Steering Wheel Assembly Assembly Monitoring Method and System

Abstract

The present application provides a steering wheel assembly monitoring method and system, which relates to the technical field of steering wheels and includes: positioning and marking the steering column of the target steering wheel; assembling the target steering wheel to the steering column based on the target positioning reference to obtain the target assembly result; monitoring the target assembly result according to a predetermined steering wheel button monitoring strategy; if the dynamic resistance information in the target monitoring record conforms to a predetermined signal constraint, activating a signal processor to analyze the target monitoring record to obtain the target button function; performing collaborative analysis on the target execution operation and the target button function to obtain target collaborative information; and weighting the target collaborative information to obtain the target button performance index of the target assembly result. Through the present application, the technical problem in the prior art that the performance of the button cannot be comprehensively evaluated, affecting the stability and reliability of the button function, can be solved, and the technical effects of improving the button response speed, accuracy, and multifunctional stability can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of steering wheels, and particularly to a method and system for monitoring the assembly of a steering wheel assembly. Background Art

[0002] With the continuous improvement of the intelligence and electrification levels of automobiles, the button functions of in-vehicle systems have gradually become complex, and the buttons on the steering wheel undertake more and more operation tasks. Ensuring that these buttons can work stably and efficiently during the long-term use of the vehicle has become an urgent problem to be solved in the production process.

[0003] Currently, the button function detection methods in the prior art usually rely only on simple resistance values or switch states to determine whether the buttons are working properly. Although this method can achieve function judgment to a certain extent, its limitations are very obvious. For example, the resistance value may be affected by factors such as ambient temperature and humidity, resulting in errors in the detection results, and thus the button function is unstable. In addition, the prior art usually only focuses on whether the button is pressed, while ignoring other performance indicators such as the response speed and accuracy of the button's execution of operations. With the increase in intelligent functions of automobiles, the method of simply relying on resistance signals for detection obviously cannot meet the requirements of multi-functional and highly reliable in-vehicle systems.

[0004] In summary, there is a technical problem in the prior art that due to relying on simple resistance values or switch states for button function detection, the performance of the buttons cannot be comprehensively evaluated, further affecting the stability and reliability of the button functions. Summary of the Invention

[0005] The purpose of the present application is to provide a method and system for monitoring the assembly of a steering wheel assembly to solve the technical problem in the prior art that due to relying on simple resistance values or switch states for button function detection, the performance of the buttons cannot be comprehensively evaluated, further affecting the stability and reliability of the button functions.

[0006] In view of the above problems, the present application provides a method and system for monitoring the assembly of a steering wheel assembly.

[0007] In a first aspect, the present application provides a method for monitoring the assembly of a steering wheel assembly, which is implemented through a steering wheel assembly monitoring system, including: activating an auxiliary tooling, and positioning and marking the steering column of a target steering wheel through a scribing turntable in the auxiliary tooling to obtain a target positioning reference; assembling the target steering wheel to the steering column based on the target positioning reference to obtain a target assembly result; reading a predetermined steering wheel button monitoring strategy, and monitoring the target assembly result according to the predetermined steering wheel button monitoring strategy to obtain a target monitoring record; extracting dynamic resistance information in the target monitoring record, and determining whether the dynamic resistance information conforms to a predetermined signal constraint; if the dynamic resistance information conforms to the predetermined signal constraint, activating a signal processor to analyze the target monitoring record to obtain a target button function; obtaining a target execution operation, and performing collaborative analysis on the target execution operation and the target button function to obtain target collaborative information; and obtaining a target button performance index of the target assembly result through weighted normalization processing of the target collaborative information.

[0008] In a second aspect, the present application further provides a steering wheel assembly monitoring system for executing the steering wheel assembly monitoring method as described in the first aspect, including: a positioning module for activating an auxiliary tooling and positioning and marking the steering column of a target steering wheel through a scribing turntable in the auxiliary tooling to obtain a target positioning reference; an assembly module for assembling the target steering wheel to the steering column based on the target positioning reference to obtain a target assembly result; a monitoring module for reading a predetermined steering wheel button monitoring strategy and monitoring the target assembly result according to the predetermined steering wheel button monitoring strategy to obtain a target monitoring record; a judgment module for extracting dynamic resistance information in the target monitoring record and determining whether the dynamic resistance information conforms to a predetermined signal constraint; an analysis module for, if the dynamic resistance information conforms to the predetermined signal constraint, activating a signal processor to analyze the target monitoring record to obtain a target button function; a collaborative module for obtaining a target execution operation and performing collaborative analysis on the target execution operation and the target button function to obtain target collaborative information; and a weighting module for obtaining a target button performance index of the target assembly result through weighted normalization processing of the target collaborative information.

