Non-contact method and system for measuring load weight of vehicle, terminal, and medium

Abstract

Disclosed are a non-contact method and system for measuring the load weight of a vehicle, a terminal, and a medium. The method comprises: acquiring a degree of compression of a suspension apparatus between a vehicle frame and an axle, the vehicle frame bearing the load weight of the vehicle, and the vehicle frame being arranged on the axle; on the basis of the degree of compression, obtaining distance change information between the vehicle frame and the axle; and on the basis of the distance change information, determining an amount of change in the load weight of the vehicle, thereby achieving measurement of the load weight of the vehicle. The present invention achieves non-contact measurement of the load weight of a vehicle, greatly prolonging service life while ensuring measurement accuracy, enabling quick mounting and deployment, and resulting in low maintenance costs.

Description

A non-contact measurement method, system, terminal, and medium for measuring the load capacity of a vehicle. Technical Field

[0001] This invention relates to the field of load capacity measurement technology, and in particular to a non-contact method, system, terminal, and medium for measuring the load capacity of a vehicle. Background Technology

[0002] Vehicle load capacity measurement refers to the process of measuring the weight of goods or personnel carried by a vehicle (vehicles are a general term for wheeled, chain-driven, and rail-mounted land transport vehicles). Currently, there are several methods for vehicle load capacity measurement, but all of them have some unresolved problems:

[0003] Strain gauge method: This method involves installing strain gauges on the spring plates of the vehicle suspension and inferring weight changes by sensing the deformation of the spring plates. While this method offers acceptable measurement accuracy, the installation of strain gauges is cumbersome, and the strain gauges are very thin, resulting in a short service life under harsh operating conditions, and the overall cost is high.

[0004] Passive measurement methods, such as tire pressure and tilt measurement, involve inferring weight changes by measuring changes in tire pressure or vehicle tilt. This method is passive, and tire pressure and vehicle tilt are affected by many factors, leading to inaccurate measurements and insufficient precision.

[0005] Therefore, existing technologies still need to be improved and enhanced. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a non-contact measurement method, system, terminal, and medium for the load capacity of a vehicle, addressing the aforementioned deficiencies of the prior art. The technical solution adopted by the present invention is as follows:

[0007] In a first aspect, the present invention provides a non-contact method for measuring the load capacity of a vehicle, wherein the method includes:

[0008] The degree of compression of the suspension device between the vehicle frame and the axle is obtained, wherein the vehicle frame bears the load of the vehicle and is mounted on the axle;

[0009] Based on the degree of compression, information on the change in distance between the vehicle frame and the axle is obtained;

[0010] Based on the distance change information, the change in the vehicle's load capacity is determined, thereby realizing the measurement of the vehicle's load capacity.

[0011] In one implementation, obtaining the degree of compression of the suspension device between the vehicle frame and the axle includes:

[0012] Identify the deformable components in the suspension device;

[0013] Based on a preset sensor, the deformation of the deformable component is detected to obtain the degree of compression of the suspension device.

[0014] In one implementation, the deformable component includes any one of a leaf spring, a spring, and an air suspension assembly.

[0015] In one implementation, detecting the deformation of the deformable component based on a preset sensor to obtain the degree of compression of the suspension device includes:

[0016] Based on sensors fixed to the frame, the deformation of the deformable component is detected to obtain an analog signal;

[0017] The analog signal is processed by analog-to-digital conversion to obtain the compression degree of the suspension device.

[0018] In one implementation, determining the change in the vehicle's load capacity based on the distance change information includes:

[0019] Based on Hooke's Law, a linear functional relationship between the change in elastic force and the change in compression is obtained;

[0020] Based on the distance change information and the linear function relationship, the change in the vehicle's load capacity is obtained.

[0021] In one implementation, obtaining the change in the vehicle's load capacity based on the distance change information and the linear function relationship includes:

[0022] Substituting the distance change information into the linear function relationship, the weight change information is obtained;

[0023] The weight of the vehicle frame is obtained, and based on the weight change information and the weight of the vehicle frame, the change in the load capacity of the vehicle is obtained.

