A method, system, device and electronic equipment for monitoring the health of a trailer hitch

Abstract

The application provides a trailer hook health monitoring method, system, device and electronic equipment, and relates to the technical field of vehicle monitoring. The method comprises the following steps: when a towing device is detected to be assembled in place, in response to a towing start signal, it is judged whether the towing acceleration is greater than or equal to a towing acceleration threshold value and / or whether the towing force is greater than or equal to a towing force threshold value; when the towing acceleration is greater than or equal to the towing acceleration threshold value and / or the towing force is greater than or equal to the towing force threshold value, preset warning information is generated, so as to monitor the towing device and prevent damage caused by improper use.

Description

Technical Field

[0001] This application relates to the field of vehicle monitoring technology, and more specifically, to a method, system, device, and electronic device for monitoring the health of trailer hitches. Background Technology

[0002] A towing device is a safety connection device designed specifically for emergency rescue and vehicle towing scenarios. It typically includes a front tow hook and a rear tow hook, providing a stable towing point for the rescue vehicle when the vehicle breaks down, is involved in an accident, or gets stuck, enabling safe and stable towing operations and avoiding damage to the vehicle's chassis or suspension system.

[0003] The towing device and surrounding vehicle body structure need to be strong enough to ensure that the vehicle can successfully escape from a very large external force. Although various working conditions during vehicle use have been considered as much as possible during the vehicle design process, owners often encounter various problems due to improper use of the tow hook, such as tow hook breakage, plastic deformation, the removal of the anti-collision beam, tearing or plastic deformation of the vehicle body structure. Summary of the Invention

[0004] The problem addressed in this application is how to monitor traction devices and prevent damage caused by improper use.

[0005] To address the aforementioned issues, this application provides a method, system, device, and electronic device for monitoring the health of trailer hooks.

[0006] Firstly, this application provides a method for monitoring the health of a trailer hitch, including: When the traction device is detected to be in place, in response to the towing start signal, it is determined whether the towing acceleration is greater than or equal to the towing acceleration threshold, and / or, whether the towing force is greater than or equal to the towing force threshold. A preset warning message is generated when the drag acceleration is greater than or equal to the drag acceleration threshold, and / or the drag force is greater than or equal to the drag force threshold.

[0007] Optionally, generating a preset warning message when the drag acceleration is greater than or equal to the drag acceleration threshold, and / or the drag force is greater than or equal to the drag force threshold includes: A first warning message is generated when the drag acceleration is greater than or equal to a first acceleration threshold and / or the drag force is greater than or equal to a first drag force threshold. A second warning message is generated when the drag acceleration is greater than or equal to a second acceleration threshold and / or the drag force is greater than or equal to a second drag force threshold. The preset warning message includes the first warning message and the second warning message. The drag acceleration threshold includes the first acceleration threshold and the second acceleration threshold. The drag force threshold includes the first drag force threshold and the second drag force threshold. The second acceleration threshold is greater than the first acceleration threshold, and the second drag force threshold is greater than the first drag force threshold.

[0008] Optionally, before determining whether the drag acceleration is greater than or equal to a drag acceleration threshold, and / or determining whether the drag force is greater than or equal to a drag force threshold, the method further includes: The acceleration threshold that the traction device can withstand is taken as the second acceleration threshold, and the drag force threshold that the traction device can withstand is taken as the second drag force threshold. The second acceleration threshold at a first preset ratio is used as the first acceleration threshold, and the second drag force threshold at a second preset ratio is used as the first drag force threshold.

[0009] Optionally, the step of determining whether the drag acceleration is greater than or equal to a drag acceleration threshold in response to the drag start signal, and / or determining whether the drag force is greater than or equal to a drag force threshold, includes: Within a first preset time period after the start time, it is determined whether the drag acceleration is greater than or equal to the drag acceleration threshold; after the first preset time period after the start time, it is determined whether the drag force is greater than or equal to the drag force threshold, wherein the trigger time of the drag start signal is taken as the start time.

[0010] Optionally, generating a preset warning message when the drag acceleration is greater than or equal to the drag acceleration threshold, and / or the drag force is greater than or equal to the drag force threshold includes: When the corresponding component value of the drag acceleration or the drag force in the vehicle coordinate system is greater than or equal to the corresponding limit value on the first threshold surface, the first warning message is generated, wherein the first threshold surface is constructed by the first acceleration threshold and / or the first drag force threshold. The second warning message is generated when the corresponding component value of the drag acceleration or the drag force in the vehicle coordinate system is greater than or equal to the corresponding limit value on the second threshold surface.

