes a guidance sign, which can be a red arrow, located at the front end of the detection platform body 100, to indicate the standard direction in which the vehicle drives into the detection platform body 100 from the outside to the inside.

[0044] Therefore, this application embodiment can propose an overall structure for laser centering guidance on an abnormal noise test bench, and based on a wheel offset calculation method and real-time control process using laser ranging, a vehicle centering display interface with green / red dual-color status indication on the display screen and control logic, to build a fully automatic centering system with laser detection + automatic judgment + visual prompts. This system can achieve rapid and high-precision automatic alignment of the four wheels of the vehicle, eliminate manual assistance and repeated vehicle relocation and adjustment, shorten centering time, eliminate on-site safety hazards and equipment scratch risks, and achieve a standardized and efficient abnormal noise detection test bench operation process.

[0045] Furthermore, to enable those skilled in the art to better understand the vehicle centering guidance system of this application, the following description is provided in conjunction with specific embodiments.

[0046] Specifically, this application uses the abnormal noise detection of a compact sedan as an example to illustrate the vehicle centering guidance system of this application. In this embodiment, parameters such as the yellow boundary line spacing, center tray wheelbase, and offset threshold D0 are pre-set. After the system is powered on, it automatically completes initialization and collects the reference distance L0, and the display screen enters the standby interface. Subsequently, the driver slowly drives the vehicle onto the testing platform along the indicated arrows. The initial offset state of the vehicle's four wheels is: left front wheel offset 3mm, right front wheel offset 2mm, left rear wheel offset 0mm, and right rear wheel offset 6mm. The system then... The system performs offset detection. According to the judgment rules, if the offset of the left front, right front, and left rear wheels does not exceed 5mm (i.e., ΔD≤5mm), it is displayed as green and in normal condition. If the offset of the right rear wheel is greater than 5mm (i.e., ΔD>5mm), it is displayed as red and prompts "2cm to the right". After the driver slightly adjusts the steering wheel to the left according to the warning information on the interface, the offset of the right rear wheel is reduced to 3mm. Finally, all four wheels are displayed as green, and the system judges that the vehicle is aligned correctly. The whole process takes 26 seconds. The deviation between the wheel center and the tray center is no more than 2mm, which meets the requirements for subsequent vehicle abnormal noise detection.

[0047] Therefore, the embodiments of this application can realize real-time monitoring of the four-wheel position, quantitative display of offset data, and visual prompts of the operating status during the vehicle's entry process. Based on preset threshold judgment and guidance adjustment, the vehicle can be automatically and accurately aligned, effectively ensuring the vehicle's alignment accuracy and meeting the needs of subsequent abnormal noise detection conditions.

[0048] Furthermore, to enable those skilled in the art to better understand the vehicle centering guidance system of this application, the following is combined with... Figure 3 and Figure 4 Specific embodiments will be described below.

[0049] Figure 3 This is a circuit diagram illustrating the principle of a vehicle centering guidance system provided in one embodiment of this application.

[0050] like Figure 3 As shown, the circuit principle of the vehicle centering guidance system includes the following steps: S301, Begin.

[0051] S302, Laser Displacement Sensor: VCC, GND, OUT.

[0052] S303, power supply circuit: 24V input → LM2596 → 5V (sensor).

[0053] S304, filter circuit: OUT → ferrite bead FB → parallel 0.1μF capacitor to GND.

[0054] S305, main control chip: STM32F407. FSMC interface: connects to LCD_Connector for high-speed display transmission; LCD_Connector is directly connected to the FSMC bus (corresponding to the display interface); USART pin → MAX3232 → RS232 communication expansion; power supply pins: 3.3V & GND, with 0.1μF / 10μF decoupling capacitors.

[0055] S306, PA0 / ADC_IN0: Acquires the filtered analog distance signal.

[0056] S307, Determine if the ADC conversion is complete? If it is complete, proceed to step S308; otherwise, proceed to step S311.

[0057] S308, Data Processing and Offset Determination.

[0058] S309, Result Output: If qualified: display normal; if unqualified: trigger resampling or indicate an error.

[0059] S310, End.

[0060] S311, waiting for ADC to be ready.