[0024] Secondly, embodiments of the present invention also provide a non-contact measurement system for vehicle load capacity, wherein the system is used to implement the steps of the non-contact measurement method for vehicle load capacity according to any of the above solutions, the system includes: a frame, a suspension device, an axle, a sensor, and a controller, wherein the suspension device is disposed between the frame and the axle, the frame bears the vehicle load capacity, the frame is disposed on the axle, and the sensor is fixed on the frame;

[0025] The controller includes:

[0026] A compression degree acquisition module is used to acquire the compression degree of the suspension device between the vehicle frame and the axle, wherein the vehicle frame bears the load of the vehicle and is mounted on the axle;

[0027] The distance change analysis module is used to obtain distance change information between the vehicle frame and the axle based on the degree of compression.

[0028] The vehicle load capacity analysis module is used to determine the change in the vehicle load capacity based on the distance change information, thereby realizing the measurement of the vehicle load capacity.

[0029] In one implementation, the suspension device includes a deformable component, which includes any one of a leaf spring, a spring, and an air suspension component.

[0030] Thirdly, embodiments of the present invention also provide a terminal, wherein the terminal includes a memory, a processor, and a non-contact measurement program for vehicle load capacity stored in the memory and executable on the processor. When the processor executes the non-contact measurement program for vehicle load capacity, it implements the steps of the non-contact measurement method for vehicle load capacity of any of the above-described solutions.

[0031] Fourthly, embodiments of the present invention also provide a computer-readable storage medium, wherein the computer-readable storage medium stores a non-contact measurement program for the load capacity of a vehicle, and when the non-contact measurement program for the load capacity of a vehicle is executed by a processor, it implements the steps of the non-contact measurement method for the load capacity of a vehicle as described in any of the above schemes.

[0032] Beneficial Effects: Compared with existing technologies, this invention provides a non-contact method for measuring the load capacity of a vehicle. First, the invention obtains the compression degree of the suspension device between the vehicle frame and the axle, where the vehicle frame bears the load capacity. The vehicle frame is mounted on the axle. Then, based on the compression degree, the distance change information between the vehicle frame and the axle is obtained. Next, based on the distance change information, the change in the vehicle load capacity is determined, thus realizing the measurement of the vehicle load capacity. This invention effectively solves the problems of low detection accuracy, cumbersome installation and deployment, short service life, and high maintenance costs of existing methods, and further expands the applicability to different types of vehicles. This invention achieves non-contact measurement of vehicle load capacity, greatly extending service life while ensuring measurement accuracy, with quick installation and deployment and low maintenance costs. Attached Figure Description

[0033] Figure 1 is a flowchart of a preferred embodiment of the non-contact measurement method for vehicle load capacity provided by the present invention.

[0034] Figure 2 is a schematic diagram of the layout of various components in the non-contact measurement method for vehicle load capacity provided in an embodiment of the present invention.

[0035] Figure 3 is a schematic diagram of the layout between the sensor and the spring sheet of the suspension device in the non-contact measurement method of vehicle load capacity provided in the embodiment of the present invention.

[0036] Figure 4 is a schematic diagram illustrating the principle of the non-contact measurement method for vehicle load capacity provided in an embodiment of the present invention.

[0037] Figure 5 is a schematic block diagram of the controller in the non-contact measurement system for vehicle load capacity provided in an embodiment of the present invention.

[0038] Figure 6 is a schematic block diagram of the terminal provided in an embodiment of the present invention. Detailed Implementation

[0039] To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0040] The flowchart shown in the attached diagram is for illustrative purposes only and does not necessarily include all content, operations, or steps, nor does it require execution in the described order. For example, some operations or steps can be broken down, combined, or partially merged, so the actual execution order may change depending on the actual situation.

[0041] It should be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0042] It should be understood that, in order to clearly describe the technical solutions of the embodiments of the present invention, the terms "first" and "second" are used in the embodiments of the present invention to distinguish identical or similar items with essentially the same function and effect. For example, "first control information" and "second control information" are only used to distinguish different control information and do not limit their order.