[0009] The technical solutions provided in this application have at least the following technical effects or advantages: By activating the auxiliary tooling, and using the line-drawing turntable in the auxiliary tooling to position and mark the steering column of the target steering wheel, a target positioning reference is obtained; Based on the target positioning reference, the target steering wheel is assembled to the steering column to obtain a target assembly result; Read the predetermined steering wheel button monitoring strategy, and monitor the target assembly result according to the predetermined steering wheel button monitoring strategy to obtain a target monitoring record; Extract the dynamic resistance information in the target monitoring record, and determine whether the dynamic resistance information meets the predetermined signal constraints; If the dynamic resistance information meets the predetermined signal constraints, activate the signal processor to analyze the target monitoring record to obtain the target button function; Obtain the target execution operation, and perform collaborative analysis on the target execution operation and the target button function to obtain target collaborative information; The weighted and standardized target collaborative information is used to obtain the target button performance index of the target assembly result. That is to say, by achieving the technical goal of accurately evaluating and comprehensively monitoring the button performance, the technical effect of improving the button response speed, accuracy, and multifunctional stability is achieved.

[0010] The above description is only an overview of the technical solutions of this application. In order to be able to understand the technical means of this application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features, and advantages of this application more obvious and understandable, the following specifically describes the specific embodiments of this application. It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of this application, nor is it used to limit the scope of this application. Other features of this application will become easy to understand through the following description of the specification. Brief Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions in this application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary, and for those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0012] Figure 1 It is a schematic flowchart of the steering wheel assembly monitoring method of this application;

[0013] Figure 2 It is a schematic structural diagram of the steering wheel assembly monitoring system of this application.

[0014] Description of the Reference Numerals in the Drawings:

[0015] Positioning module 11, assembly module 12, monitoring module 13, judgment module 14, analysis module 15, collaboration module 16, weighting module 17. Specific implementation mode

[0016] By providing a steering wheel assembly monitoring method and system, the present application solves the technical problem in the prior art that due to relying on simple resistance values or switch states for key function detection, it is impossible to comprehensively evaluate the performance of the keys, further affecting the stability and reliability of the key functions. The technical goal of accurately evaluating and comprehensively monitoring the key performance is achieved, and the technical effects of improving the key response speed, accuracy, and multi-functional stability are achieved.

[0017] Next, the technical solutions in the present application will be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described herein. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application. Additionally, it should be noted that for the sake of description, only the parts related to the present application are shown in the drawings rather than all of them.

[0018] Embodiment 1. Please refer to the attached Figure 1 The present application provides a steering wheel assembly monitoring method, which is applied to a steering wheel assembly monitoring system and specifically includes the following steps:

[0019] Step 1: Activate the auxiliary tooling, and use the marking turntable in the auxiliary tooling to position and mark the steering column of the target steering wheel to obtain a target positioning reference.

[0020] Specifically, the target steering wheel is the steering wheel to be monitored for assembly. Activating the auxiliary tooling means starting and using a tool or device that can provide assistance during the assembly process, such as helping with positioning or ensuring accuracy. Then, operate through the marking turntable in the auxiliary tooling. The marking turntable is a rotatable device, and its surface may contain reference lines for calibration. By rotating the marking turntable, the steering column of the target steering wheel can be positioned and marked, that is, the precise position of the steering column is determined. In this way, the obtained target positioning reference becomes a reference point during the steering wheel assembly process, ensuring that the assembly of each part of the steering wheel meets the predetermined accuracy requirements. Through a process of gradual refinement and precise calibration, an irregular object is gradually adjusted to the standard position through a series of tools, ensuring the high precision and high quality of the final product.

[0021] Step 2: Assemble the target steering wheel to the steering column based on the target positioning reference to obtain a target assembly result.