[0011] Optionally, the trailer hitch health monitoring method further includes: In response to the assembly signal of the traction device, the screw-in length of the traction device is detected; When the screw-in length is greater than or equal to the preset length, the traction device is determined to be assembled in place; When the screw-in length is less than the preset length, it is determined that the traction device is not properly assembled, and an assembly reminder is generated.

[0012] Optionally, the trailer hitch health monitoring method further includes: After the traction device is assembled in place, a working condition prompt is generated, which includes visual and / or auditory prompts.

[0013] Optionally, the trailer hitch health monitoring method further includes: Store the drag acceleration and / or drag force generated by dragging.

[0014] Secondly, this application provides a trailer hitch health monitoring system, including sensors and a processor; The sensor is used to detect the drag-start signal, as well as the drag acceleration and / or drag force; The processor is configured to respond to the drag-and-drop start signal by determining whether the drag acceleration is greater than or equal to a drag acceleration threshold, and / or determining whether the drag force is greater than or equal to a drag force threshold. When the drag acceleration is greater than or equal to the drag acceleration threshold, and / or the drag force is greater than or equal to the drag force threshold, a preset warning message is generated.

[0015] Thirdly, this application provides a trailer hitch health monitoring device, comprising: The monitoring and judgment module is used to detect when the traction device is assembled in place, and in response to the towing start signal, determine whether the towing acceleration is greater than or equal to the towing acceleration threshold, and / or determine whether the towing force is greater than or equal to the towing force threshold. The warning module is used to generate a preset warning message when the drag acceleration is greater than or equal to the drag acceleration threshold, and / or the drag force is greater than or equal to the drag force threshold.

[0016] Fourthly, this application provides an electronic device, including a memory and a processor; The memory is used to store computer programs; The processor is configured to implement the trailer hook health monitoring method as described in the first aspect when executing the computer program.

[0017] The beneficial effects of the trailer hitch health monitoring method of this application are: Once the trailer hitch is properly assembled and towing is initiated, its operating condition is monitored. Real-time monitoring of towing parameters ensures that the towing parameters do not exceed the equipment's tolerance range. This continuous monitoring of the operating status during towing prevents equipment overload damage due to improper use. By monitoring towing acceleration and / or towing force thresholds, abnormal dynamic changes during towing are identified, providing real-time feedback to operators and preventing mechanical damage or safety accidents caused by excessive acceleration or towing force, thus achieving proactive safety monitoring during towing. Attached Figure Description

[0018] Figure 1 This is a flowchart illustrating the trailer hitch health monitoring method according to an embodiment of this application. Figure 2 This is a flowchart of the trailer hitch health monitoring method according to an embodiment of this application; Figure 3 This is an example diagram of an electronic device according to an embodiment of this application. Detailed Implementation

[0019] To make the above-mentioned objects, features, and advantages of this application more apparent and understandable, specific embodiments of this application are described in detail below with reference to the accompanying drawings. Although some embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this application. It should be understood that the accompanying drawings and embodiments of this application are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0020] It should be understood that the steps described in the method embodiments of this application may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this application is not limited in this respect.

[0021] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the description below. It should be noted that the concepts of "first," "second," etc., mentioned in this application are used only to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0022] It should be noted that the terms "one" and "more" used in this application are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0023] The names of messages or information exchanged between multiple devices in the embodiments of this application are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0024] like Figure 1 and Figure 2 As shown in the embodiment of this application, a method for monitoring the health of a trailer hitch includes: In step S100, when the traction device is detected to be assembled in place, in response to the towing start signal, it is determined whether the towing acceleration is greater than or equal to the towing acceleration threshold, and / or, it is determined whether the towing force is greater than or equal to the towing force threshold.

[0025] In some embodiments, a traction device assembly signal is generated by a sensor installed at the connection point of the traction device. When the traction device and its mounting base reach the correct mechanical connection state, it indicates that the traction device is assembled in place. For example, the state in which the latches between the traction device and the mounting base are fully engaged, the bolts are tightened to the specified torque, and the locating pins are fully inserted is considered to be the assembled state.