[0061] Specifically, taking the left front wheel unit of a vehicle as an example, the circuit architecture of the vehicle centering guidance system designed in this application embodiment mainly includes: a laser displacement sensor, a power supply circuit, a filtering circuit, a main control chip, and a display interface. The laser displacement sensor is equipped with a VCC power supply pin, a GND ground pin, and an OUT signal output pin, capable of emitting a laser and outputting an analog distance signal. The power supply circuit receives an external 24V DC power supply, which is stepped down to 5V and 3.3V respectively through an LM2596 voltage regulator chip. The 5V power supply powers the laser displacement sensor, and the 3.3V power supply powers the main control chip, thus achieving a graded and stable power supply. The filtering circuit connects a ferrite bead (FB) in series at the OUT signal output terminal of the sensor to suppress high-frequency electromagnetic interference, and connects a 0.1μF capacitor in parallel to GND after the ferrite bead to filter out signal noise and ensure signal integrity. The system prioritizes the purity of the distance signal. The main control chip is an STM32F407, whose PA0 pin (ADC_IN0) receives the filtered analog distance signal and performs analog-to-digital conversion. The FSMC interface pin connects to the LCD connector to transmit display data. The USART pin connects to the MAX3232 chip for RS232 serial communication expansion. The power supply pin is connected to a 3.3V power supply and GND, with 0.1μF and 10μF decoupling capacitors in parallel to suppress signal interference caused by voltage fluctuations. The display interface uses an LCD_Connector to directly connect to the MCU FSMC bus, enabling high-speed data transmission and ensuring real-time updates of the human-machine interface. Besides the STM32F407, the main control chip can also be an Arduino, DSP, or PLC, all capable of signal acquisition and logic operations.

[0062] Furthermore, Figure 4 This is a flowchart of a vehicle centering guidance method according to an embodiment of this application; like Figure 4 As shown, the vehicle centering guidance method includes the following steps: S401, Begin.

[0063] S402, System Initialization: MCU configures hardware parameters and reads the preset offset threshold D0 (e.g., 5mm).

[0064] S403, Reference Acquisition: In the vehicle-free state, the laser unit detects the reference distance L0, which is used as the zero point for calculation.

[0065] S404, Real-time Measurement: After the vehicle enters, the laser unit continuously collects the wheel distance signal, which is then converted and filtered by the ADC to obtain Lx.

[0066] S405, Offset Calculation: Calculate the lateral offset of the wheel according to the formula △D=|Lx-L0-W / 2| (W is the distance between the yellow lines).

[0067] S406, State judgment: △D≤D0? If yes, proceed to step S407; otherwise, proceed to step S411.

[0068] S407, marked in green (qualified).

[0069] S408, Interface Refresh: Display terminal updates four wheel statuses in real time.

[0070] S409, Complete the judgment: Are all four rounds qualified? If yes, proceed to step S410; otherwise, proceed to step S404.

[0071] S410, End.

[0072] S411, marked in red (deviation), displays the offset value.

[0073] The vehicle alignment guidance system proposed in this application can support the vehicle to be inspected via multiple support devices mounted on the platform of the detection platform body. A data acquisition component collects the wheel distance signals of the vehicle to be inspected to obtain the actual wheel distance. A recognition component calculates the lateral wheel offset of the vehicle to be inspected based on the actual wheel distance, a preset base distance, and a preset yellow line spacing, thereby generating alignment reminder information for alignment guidance. This solves the problems of low accuracy and efficiency, lack of real-time feedback, and high safety risks in related vehicle alignment methods, significantly improving alignment accuracy and efficiency, enhancing safety protection capabilities, and increasing the overall level of automation.

[0074] Next, the vehicle centering guidance method proposed in the embodiments of this application is described with reference to the accompanying drawings.

[0075] Figure 5 This is a flowchart of a vehicle centering guidance method proposed in an embodiment of this application.

[0076] like Figure 5 As shown, the vehicle centering guidance method includes the following steps: In step S501, the wheel distance signal of the vehicle to be detected is acquired, and the actual wheel distance is obtained based on the wheel distance signal.

[0077] In step S502, the lateral offset of the wheels of the vehicle to be detected is calculated based on the actual wheel distance, the preset base distance, and the preset yellow line spacing.

[0078] In step S503, alignment reminder information is generated based on the lateral offset of the wheel to provide alignment reminders.

[0079] Optionally, in some embodiments, the lateral offset of the wheel is: ; in, This represents the lateral offset of the wheel. This is the actual wheel distance; The preset base distance; This is the preset spacing for the yellow lines.

[0080] Optionally, in some embodiments, obtaining the actual wheel distance based on the wheel distance signal includes: The wheel distance signal is processed by analog-to-digital conversion to obtain the initial actual wheel distance, and then filtered to obtain the actual wheel distance.