[0022] Specifically, based on the target positioning reference, assembling the target steering wheel to the steering column is an exact assembly process. The target positioning reference provides an accurate position and orientation for the assembly process. During the process of assembling the target steering wheel to the steering column, it is necessary to ensure that the connection between the steering wheel and the steering column meets the design requirements according to the calibration information of the target positioning reference. The steering column is usually an important vehicle component that connects the steering wheel and the vehicle's steering system, and it is crucial to maintain an accurate fit. After the assembly is completed, the target assembly result is formed, indicating that all components have been correctly and precisely assembled together and meet the specified performance standards.

[0023] Step 3: Read the predetermined steering wheel button monitoring strategy, and monitor the target assembly result according to the predetermined steering wheel button monitoring strategy to obtain a target monitoring record.

[0024] Specifically, read the predetermined steering wheel button monitoring strategy. The predetermined steering wheel button monitoring strategy includes requirements for the functions, responses, durability, etc. of each button, such as whether the button can be operated smoothly and whether the feedback is clear. Then, monitoring the target assembly result according to the predetermined steering wheel button monitoring strategy means that after the assembly of the steering wheel assembly is completed, the performance of the assembled steering wheel buttons needs to be checked according to these rules. For example, it can be checked whether the buttons can be triggered normally and whether the signals can be transmitted correctly. Finally, through these monitoring operations, a target monitoring record is obtained, and the record includes the performance data of each button and whether it meets the predetermined standards, ensuring the reliability and accuracy of the assembly result.

[0025] Step 4: Extract the dynamic resistance information from the target monitoring record, and determine whether the dynamic resistance information meets the predetermined signal constraints.

[0026] Specifically, extracting the dynamic resistance information from the target monitoring record means obtaining the data related to the resistance change from the completed monitoring record, which reflects the resistance change of the electrical signal button during operation. The dynamic resistance information refers to the real-time change of the resistance value when the button is pressed or released. For example, the resistance may decrease when the button is pressed and return to the original value after release. Then, determining whether the dynamic resistance information meets the predetermined signal constraints means that the extracted dynamic resistance data needs to be compared with the pre-set standards to confirm whether it is within the allowable range. The predetermined signal constraints are usually set according to the design requirements. For example, the resistance change should be within a certain specific range (such as between 10 ohms and 50 ohms). If it exceeds this range, it indicates that the button may have a fault or abnormal electrical performance, ensuring that the electrical performance of the button is within the expected range, so as to ensure that the assembled steering wheel buttons can be used normally. The judgment method is shown in the following table:

[0027]

[0028] Step Five: If the dynamic resistance information conforms to the predetermined signal constraint, activate the signal processor to analyze the target monitoring record to obtain the target key function.

[0029] Specifically, if the dynamic resistance information conforms to the predetermined signal constraint, it means that the detected resistance change information conforms to the preset standard range. The dynamic resistance information refers to the change of the resistance of a key or a circuit over time during an operation, while the predetermined signal constraint is a set allowable range or standard value of resistance change. For example, if the resistance change exceeds the predetermined signal constraint, it does not conform to the predetermined signal constraint. If the dynamic resistance information conforms to these predetermined signal constraints, subsequent operations will continue to be executed.

[0030] When the resistance information meets the expectation, the signal processor will start to work and analyze the data of the target monitoring record. The target monitoring record usually contains various data generated during the operation of the device, including resistance values, operation time, and other information. By analyzing these records, the signal processor can identify the status and functional performance of the target key. For example, by analyzing the monitoring record, the signal processor can determine whether a certain key is pressed and whether the corresponding function is successfully triggered.

[0031] By analyzing the monitoring record, the specific function of the key is finally determined as the target key function. The target key function is determined by the design and control logic of the key. For example, a certain key may be used to adjust the volume, switch the vehicle mode, or open the window. By analyzing the target monitoring record, the signal processor can confirm the actual function of the key, thereby ensuring that the function of the key can be correctly implemented during actual operation.

[0032] Step Six: Obtain the target execution operation, and perform collaborative analysis on the target execution operation and the target key function to obtain the target collaborative information.

[0033] Specifically, the target execution operation is usually a certain function triggered by the user's intention, such as pressing a certain button to adjust the volume, switch the media playback mode, or adjust the air conditioner temperature. Obtaining the target execution operation means identifying or selecting the specific operation that the user needs to execute from the system, determining the user's operation intention, and preparing to perform subsequent processing based on this operation.