[0043] Those skilled in the art will understand that the words "first" and "second" do not limit the quantity or the order of execution, and that the words "first" and "second" do not necessarily imply that they are different.

[0044] It should also be understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0045] To address the problems of existing technologies, this embodiment provides a non-contact method for measuring the load capacity of a vehicle. Based on this method, the issues of low detection accuracy, cumbersome installation and deployment, short service life, and high maintenance costs of existing methods are effectively resolved, and the applicability to different types of vehicles is further expanded. In specific application, this embodiment first obtains the degree of compression of the suspension device between the vehicle frame and the axle, where the vehicle frame bears the load capacity, and the vehicle frame is mounted on the axle. Then, based on the degree of compression, the distance change information between the vehicle frame and the axle is obtained. Next, based on the distance change information, the change in the vehicle load capacity is determined, thus realizing the measurement of the vehicle load capacity. This embodiment achieves non-contact measurement of the vehicle load capacity, greatly extending the service life while ensuring measurement accuracy, with quick installation and deployment and low maintenance costs.

[0046] The non-contact measurement method for vehicle load capacity in this embodiment can be applied to vehicle systems or to terminals. The terminal can be a vehicle's in-vehicle terminal or a peripheral terminal connected to the in-vehicle terminal, such as a user's mobile phone terminal. Specifically, as shown in Figure 1, the non-contact measurement method for vehicle load capacity in this embodiment includes the following steps:

[0047] Step S100: Obtain the compression degree of the suspension device between the vehicle frame and the axle. The vehicle frame bears the load of the vehicle and is mounted on the axle.

[0048] The non-contact measurement method for vehicle load capacity in this embodiment is mainly applied to measuring the load on the vehicle frame. Referring to Figure 2, a suspension system is installed between the vehicle frame and the axle. The vehicle frame is mounted on the axle and bears the vehicle's load. Sensors are fixed to the vehicle frame to measure the deformation of the suspension system. In this embodiment, the vehicle frame is a frame structure spanning the front and rear axles of the vehicle, commonly known as a beam, and is the base of the vehicle. It generally consists of two longitudinal beams and several transverse beams, supported on the wheels via the suspension system, front axle, and rear axle. The vehicle frame must have sufficient strength and rigidity to withstand the vehicle's load and the impacts transmitted from the wheels. The function of the vehicle frame is to support and connect the various assemblies of the vehicle, maintaining their relatively correct positions, and bearing various loads from inside and outside the vehicle. The axle (also called the vehicle body) is connected to the vehicle frame (or monocoque chassis) through the suspension system, with wheels mounted at both ends. The axle's function is to bear the vehicle's load and maintain the vehicle's normal operation on the road. The suspension system (also known as the suspension assembly) is a general term for all force-transmitting connection devices between the vehicle frame (or monocoque chassis) and the axle. Its function is to transmit the forces and torques acting between the wheels and the frame, and to buffer the impact forces transmitted from uneven road surfaces to the frame or body, reducing the resulting vibrations. The suspension system incorporates deformable components, including leaf springs, springs, and air suspension assemblies, thus exhibiting different degrees of compression depending on the load on the frame. A sensor is a device capable of measuring the distance from itself to a surface it points to. The sensor is fixed to the frame and measures the distance from the frame to the suspension system or from the frame to the axle, thereby reflecting the degree of compression of the suspension system. In this embodiment, the sensor achieves distance measurement in a non-contact manner. Optional methods include laser ranging, ultrasonic ranging, or eddy current ranging. In practical applications, any one of these methods can be selected; this embodiment is not limited to this.

[0049] In one implementation, this embodiment includes the following steps when determining the degree of compression of the suspension device:

[0050] Step S101: Determine the deformable components in the suspension device;

[0051] Step S102: Based on the sensors fixed on the frame, the deformation of the deformable component is detected to obtain an analog signal;

[0052] Step S103: The analog signal is processed by analog-to-digital conversion by a preset controller to obtain the compression degree of the suspension device.