[0026] This checks whether the traction device is properly assembled to avoid safety hazards caused by incomplete assembly. It also prevents the traction device from being used in an incompletely assembled state, ensuring the reliability of equipment operation.

[0027] The towing operation is monitored by parameters such as towing force, towing speed, and towing acceleration to prevent the towing parameters from exceeding the equipment's tolerance range. Pre-set critical values ​​are used to determine the critical thresholds for parameters such as towing force, towing speed, and towing acceleration based on the load-bearing capacity of the traction device, the weight characteristics of the towed object, and the operating environment.

[0028] When the corresponding data exceeds the preset threshold, protective measures such as deceleration and stopping can be taken in a timely manner to avoid overload damage to the traction device. The monitoring of the traction device's assembly status and towing operation conditions is combined to form a dual monitoring mechanism. By setting preset thresholds, monitoring standards can be adjusted according to different operational needs and different types of traction devices, effectively improving the safety and reliability of towing operations.

[0029] Step S200: When the drag acceleration is greater than or equal to the drag acceleration threshold, and / or the drag force is greater than or equal to the drag force threshold, a preset warning message is generated.

[0030] Dragging acceleration represents the change in velocity of the traction device or the dragged object per unit time during the dragging process. Dragging force represents the traction force exerted on the traction device or the dragged object during the dragging process.

[0031] The drag acceleration threshold and the preset drag force threshold represent the pre-set critical values ​​of drag acceleration and drag force. The drag acceleration threshold and the preset drag force threshold are determined based on the structural strength of the traction device, the inertial characteristics of the towed object, and the operational safety requirements.

[0032] The preset warning message indicates a prompt message generated when the drag acceleration reaches or exceeds a threshold. The dragging condition refers to the overall working parameters during the dragging operation, including physical quantities characterizing the dragging state such as drag acceleration, drag force, and drag speed. Preset warning messages promptly generate alerts for abnormal changes during the dragging process, providing real-time feedback to operators. Through the correlation settings of acceleration thresholds, drag force thresholds, and warning messages, proactive monitoring of the dragging process is achieved.

[0033] In this embodiment, after the assembly signal is triggered, the assembly status is determined to identify the integrity of the traction device installation and avoid potential safety hazards caused by incomplete assembly. Once the assembly is in place, operational monitoring is performed to monitor whether the dragging parameters exceed the equipment's tolerance range in real time. This continuous monitoring of the operating status during dragging prevents equipment overload damage due to improper use. Threshold monitoring identifies abnormal dynamic changes during dragging, providing real-time feedback to operators and preventing mechanical damage or safety accidents caused by excessive acceleration or dragging force, thus achieving proactive safety monitoring of the dragging process.

[0034] Optionally, generating a preset warning message when the drag acceleration is greater than or equal to the drag acceleration threshold, and / or the drag force is greater than or equal to the drag force threshold includes: A first warning message is generated when the drag acceleration is greater than or equal to a first acceleration threshold and / or the drag force is greater than or equal to a first drag force threshold. A second warning message is generated when the drag acceleration is greater than or equal to a second acceleration threshold and / or the drag force is greater than or equal to a second drag force threshold. The preset warning message includes the first warning message and the second warning message. The drag acceleration threshold includes the first acceleration threshold and the second acceleration threshold. The drag force threshold includes the first drag force threshold and the second drag force threshold. The second acceleration threshold is greater than the first acceleration threshold, and the second drag force threshold is greater than the first drag force threshold.

[0035] In one embodiment, the first acceleration threshold and the first drag force threshold represent primary critical values ​​for drag acceleration and drag force, corresponding to the levels of acceleration and drag force that require attention during towing operations. The second acceleration threshold represents a higher-level critical value for drag acceleration and drag force, which is higher than the first acceleration / draft force threshold. This threshold indicates the drag acceleration and drag force at which immediate stopping is required during towing operations, as exceeding this value may damage the traction device.

[0036] A first warning message is generated when the drag acceleration and / or drag force reaches a first acceleration / drag force threshold to alert the operator that the drag acceleration is approaching a safe boundary. A second warning message is generated when the drag acceleration and / or drag force reaches a second acceleration / drag force threshold to warn the operator that the drag acceleration will exceed the safe range and the dragging strategy needs to be adjusted immediately.