[0034] Perform collaborative analysis on the target execution operation and the target key function to identify the relationship between the target execution operation and the key function. The collaborative analysis combines the function of the key and the execution operation to ensure that the operation of the key can correctly trigger the corresponding function. For example, when the user presses the volume up / down key, confirm that the function of this key is to adjust the volume and ensure that the cooperation between the execution operation and the function is correct.

[0035] By performing a collaborative analysis of the operations on the target and the functions of the target buttons, information regarding the relationship between the two, namely the target collaborative information, is finally generated. The target collaborative information is a data set containing the corresponding relationships between operations and functions, which helps to determine the functions that each button should perform under different circumstances.

[0036] Step 7: Obtain the target button performance index of the target assembly result from the weighted standardized target collaborative information.

[0037] Specifically, the standardization process is to convert different data into a unified standard so that they can be compared and analyzed on the same scale. The weighted standardized target collaborative information is given different weights according to the importance of each factor to obtain the target button performance index of the target assembly result, aiming to measure the performance of the button in actual operation. For example, if a button has a higher performance index, it indicates that its performance in all aspects is relatively superior and it can execute functions quickly and accurately. On the contrary, the worse the performance is, which helps to obtain the performance of the button during the entire assembly process.

[0038] The steering wheel assembly monitoring method is applied to the steering wheel assembly monitoring system, which can achieve the technical goal of accurately evaluating and comprehensively monitoring the button performance, and achieve the technical effect of improving the button response speed, accuracy, and multi-function stability.

[0039] Furthermore, this application also includes: before assembling the target steering wheel to the steering column based on the target positioning reference to obtain the target assembly result, it also includes obtaining the positioning base in the auxiliary tooling and connecting the positioning base to the steering column through a predetermined connection method.

[0040] Specifically, the target positioning reference is an accurate position point determined by the auxiliary tooling. Through the target positioning reference, it can be ensured that the assembly of the target steering wheel and the steering column meets the design requirements to ensure the accuracy and correctness of the final assembly. Assemble the target steering wheel to the steering column based on the target positioning reference. Among them, the steering column is a component in the vehicle steering system that needs to be accurately docked with the steering wheel to achieve the steering function.

[0041] Then, obtain the positioning base in the auxiliary tooling. The positioning base is a supporting component in the assembly process, which has a specific geometric shape and accuracy, and can ensure that other components (such as the steering wheel or the steering column) are accurately positioned to the correct position. Provide the required support and positioning through the auxiliary tooling to help the assembly process achieve high precision.

[0042] Then, connect the positioning base and the steering column in a predetermined connection manner. The predetermined connection manner may be mechanical fixation, screw connection, snap connection, etc. to engage the external spline, ensuring a fixed and tight connection between the auxiliary tooling and the steering column. The specific method is determined according to the design requirements. Through the predetermined connection manner, the positioning base can maintain an accurate positional relationship with the steering column, ensuring that the components during the assembly process will not affect the final result due to loosening or displacement.

[0043] Finally, the target assembly result is obtained. The target assembly result means that all components have been assembled according to precise steps, all connections and positioning are in place, and finally a complete assembly with complete functions and performance meeting the requirements is formed, ensuring precise docking between components.

[0044] Furthermore, this application also includes: extracting the electrical signal key monitoring strategy in the predetermined steering wheel key monitoring strategy; performing performance detection on the target electrical signal keys in the target assembly result according to the electrical signal key monitoring strategy to obtain the dynamic resistance information; extracting the LIN signal key monitoring strategy in the predetermined steering wheel key monitoring strategy; performing performance detection on the target LIN signal keys in the target assembly result according to the LIN signal key monitoring strategy to obtain the data packet information; synchronizing the dynamic resistance information and the data packet information based on the detection timestamp to obtain the target monitoring record.

[0045] Specifically, extract the electrical signal key monitoring strategy in the predetermined steering wheel key monitoring strategy, and extract the specific strategy related to the electrical signal keys. The electrical signal key monitoring strategy includes the rules and methods for monitoring the electrical performance of the keys on the steering wheel. For example, the electrical signal keys may involve detecting whether the keys can transmit electrical signals normally, or whether the electrical connections of the keys are stable.

[0046] Performing performance detection on the target electrical signal keys in the target assembly result according to the electrical signal key monitoring strategy to obtain the dynamic resistance information means performing an actual performance test on the electrical signal keys in the assembled steering wheel according to the above strategy. This test may include measuring the change in resistance value. The dynamic resistance information refers to the change in resistance over time or with key actions during key operation, ensuring that unstable electrical signal transmission does not occur during key operation.