[0053] This embodiment measures the compression degree of the suspension device using a non-contact method. The suspension device includes deformable components, which can be any one of leaf springs, springs, and air suspension components. Regardless of the type of deformable component used, the suspension device connects the vehicle frame and the axle in a compressible structure. As shown in Figure 3, the sensor is fixed to the vehicle frame and points towards the axle. The surface the sensor points towards could be the axle or a deformable component in the suspension device (such as a leaf spring). Since the suspension device is connected to the axle, the deformable component of the suspension device is considered an extension of the axle.

[0054] In practical applications, as shown in Figure 4, when the load on the vehicle frame changes, the degree of compression of the suspension system changes, meaning the distance between the frame and the axle changes (D in Figure 4 changes). At this time, the sensor can detect the deformation of the suspension system, and the sensor's output signal changes accordingly. The sensor outputs an analog signal (such as voltage). This analog signal is then input to a preset controller, which performs analog-to-digital conversion to obtain a digital signal, thus yielding a specific numerical value. This value reflects the degree of compression of the suspension system.

[0055] Step S200: Based on the degree of compression, obtain the distance change information between the vehicle frame and the axle.

[0056] Since the suspension system connects the vehicle frame and the axle, it exhibits different degrees of compression when the vehicle's load changes: as the load increases, the compression intensifies, reducing the distance between the vehicle frame and the axle; conversely, as the load decreases, the compression lessens, increasing the distance between the vehicle frame and the axle. Therefore, in this embodiment, the change in the suspension system's compression reflects the change in the distance between the vehicle frame and the axle. This distance change information can be stored in the controller for processing and analysis.

[0057] Step S300: Based on the distance change information, determine the change in the vehicle's load capacity, thereby measuring the vehicle's load capacity.

[0058] Since the distance change information between the vehicle frame and the axle in this embodiment is caused by the change in the vehicle's load capacity, the controller in this embodiment can analyze the change in the vehicle's load capacity based on the detected distance change information, thereby realizing non-contact measurement of the vehicle's load capacity.

[0059] In one implementation, this embodiment includes the following steps when determining the change in the load capacity of the vehicle:

[0060] Step S301: Based on Hooke's Law, obtain the linear functional relationship between the change in elastic force and the change in compression.

[0061] Step S302: Substitute the distance change information into the linear function relationship to calculate the weight change information;

[0062] Step S303: Obtain the weight of the vehicle frame, and based on the weight change information and the weight of the vehicle frame, obtain the change in the load capacity of the vehicle.

[0063] According to Hooke's Law, for an ideal spring, within its elastic limit, the change in spring force ΔF and the change in spring length Δx are linearly related, i.e., ΔF = kΔx, denoted as f(Δx) = ΔF, where k is the spring constant. The value of k is the system's input condition, a known condition. For different types of suspension devices, the change in spring force ΔF (i.e., the weight change information between the vehicle's load and the frame's weight) and the change in the degree of compression of the suspension device Δx (i.e., the degree of compression or the change in distance D between the frame and the axle) will follow the aforementioned linear functional relationship f(Δx). Therefore, in this embodiment, after detecting the change in distance between the frame and the axle, this information can be substituted into the linear functional relationship to calculate ΔF, thus obtaining the weight change information between the vehicle's load and the frame's weight. Then, by subtracting the frame's weight from this weight change information, the change in the vehicle's load can be obtained, thus achieving non-contact measurement of the vehicle's load. After calculating the change in the vehicle's load capacity, it can be stored in the controller, which then transmits the change in the vehicle's load capacity to the execution device, such as the host computer.