[0037] In actual operation, sufficient reaction time for operators needs to be considered. Therefore, a first-level threshold and a second-level threshold are set. The second-level threshold is the critical value at which cracks or unacceptable plastic deformation occur in the towing device or surrounding vehicle body structure, weld points, or weld seams. By setting a tiered first and second threshold, progressive safety prompts are provided, enabling operators to take appropriate measures according to the warning level. The first warning message provides operators with an early warning time to adjust towing parameters in a timely manner; the second warning message provides operators with an emergency alert, prompting immediate protective measures. For example, the first warning message can be set as a voice and yellow warning prompt, and the second warning message can be set as a voice and red warning prompt to distinguish the urgency and visibility of the two.

[0038] Optionally, before determining whether the drag acceleration is greater than or equal to a drag acceleration threshold, and / or determining whether the drag force is greater than or equal to a drag force threshold, the method further includes: The acceleration threshold that the traction device can withstand is taken as the second acceleration threshold, and the drag force threshold that the traction device can withstand is taken as the second drag force threshold. The second acceleration threshold at a first preset ratio is used as the first acceleration threshold, and the second drag force threshold at a second preset ratio is used as the first drag force threshold.

[0039] In one embodiment, the acceleration threshold and traction force threshold that the traction device can withstand are the maximum safe acceleration values ​​determined during the structural design of the traction device, which are used as the second acceleration threshold and the second traction force threshold to reflect the load limit that the traction device can withstand under normal operating conditions. The first preset ratio and the second preset ratio are pre-set numerical coefficients used to calculate the proportional relationship between the first acceleration / traction force threshold and the second acceleration / traction force threshold.

[0040] Before determining the critical threshold, acceleration and traction thresholds are first set. The acceleration and traction thresholds that the traction device can withstand are directly set as the second acceleration and traction thresholds, ensuring that the second-level thresholds match the actual load-bearing capacity of the traction device. Multiplying a preset ratio by the thresholds the traction device can withstand yields the first acceleration and first traction thresholds. By setting the preset ratio, an early warning can be provided before the traction device reaches its ultimate load-bearing capacity, allowing operators time to adjust.

[0041] For example, the first preset ratio and the second preset ratio can be set to 90%, leaving a 10% adjustment margin. In other embodiments, the first preset ratio and the second preset ratio can be determined separately according to actual needs.

[0042] Optionally, the step of determining whether the drag acceleration is greater than or equal to a drag acceleration threshold in response to the drag start signal, and / or determining whether the drag force is greater than or equal to a drag force threshold, includes: Within a first preset time period after the start time, it is determined whether the drag acceleration is greater than or equal to the drag acceleration threshold; after the first preset time period after the start time, it is determined whether the drag force is greater than or equal to the drag force threshold, wherein the trigger time of the drag start signal is taken as the start time.

[0043] In one embodiment, since damage to the traction device often occurs at the moment of startup, i.e., within a short period after startup, excessive instantaneous acceleration can lead to damage. Therefore, during the first preset time period after startup, the drag acceleration is primarily monitored, and it is determined whether the drag acceleration is greater than or equal to a drag acceleration threshold. This stage corresponds to the instantaneous moment when the vehicle is just started being towed. At this time, the tow rope usually has slack. If the towing vehicle suddenly accelerates, the towed vehicle will experience a large instantaneous acceleration due to inertia, which can easily cause impact damage to the traction device or connecting structure. Therefore, by setting an acceleration threshold and making a judgment within the initial time period, mechanical damage caused by excessive startup can be effectively identified and avoided.

[0044] After the first preset time has elapsed, the traction process enters a relatively stable phase. At this point, the tow rope is taut, and the main force transmitted between the two vehicles is continuous traction. During this phase, the judgment criterion switches to drag force, specifically whether the current drag force is greater than or equal to a preset drag force threshold. This design is suitable for scenarios requiring prolonged application of significant traction force, such as off-road rescue and getting out of difficult situations. By monitoring the drag force, it can promptly issue warnings or take protective measures when the traction load exceeds a safe range.

[0045] The initial preset duration can be determined based on the actual usage scenario of the traction system. The tow rope typically has a certain amount of slack, requiring a short period after vehicle start-up for the rope to fully tighten. The initial preset duration is generally set between 0.5 and 3 seconds. The specific value can be adjusted based on the tow rope length, material elasticity coefficient, and vehicle weight.