[0047] Extracting the LIN signal key monitoring strategy in the predetermined steering wheel key monitoring strategy means extracting the partial strategy related to the LIN (Local Interconnect Network) signal key from the original monitoring scheme. The LIN signal key monitoring strategy is about whether the signals transmitted through the local interconnect network meet the standards, especially the situation where the keys on the steering wheel communicate with other vehicle systems through the LIN protocol. These keys may be used to send or receive data packets, and during this process, the performance of the LIN signal keys must meet certain requirements.

[0048] After completing the assembly of the steering wheel assembly, perform performance testing on the target LIN signal keys in the assembly result of the target assembly according to the LIN signal key monitoring strategy, that is, conduct a functional test on the LIN signal keys in the assembly result to detect whether the data transmitted by the keys through the LIN protocol is accurate and complete, and obtain the data packet information. The data packet information is the specific data generated during the transmission of these signals, recording the status and results of the key operations.

[0049] According to the timestamps recorded in each test, synchronize the dynamic resistance information and the data packet information in chronological order to ensure that the data of the two can match. The timestamp refers to the specific time when the data occurs, ensuring that different data can be correctly aligned, and finally forming a complete target monitoring record, which records all important information during the entire assembly and testing process.

[0050] By separately conducting detailed performance testing on the electrical signal keys and LIN signal keys of the steering wheel, ensure that they meet the predetermined requirements during the assembly process. By synchronizing different types of data, finally obtain the target monitoring record, which not only includes the electrical performance data but also covers the effectiveness of the communication signals. Through this detailed monitoring and recording, it can be ensured that the steering wheel key system after assembly can operate reliably in actual use.

[0051] Furthermore, this application also includes: analyzing the dynamic resistance information to obtain the resistance signal time sequence; collecting the resistance signal time domain feature set of the resistance signal time sequence; collecting the resistance signal frequency domain feature set of the resistance signal frequency domain obtained by performing fast Fourier transform on the resistance signal time sequence; constructing a signal feature set based on the resistance signal time domain feature set and the resistance signal frequency domain feature set; when any signal feature parameter in the signal feature set meets the corresponding any signal feature threshold, then the dynamic resistance information meets the predetermined signal constraint.

[0052] Specifically, analyzing the dynamic resistance information to obtain the resistance signal timing sequence means deeply analyzing the obtained resistance change data to extract the sequence of resistance values changing over time. The resistance signal timing sequence reflects the change process of the resistance over a period of time. For example, when a button is pressed, the resistance gradually decreases, and when released, the resistance gradually returns. By analyzing the timing data, the dynamic change of the resistance over time can be understood, providing a basis for subsequent performance evaluation.

[0053] Collecting the resistance signal time-domain feature set of the resistance signal timing sequence means extracting the time-related feature data from the resistance signal timing sequence. These features may include the amplitude, waveform, periodicity, etc. of the signal, which can describe the change trend of the resistance signal over time. For example, by analyzing the resistance change curve, parameters such as the rate and amplitude of the resistance change can be obtained, so as to better understand the electrical characteristics during the button operation process.

[0054] Collecting the resistance signal frequency-domain feature set of the resistance signal frequency domain obtained from the fast Fourier transform of the resistance signal timing sequence means extracting the frequency-domain feature data after converting the resistance signal timing sequence into a frequency-domain signal through the fast Fourier transform (FFT). The frequency-domain features reflect the energy distribution of the signal at different frequencies, which can help analyze the potential periodicity and frequency components in the resistance signal. For example, button operation may cause signal fluctuations at a certain frequency. Through FFT, these frequency components can be identified to further judge the stability and normality of the signal.

[0055] Constructing a signal feature set based on the resistance signal time-domain feature set and the resistance signal frequency-domain feature set means integrating the feature data extracted from the time domain and the frequency domain to form a complete signal feature set for further analyzing and judging the quality of the resistance signal. For example, the time-domain features may indicate the amplitude change of the signal, while the frequency-domain features can reveal the frequency characteristics of the signal. The combination of the two can provide a more accurate judgment of the signal.