[0064] In summary, this embodiment first obtains the compression degree of the suspension device between the vehicle frame and the axle, where the vehicle frame bears the load of the vehicle and is mounted on the axle. Then, based on the compression degree, the distance change information between the vehicle frame and the axle is obtained. Next, based on the distance change information, the change in the load of the vehicle is determined, thus realizing the measurement of the load of the vehicle. This embodiment effectively solves the problems of low detection accuracy, cumbersome installation and deployment, short service life, and high maintenance costs of existing methods, and further expands the applicability to different types of vehicles. Furthermore, in this embodiment, the sensor does not contact the measured surface (i.e., the axle), so it is not easily worn or damaged, has a long service life, and low maintenance costs. The sensor only needs to be able to measure the distance change information between the vehicle frame and the axle, so the sensor installation is very simple. The method of distance measurement by the sensor is not limited and can be selected according to the working environment and cost requirements. Various methods such as ultrasonic ranging, laser ranging, and eddy current ranging can be selected, making it widely applicable. Furthermore, the distance change information measured in this embodiment is only related to the vehicle's load capacity and is free from interference factors, theoretically ensuring accurate measurement results. Of course, in other implementations, machine learning methods can be deployed on the controller to accurately measure the linear function relationship of the suspension system, further improving the measurement accuracy of the vehicle's load capacity. The vehicle load capacity measurement method designed in this embodiment is not limited to the type of vehicle or the implementation method of the suspension system; it only requires measuring the distance change information between the vehicle frame and the axle to calculate the vehicle's load capacity, making it widely applicable.

[0065] Based on the above embodiments, the present invention also provides a non-contact measurement system for vehicle load capacity, which is used to implement the steps of the non-contact measurement method for vehicle load capacity described in the above embodiments. Further, the system of this embodiment includes: a frame, a suspension device, an axle, and a sensor, wherein the suspension device is disposed between the frame and the axle, the frame bears the vehicle load capacity, the frame is disposed on the axle, and the sensor is fixed to the frame. The system of this embodiment also includes a controller, which is used to analyze the compression degree of the suspension device, obtain distance change information between the frame and the axle, and determine the change in vehicle load capacity based on the distance change information between the frame and the axle, thereby realizing the measurement of the vehicle load capacity. Specifically, as shown in FIG5, the controller includes: a compression degree acquisition module 10, a distance change analysis module 20, and a vehicle load capacity analysis module 30. Specifically, the compression degree acquisition module 10 is used to acquire the compression degree of the suspension device between the frame and the axle, the frame bears the vehicle load capacity, and the frame is disposed on the axle. The distance change analysis module 20 is used to obtain the distance change information between the vehicle frame and the axle based on the degree of compression. The vehicle load capacity analysis module 30 is used to determine the change in the vehicle load capacity based on the distance change information, thereby realizing the measurement of the vehicle load capacity.

[0066] The working principle of each module in the non-contact measurement system for vehicle load capacity in this embodiment is the same as that of each step in the above method embodiment, and will not be repeated here.

[0067] Each module in the aforementioned non-contact measurement system for the load capacity of the vehicle can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of the terminal in hardware form or independent of it, or stored in the memory of the terminal in software form, so that the processor can call and execute the corresponding operations of each module.

[0068] Based on the above embodiments, the present invention also provides a terminal, the principle block diagram of which is shown in FIG6. The terminal may include one or more processors 100 (only one is shown in FIG6), a memory 101, and a computer program 102 stored in the memory 101 and executable on one or more processors 100, such as a sleep analysis program based on multi-sensor data. When one or more processors 100 execute the computer program 102, they can implement the various steps in the embodiment of the non-contact measurement method for vehicle load capacity. Alternatively, when one or more processors 100 execute the computer program 102, they can implement the functions of each module / unit in the embodiment of the non-contact measurement system for vehicle load capacity, which is not limited here.

[0069] In one embodiment, the processor 100 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0070] In one embodiment, memory 101 may be an internal storage unit of an electronic device, such as a hard drive or RAM. Memory 101 may also be an external storage device of the electronic device, such as a plug-in hard drive, smart media card (SMC), secure digital (SD) card, flash card, etc. Furthermore, memory 101 may include both internal and external storage units. Memory 101 is used to store computer programs and other programs and data required by the terminal. Memory 101 can also be used to temporarily store data that has been output or will be output.