[0046] For light vehicles or short-distance towing scenarios, where the slack in the towing rope is small, the first preset duration can be set to 0.5 to 1 second. For heavy vehicles or long-distance towing scenarios, where the slack in the towing rope is large, the first preset duration can be appropriately extended to 1 to 3 seconds.

[0047] Optionally, generating a preset warning message when the drag acceleration is greater than or equal to the drag acceleration threshold, and / or the drag force is greater than or equal to the drag force threshold includes: When the corresponding component value of the drag acceleration or the drag force in the vehicle coordinate system is greater than or equal to the corresponding limit value on the first threshold surface, the first warning message is generated, wherein the first threshold surface is constructed by the first acceleration threshold and / or the first drag force threshold. The second warning message is generated when the corresponding component value of the drag acceleration or the drag force in the vehicle coordinate system is greater than or equal to the corresponding limit value on the second threshold surface.

[0048] In one embodiment, a three-dimensional spatial reference system established with the vehicle as the reference is used as the vehicle coordinate system. For example, the vehicle coordinate system is established with the front and rear directions of the vehicle as the X-axis, the left and right directions of the vehicle as the Y-axis, and the ground and top directions of the vehicle as the Z-axis.

[0049] The component values ​​represent the projected values ​​of the drag acceleration in each direction of the vehicle coordinate system, reflecting the magnitude of the drag acceleration in a specific direction. The surface boundary represents a closed geometric surface constructed in three-dimensional space by acceleration thresholds and traction force thresholds, respectively. For example, since the limit values ​​of the traction device differ in different directions, through pre-calibration, the limit values ​​of instantaneous acceleration and traction force that the traction device can experience at different angles are calibrated, forming a geometric surface in three-dimensional space.

[0050] A first warning message is generated when any component of the drag acceleration and / or drag force reaches or exceeds the surface boundary constructed by a first acceleration threshold. A second warning message is generated when any component of the drag acceleration and / or drag force reaches or exceeds the surface boundary constructed by a second acceleration threshold.

[0051] The system spatially decomposes drag acceleration and drag force using the vehicle coordinate system, converting threshold values ​​into surface boundaries in three-dimensional space. A first warning message is triggered when the components of drag acceleration and drag force in any direction are greater than or equal to a first threshold surface constructed from a first acceleration threshold and a first drag force threshold. A second warning message is triggered when the component of drag acceleration in any direction is greater than or equal to a second threshold surface constructed from a second acceleration threshold and a second drag force threshold. This system comprehensively monitors the distribution of drag acceleration and drag force in three-dimensional space, avoiding omissions that may occur due to single-direction judgment. By judging threshold components in the vehicle coordinate system, it achieves all-round monitoring of spatial distribution. It can promptly identify abnormal drag data in any direction and trigger corresponding warning messages, improving the safety monitoring capabilities of towing operations.

[0052] Optionally, the trailer hitch health monitoring method further includes: In response to the assembly signal of the traction device, the screw-in length of the traction device is detected; When the screw-in length is greater than or equal to the preset length, the traction device is determined to be assembled in place; When the screw-in length is less than the preset length, it is determined that the traction device is not properly assembled, and an assembly reminder is generated.

[0053] In one embodiment, the actual screw-in depth between the traction device and the connecting component represents the screw-in length of the traction device, reflecting the installation status of the traction device. A preset minimum safe screw-in depth value is used as the preset length, which corresponds to the minimum installation requirement for the traction device to function normally.

[0054] When the measured screw-in length reaches or exceeds the preset length, the towing device is determined to be correctly installed. When the measured screw-in length does not reach the preset length, the towing device is determined to be incompletely installed, and an assembly reminder signal is generated. For example, a text alarm message is displayed on the vehicle's central control screen, and a voice reminder is given through the speaker, until the tow hook is properly assembled.

[0055] Optionally, such as Figure 2 As shown, the trailer hitch health monitoring method further includes: After the traction device is assembled in place, a working condition prompt is generated, which includes visual and / or auditory prompts.

[0056] In one embodiment, after the trailer hitch is in place, the central control screen generates operating status prompts, such as suggested vehicle speed and acceleration prompts, to assist the driver in operation through visual and / or auditory prompts. For example, the central control screen displays text reminders while simultaneously broadcasting voice reminders, indicating that excessive starting speed may cause vehicle damage, and prompting the driver to manually confirm and turn off the reminder to ensure that the driver receives the reminder information.