[0056] When any signal feature parameter in the signal feature set meets the corresponding any signal feature threshold, the dynamic resistance information conforms to the predetermined signal constraint, that is, if any one of the feature parameters (such as amplitude, frequency, etc.) in the signal feature set meets the predetermined standard range, then it can be considered that the dynamic resistance information conforms to the set signal constraint. The signal feature threshold is preset and used to determine whether the signal is within the normal range. For example, if the frequency of the signal exceeds the set maximum frequency or the amplitude exceeds the maximum tolerance value, it may indicate a problem with the button.

[0057] By analyzing the time domain and frequency domain of the dynamic resistance information, the performance of the resistance signal can be comprehensively evaluated from different perspectives. First, the change of the resistance signal is extracted from the time domain, and then the frequency characteristics of the signal are revealed through frequency domain analysis. Then, these features are combined to construct a complete signal feature set. Finally, by comparing with the predetermined signal constraints, it is judged whether the signal meets the specifications, so as to determine whether the target monitoring information meets the expected requirements.

[0058] Furthermore, the present application also includes: when any signal feature parameter in the signal feature set does not meet the corresponding any signal feature threshold, an abnormal alarm instruction is issued, and the assembly result of the target assembly is checked and repaired based on the abnormal alarm instruction.

[0059] Specifically, when any signal feature parameter in the signal feature set does not meet the corresponding any signal feature threshold, it means that after analyzing the time domain and frequency domain characteristics of the resistance signal, it is found that a certain signal feature (such as the resistance change amplitude, frequency, etc.) does not reach the predetermined standard range. These feature thresholds are set in advance to determine whether the signal meets the requirements of the normal working state. If the feature parameter fails to meet the threshold condition, for example, the change of the resistance value exceeds the allowable range, it will be judged as abnormal, and then an abnormal alarm instruction will be issued to remind the relevant personnel of potential problems. The instruction may include specific error information, equipment status and recommended follow-up measures, so that the operator can detect the problem in time and take appropriate treatment methods.

[0060] Checking and repairing the assembly result of the target assembly based on the abnormal alarm instruction means that after receiving the abnormal alarm instruction, the assembly result of the target assembly is carefully checked to find out the possible fault sources and repair them. For example, by re-evaluating the assembly quality, checking whether there are problems such as poor electrical connection of the steering wheel buttons and abnormal button functions. The checking and repairing may include replacing components, adjusting components or re-assembling to ensure that the steering wheel button system returns to the normal working state.

[0061] When it is found through analyzing the signal feature set that a certain feature parameter does not reach the predetermined standard, an abnormal alarm is automatically triggered to remind the operator to handle it in time. Subsequently, based on the alarm instruction, the assembly result of the target assembly is checked and repaired to ensure that the assembled steering wheel button system can work normally. Through the real-time monitoring and alarm mechanism, the assembly quality can be effectively improved and subsequent problems caused by component failures can be reduced.

[0062] Further, this application also includes: performing analog-to-digital conversion processing on the first resistance signal in the resistance signal timing by the signal processor to obtain a first digital signal; when the first digital signal reaches a predetermined threshold, reversely matching the first key corresponding to the first digital signal; obtaining the first control logic corresponding to the first key, and forming the target key function based on the first control logic.

[0063] Specifically, performing analog-to-digital conversion processing on the first resistance signal randomly extracted from the resistance signal timing by the signal processor means that the signal processor performs digital processing on the resistance signal, converting the continuously changing resistance signal into a digital signal that can be processed by a computer to obtain a first digital signal. The resistance signal timing refers to the signal generated by the change of the resistance value over time, and analog-to-digital conversion is the process of converting these analog signals into digital signals. For example, the change range of the resistance is from 0 ohms to 50 ohms, and the signal processor converts these continuously changing analog resistance values into digital signals (such as decimal values), enabling a computer or other digital system to further process them.

[0064] When the first digital signal reaches a predetermined threshold, reversely matching the first key corresponding to the first digital signal means that when the digital signal reaches the set standard, the signal will be recognized and matched with a specific key. Among them, the predetermined threshold is a preset value, indicating the normal working range of the key. When the digital signal exceeds the predetermined threshold, it is determined that the key is pressed or activated at this time. The process of reverse matching refers to tracing back from the digital signal to the specific key to determine which key generated this signal, ensuring that the action of the key and the feedback of the system are accurately corresponding.