[0071] Those skilled in the art will understand that the principle block diagram shown in Figure 6 is merely a block diagram of a portion of the structure related to the present invention and does not constitute a limitation on the terminal to which the present invention is applied. A specific terminal may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0072] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the methods described above. Any references to memory, storage, operational databases, or other media used in the embodiments provided by this invention can include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual operating data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A non-contact method for measuring the load capacity of a vehicle, characterized in that, The method includes: The degree of compression of the suspension device between the vehicle frame and the axle is obtained, wherein the vehicle frame bears the load of the vehicle and is mounted on the axle; Based on the degree of compression, information on the change in distance between the vehicle frame and the axle is obtained; Based on the distance change information, the change in the vehicle's load capacity is determined, thereby realizing the measurement of the vehicle's load capacity.

2. The non-contact measurement method for the load capacity of a vehicle according to claim 1, characterized in that, The acquisition of the compression degree of the suspension device between the vehicle frame and the axle includes: Identify the deformable components in the suspension device; Based on a preset sensor, the deformation of the deformable component is detected to obtain the degree of compression of the suspension device.

3. The non-contact measurement method for the load capacity of a vehicle according to claim 2, characterized in that, The deformable component includes any one of a spring, a leaf spring, and an air suspension component.

4. The non-contact measurement method for the load capacity of a vehicle according to claim 2, characterized in that, The method of detecting the deformation of the deformable component based on a preset sensor to obtain the degree of compression of the suspension device includes: Based on sensors fixed to the frame, the deformation of the deformable component is detected to obtain an analog signal; The analog signal is processed by analog-to-digital conversion to obtain the compression degree of the suspension device.

5. The non-contact measurement method for the load capacity of a vehicle according to claim 1, characterized in that, Determining the change in the vehicle's load capacity based on the distance change information includes: Based on Hooke's Law, a linear functional relationship between the change in elastic force and the change in compression is obtained; Based on the distance change information and the linear function relationship, the change in the vehicle's load capacity is obtained.

6. The non-contact measurement method for the load capacity of a vehicle according to claim 5, characterized in that, The step of obtaining the change in the vehicle's load capacity based on the distance change information and the linear function relationship includes: Substituting the distance change information into the linear function relationship, the weight change information is obtained; The weight of the vehicle frame is obtained, and based on the weight change information and the weight of the vehicle frame, the change in the load capacity of the vehicle is obtained.

7. A non-contact measurement system for the load capacity of a vehicle, characterized in that, The system is used to implement the steps of the non-contact measurement method for the load capacity of a vehicle according to any one of claims 1-6. The system includes: a frame, a suspension device, an axle, a sensor, and a controller, wherein the suspension device is disposed between the frame and the axle, the frame bears the load capacity of the vehicle, the frame is disposed on the axle, and the sensor is fixed on the frame. The controller includes: A compression degree acquisition module is used to acquire the compression degree of the suspension device between the vehicle frame and the axle, wherein the vehicle frame bears the load of the vehicle and is mounted on the axle; The distance change analysis module is used to obtain distance change information between the vehicle frame and the axle based on the degree of compression. The vehicle load capacity analysis module is used to determine the change in the vehicle load capacity based on the distance change information, thereby realizing the measurement of the vehicle load capacity.

8. The non-contact measurement system for vehicle load capacity according to claim 7, characterized in that, The suspension device includes a deformable component, which includes any one of a leaf spring, a spring, and an air suspension component.

9. A terminal, characterized in that, The terminal includes a memory, a processor, and a non-contact measurement program for vehicle load capacity stored in the memory and executable on the processor. When the processor executes the non-contact measurement program for vehicle load capacity, it implements the steps of the non-contact measurement method for vehicle load capacity as described in any one of claims 1-6.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a non-contact measurement program for the load capacity of a vehicle, which, when executed by a processor, implements the steps of the non-contact measurement method for the load capacity of a vehicle as described in any one of claims 1-6.

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