[0057] Optionally, the trailer hitch health monitoring method further includes: Store the drag acceleration and / or drag force generated by dragging.

[0058] In one embodiment, in response to a vehicle stop signal, the towing operation is determined to end. The operation between the towing start signal and the vehicle stop signal is considered as one towing operation. All data in this process is stored, and the stored data may include information reflecting the working status of the traction device, such as towing acceleration, duration of action, and force changes.

[0059] This application provides a trailer hitch health monitoring system, including sensors and a processor; The sensor is used to detect the drag-start signal, as well as the drag acceleration and / or drag force; The processor is configured to respond to the drag-and-drop start signal by determining whether the drag acceleration is greater than or equal to a drag acceleration threshold, and / or determining whether the drag force is greater than or equal to a drag force threshold. When the drag acceleration is greater than or equal to the drag acceleration threshold, and / or the drag force is greater than or equal to the drag force threshold, a preset warning message is generated.

[0060] This application provides a trailer hitch health monitoring device, comprising: The monitoring and judgment module is used to detect when the traction device is assembled in place, and in response to the towing start signal, determine whether the towing acceleration is greater than or equal to the towing acceleration threshold, and / or determine whether the towing force is greater than or equal to the towing force threshold. The warning module is used to generate a preset warning message when the drag acceleration is greater than or equal to the drag acceleration threshold, and / or the drag force is greater than or equal to the drag force threshold.

[0061] like Figure 3 As shown in the embodiment of this application, an electronic device 300 includes a memory 310 and a processor 320; the memory 310 is used to store a computer program; the processor 320 is used to implement the trailer hook health monitoring method as described above when the computer program is executed.

[0062] Alternatively, an electronic device 300 includes a memory 310 and a processor 320 coupled to the memory 310; the memory 310 is configured to store a computer program; and the processor 320 is configured to perform the following operations when the computer program is executed: If the traction device is assembled in place, in response to the towing start signal, it determines whether the towing acceleration is greater than or equal to the towing acceleration threshold, and / or determines whether the towing force is greater than or equal to the towing force threshold. A preset warning message is generated when the drag acceleration is greater than or equal to the drag acceleration threshold, and / or the drag force is greater than or equal to the drag force threshold.

[0063] This application provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the trailer hook health monitoring method described above.

[0064] Alternatively, a non-volatile computer-readable storage medium storing a computer program that, when executed by a processor, causes the processor to perform the following operations: If the traction device is assembled in place, in response to the towing start signal, it determines whether the towing acceleration is greater than or equal to the towing acceleration threshold, and / or determines whether the towing force is greater than or equal to the towing force threshold. A preset warning message is generated when the drag acceleration is greater than or equal to the drag acceleration threshold, and / or the drag force is greater than or equal to the drag force threshold.

[0065] Electronic device 300, which can serve as a server or client in this application, is described below as an example of hardware devices that can be applied to various aspects of this application. Electronic device 300 is intended to represent various forms of digital electronic computer devices, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. Electronic device 300 can also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the application described and / or claimed herein.

[0066] Electronic device 300 includes a computing unit that can perform various appropriate actions and processes based on a computer program stored in read-only memory (ROM) or a computer program loaded from a storage unit into random access memory (RAM). The RAM may also store various programs and data required for device operation. The computing unit, ROM, and RAM are interconnected via a bus. Input / output (I / O) interfaces are also connected to the bus.

[0067] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc. In this application, the units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of the embodiments of this application according to actual needs. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units can be implemented in hardware or as software functional units.

[0068] Although the above disclosure is provided, the scope of protection of this application is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this application, and all such changes and modifications will fall within the scope of protection of this application.

Claims

1. A method for monitoring the health of a trailer hitch, characterized in that, include: When the traction device is detected to be in place, in response to the towing start signal, it is determined whether the towing acceleration is greater than or equal to the towing acceleration threshold, and / or, whether the towing force is greater than or equal to the towing force threshold. A preset warning message is generated when the drag acceleration is greater than or equal to the drag acceleration threshold, and / or the drag force is greater than or equal to the drag force threshold.