[0065] Obtaining the first control logic corresponding to the first key and forming the target key function based on the first control logic means that after recognizing the key, the control logic of the key is obtained. The control logic refers to the rules or programs related to the key operation. For example, pressing a certain key may trigger a certain function, such as adjusting the volume or switching the in-vehicle system. Forming the target key function based on the control logic means determining its actual function performance according to the definition and role of the key. For example, a certain key may perform operations such as increasing the volume or switching the media playback according to its control logic.

[0066] Converting the resistance signal timing into a digital signal through analog-to-digital conversion, and further determining that the corresponding key is activated after the digital signal reaches the set threshold. Finding the corresponding key through reverse matching and obtaining the control logic of the key, so as to finally define and execute the function of the key. Through the digitization of the signal and logical matching, it is ensured that the key operation can accurately respond and achieve the predetermined function.

[0067] Further, this application also includes: identifying the data packet information in the target monitoring record through the signal processor to obtain a first data packet; matching a second key corresponding to the first data packet, and obtaining a second control logic corresponding to the second key; and adding the second control logic to the target key function.

[0068] Specifically, identifying the data packet information in the target monitoring record through the signal processor to obtain a first data packet means that the signal processor extracts and identifies the packet information containing useful data from the target monitoring record. A data packet refers to an information unit for transmission, including data such as the status of a key and function instructions. When the signal processor performs identification, it parses the packet and converts it into usable information. For example, it determines whether a certain key is pressed or a certain instruction is generated, ensuring that the information in the packet can be understood by the system and further processed.

[0069] Matching the second key corresponding to the first data packet and obtaining the second control logic corresponding to the second key means that based on the information extracted from the data packet, finding the associated key and obtaining the control logic of the key. Each key has its unique control logic, which defines the specific function triggered when the key is pressed. For example, a certain key may be related to the volume increase function, and another key may be related to switching the media mode. By matching the information in the data packet, determining which key is activated, and extracting the control logic of the key for subsequent use.

[0070] Integrating the obtained control logic of the second key into the function of the target key to ensure that the function of the target key can operate according to the set control logic. For example, if the control logic of the second key is to adjust the volume, adding this function to the target key so that when the target key is pressed, the volume adjustment operation can be triggered. The function of the key is thus specifically defined and can be executed as expected in actual use.

[0071] The signal processor identifies the data packet information from the target monitoring record and extracts the content of the first data packet. Then, by matching the data packet, the corresponding key is found and the control logic of the key is obtained. Finally, the control logic is integrated into the function of the target key, enabling the key to perform specific operations. Through identification, matching, and integration, the correct implementation of each key function is ensured.

[0072] Furthermore, this application also includes: extracting first collaborative information from the target collaborative information, where the first collaborative information includes a first execution operation and a first key function; when the first execution operation and the first key function meet a predetermined function mapping constraint, calculating a first execution time difference between the first execution operation and the first key function; performing weighted calculation on the standardized first execution time difference to obtain the target key performance index.

[0073] Specifically, randomly extracting the first collaborative information from the target collaborative information means randomly obtaining the functions related to a specific key and execution operation from the target collaborative information as the first execution operation and the first key function. The first execution operation refers to the execution of an operation, such as a key being pressed or a function being activated, while the first key function is the specific function corresponding to the key, such as volume increase or mode switching.

[0074] When the first execution operation and the first key function meet a predetermined function mapping constraint, it means that between the execution operation and the key function, it is confirmed that their relationship meets the pre-set rules or standards. The predetermined function mapping constraint is set in advance. For example, it is stipulated that a certain key can only correspond to a specific function operation to ensure that the actual function of the key is consistent with the design requirements. If the execution operation and the key function match, calculating the first execution time difference between the first execution operation and the first key function means measuring the difference between the time when the key executes the operation and the time required for the function to be actually completed. The execution time difference refers to the time interval from when the key is activated to when the function is actually completed, which is used to evaluate the speed and accuracy of the key response. For example, if the time taken to complete the volume adjustment operation after pressing the volume up button is longer than the predetermined value, it may mean that the response speed is slow or there is a delay.

[0075] Performing weighted calculation on the standardized first execution time difference, that is, weighting the time difference according to different importance levels to obtain the target key performance index. Weighted calculation means assigning different weights to the time difference according to different criteria or requirements. For example, operations with faster response speeds may be assigned higher weights. Finally, the obtained key performance index can comprehensively reflect the working performance and response quality of the key.