[0081] Optionally, in some embodiments, alignment reminder information is generated based on the lateral offset of the wheels, including: Determine whether the lateral offset of the wheel is less than or equal to the preset offset; If the lateral offset of the wheel is less than or equal to the preset offset, the generated centering reminder message indicates that the centering is normal, and the centering reminder message is displayed in green.

[0082] Optionally, in some embodiments, after determining whether the lateral offset of the wheel is less than or equal to a preset offset, the method further includes: If the lateral offset of the wheel is greater than the preset offset, the generated centering reminder message will indicate that the vehicle is veering off course and will display the lateral offset of the wheel, and the centering reminder message will be displayed in red.

[0083] It should be noted that the foregoing explanation of the vehicle centering guidance device embodiment also applies to the vehicle centering guidance method of this embodiment, and will not be repeated here.

[0084] The vehicle alignment guidance method proposed in this application can support the vehicle to be inspected using multiple support devices mounted on the platform of the detection platform body. A data acquisition component collects the wheel distance signals of the vehicle to be inspected to obtain the actual wheel distance. A recognition component calculates the lateral wheel offset of the vehicle to be inspected based on the actual wheel distance, a preset base distance, and a preset yellow line spacing, thereby generating alignment reminder information for alignment guidance. This solves the problems of low accuracy and efficiency, lack of real-time feedback, and high safety risks in related vehicle alignment methods, significantly improving alignment accuracy and efficiency, enhancing safety protection capabilities, and improving the overall level of automation.

[0085] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0086] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0087] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0088] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0089] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

Claims

1. A vehicle centering guidance system, characterized in that, include: The testing platform itself; Multiple support devices are installed on the platform of the testing platform body, and the multiple support devices are used to support the vehicle to be tested; The acquisition component is used to acquire the wheel distance signal of the vehicle to be detected and to obtain the actual wheel distance based on the wheel distance signal; The identification component is used to calculate the lateral wheel offset of the vehicle to be detected based on the actual wheel distance, the preset base distance, and the preset yellow line spacing, and to generate centering reminder information based on the lateral wheel offset, so as to provide centering reminder through the centering reminder information.

2. The system according to claim 1, characterized in that, Also includes: A display component is used to display the four-wheel offset status of the vehicle under test and / or the alignment reminder information.

3. The system according to claim 1 or 2, characterized in that, The acquisition component includes: The first acquisition unit and the second acquisition unit are disposed on the first side of the detection platform body; The third and fourth acquisition units are located on the second side of the detection platform body; The first side and the second side of the detection platform body are perpendicular to each other.

4. The system according to claim 3, characterized in that, Also includes: The first set of boundary lines includes a first boundary line and a second boundary line that are parallel to each other. The second set of boundary lines includes a third and a fourth set of boundary lines that are parallel to each other.

5. The system according to claim 4, characterized in that, Also includes: Guiding signs are used to guide the direction of travel of the vehicle to be tested.

6. A vehicle centering guidance method, characterized in that, The method is applied to a vehicle centering guidance system as described in any one of claims 1-5, wherein the method includes the following steps: Collect the wheel distance signal of the vehicle to be detected, and obtain the actual wheel distance based on the wheel distance signal; Based on the actual wheel distance, the preset base distance, and the preset yellow line spacing, the lateral wheel offset of the vehicle to be detected is calculated. Centering reminder information is generated based on the lateral offset of the wheels, and centering reminder information is used to provide centering reminders.

7. The method according to claim 6, characterized in that, The lateral offset of the wheel is: ； in, This represents the lateral offset of the wheel. The actual wheel distance; The preset base distance; The preset yellow line spacing is used.

8. The method according to claim 6, characterized in that, The step of obtaining the actual wheel distance based on the wheel distance signal includes: The wheel distance signal is processed by analog-to-digital conversion to obtain the initial actual wheel distance, and the initial actual wheel distance is then filtered to obtain the actual wheel distance.

9. The method according to claim 6, characterized in that, The step of generating alignment reminder information based on the lateral offset of the wheel includes: Determine whether the lateral offset of the wheel is less than or equal to a preset offset; If the lateral offset of the wheel is less than or equal to the preset offset, the generated centering reminder message indicates normal centering, and the centering reminder message is displayed in green.

10. The method according to claim 9, characterized in that, After determining whether the lateral offset of the wheel is less than or equal to a preset offset, the method further includes: If the lateral offset of the wheel is greater than the preset offset, the generated centering reminder message will indicate that the vehicle body is veering off course and will display the lateral offset of the wheel, and the centering reminder message will be displayed in red.

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