2. The method for monitoring the health of trailer hooks according to claim 1, characterized in that, The provision that generates a preset warning message when the drag acceleration is greater than or equal to the drag acceleration threshold, and / or the drag force is greater than or equal to the drag force threshold, includes: A first warning message is generated when the drag acceleration is greater than or equal to a first acceleration threshold and / or the drag force is greater than or equal to a first drag force threshold. A second warning message is generated when the drag acceleration is greater than or equal to a second acceleration threshold and / or the drag force is greater than or equal to a second drag force threshold. The preset warning message includes the first warning message and the second warning message. The drag acceleration threshold includes the first acceleration threshold and the second acceleration threshold. The drag force threshold includes the first drag force threshold and the second drag force threshold. The second acceleration threshold is greater than the first acceleration threshold, and the second drag force threshold is greater than the first drag force threshold.

3. The method for monitoring the health of trailer hooks according to claim 2, characterized in that, Before determining whether the drag acceleration is greater than or equal to a drag acceleration threshold, and / or determining whether the drag force is greater than or equal to a drag force threshold, the method further includes: The acceleration threshold that the traction device can withstand is taken as the second acceleration threshold, and the drag force threshold that the traction device can withstand is taken as the second drag force threshold. The second acceleration threshold at a first preset ratio is used as the first acceleration threshold, and the second drag force threshold at a second preset ratio is used as the first drag force threshold.

4. The method for monitoring the health of trailer hooks according to claim 1, characterized in that, The step of determining whether the drag acceleration is greater than or equal to a drag acceleration threshold in response to the drag start signal, and / or determining whether the drag force is greater than or equal to a drag force threshold, includes: Within a first preset time after the start time, it is determined whether the drag acceleration is greater than or equal to the drag acceleration threshold. After the first preset time following the start time, it is determined whether the drag force is greater than or equal to the drag force threshold, wherein the trigger time of the drag start signal is taken as the start time.

5. The method for monitoring the health of trailer hooks according to claim 1, characterized in that, The provision that generates a preset warning message when the drag acceleration is greater than or equal to the drag acceleration threshold, and / or the drag force is greater than or equal to the drag force threshold, includes: When the corresponding component value of the drag acceleration or the drag force in the vehicle coordinate system is greater than or equal to the corresponding limit value on the first threshold surface, the first warning message is generated, wherein the first threshold surface is constructed by the first acceleration threshold and / or the first drag force threshold. When the corresponding component value of the drag acceleration or the drag force in the vehicle coordinate system is greater than or equal to the corresponding limit value on the second threshold surface, the second warning message is generated, wherein the second threshold surface is constructed by the second acceleration threshold and / or the second drag force threshold, the second acceleration threshold is greater than the first acceleration threshold, and the second drag force threshold is greater than the first drag force threshold.

6. The method for monitoring the health of a trailer hitch according to claim 1, characterized in that, Also includes: In response to the assembly signal of the traction device, the screw-in length of the traction device is detected; When the screw-in length is greater than or equal to the preset length, the traction device is determined to be assembled in place; When the screw-in length is less than the preset length, it is determined that the traction device is not properly assembled, and an assembly reminder is generated.

7. The method for monitoring the health of a trailer hitch according to claim 6, characterized in that, Also includes: After the traction device is assembled in place, a working condition prompt is generated, which includes visual and / or auditory prompts.

8. The method for monitoring the health of a trailer hitch according to claim 1, characterized in that, Also includes: Store the drag acceleration and / or drag force generated by dragging.

9. A trailer hitch health monitoring system, characterized in that, Including sensors and processors; The sensor is used to detect the drag-start signal, as well as the drag acceleration and / or drag force; The processor is configured to respond to the drag-and-drop start signal by determining whether the drag acceleration is greater than or equal to a drag acceleration threshold, and / or determining whether the drag force is greater than or equal to a drag force threshold. When the drag acceleration is greater than or equal to the drag acceleration threshold, and / or the drag force is greater than or equal to the drag force threshold, a preset warning message is generated.

10. A trailer hitch health monitoring device, characterized in that, include: The monitoring and judgment module is used to detect when the traction device is assembled in place, and in response to the towing start signal, determine whether the towing acceleration is greater than or equal to the towing acceleration threshold, and / or determine whether the towing force is greater than or equal to the towing force threshold. The warning module is used to generate a preset warning message when the drag acceleration is greater than or equal to the drag acceleration threshold, and / or the drag force is greater than or equal to the drag force threshold.

11. An electronic device, characterized in that, Including memory and processor; The memory is used to store computer programs; The processor is configured to implement the trailer hook health monitoring method as described in any one of claims 1-8 when executing the computer program.

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