[0076] In summary, the steering wheel assembly monitoring method provided by this application has the following technical effects: By activating the auxiliary tooling and using the scribing turntable in the auxiliary tooling to position and mark the steering column of the target steering wheel, a target positioning reference is obtained; based on the target positioning reference, the target steering wheel is assembled to the steering column to obtain a target assembly result; a predetermined steering wheel button monitoring strategy is read, and the target assembly result is monitored according to the predetermined steering wheel button monitoring strategy to obtain a target monitoring record; the dynamic resistance information in the target monitoring record is extracted, and it is judged whether the dynamic resistance information conforms to the predetermined signal constraint; if the dynamic resistance information conforms to the predetermined signal constraint, a signal processor is activated to analyze the target monitoring record to obtain a target button function; a target execution operation is obtained, and the target execution operation and the target button function are analyzed collaboratively to obtain a target collaborative information; the weighted and standardized target collaborative information is used to obtain the target button performance index of the target assembly result. That is to say, by achieving the technical goal of accurately evaluating and comprehensively monitoring the button performance, the technical effects of improving the button response speed, accuracy, and multifunctional stability are achieved.

[0077] Embodiment 2. Based on the steering wheel assembly monitoring method in the foregoing embodiment and the same inventive concept, this application also provides a steering wheel assembly monitoring system. Please refer to the attached Figure 2 , including: a positioning module 11, which is used to activate the auxiliary tooling and use the scribing turntable in the auxiliary tooling to position and mark the steering column of the target steering wheel to obtain a target positioning reference; an assembly module 12, which is used to assemble the target steering wheel to the steering column based on the target positioning reference to obtain a target assembly result; a monitoring module 13, which is used to read a predetermined steering wheel button monitoring strategy and monitor the target assembly result according to the predetermined steering wheel button monitoring strategy to obtain a target monitoring record; a judgment module 14, which is used to extract the dynamic resistance information in the target monitoring record and judge whether the dynamic resistance information conforms to the predetermined signal constraint; an analysis module 15, which is used to activate a signal processor to analyze the target monitoring record to obtain a target button function if the dynamic resistance information conforms to the predetermined signal constraint; a collaboration module 16, which is used to obtain a target execution operation and perform collaborative analysis on the target execution operation and the target button function to obtain a target collaborative information; a weighting module 17, which is used to obtain the target button performance index of the target assembly result by weighting and standardizing the target collaborative information.

[0078] Further, the steering wheel assembly installation monitoring system is further configured to: before installing the target steering wheel onto the steering column based on the target positioning reference to obtain the target assembly result, obtain the positioning base in the auxiliary tooling and connect the positioning base to the steering column through a predetermined connection method.

[0079] Further, the steering wheel assembly installation monitoring system is further configured to: extract the electrical signal key monitoring strategy in the predetermined steering wheel key monitoring strategy; perform performance detection on the target electrical signal key in the target assembly result according to the electrical signal key monitoring strategy to obtain the dynamic resistance information; extract the LIN signal key monitoring strategy in the predetermined steering wheel key monitoring strategy; perform performance detection on the target LIN signal key in the target assembly result according to the LIN signal key monitoring strategy to obtain the data packet information; synchronize the dynamic resistance information and the data packet information based on the detection timestamp to obtain the target monitoring record.

[0080] Further, the steering wheel assembly installation monitoring system is further configured to: analyze the dynamic resistance information to obtain the resistance signal timing sequence; collect the resistance signal time-domain feature set of the resistance signal timing sequence; collect the resistance signal frequency-domain feature set of the resistance signal frequency domain obtained by performing fast Fourier transform on the resistance signal timing sequence; form a signal feature set based on the resistance signal time-domain feature set and the resistance signal frequency-domain feature set; when any signal feature parameter in the signal feature set meets the corresponding any signal feature threshold, the dynamic resistance information conforms to the predetermined signal constraint.

[0081] Further, the steering wheel assembly installation monitoring system is further configured to: when any signal feature parameter in the signal feature set does not meet the corresponding any signal feature threshold, issue an abnormal alarm instruction and perform troubleshooting and repair on the target assembly result based on the abnormal alarm instruction.

[0082] Further, the steering wheel assembly installation monitoring system is further configured to: perform analog-to-digital conversion processing on the first resistance signal in the resistance signal timing sequence through the signal processor to obtain a first digital signal; when the first digital signal reaches a predetermined threshold, inversely match the first key corresponding to the first digital signal; obtain the first control logic corresponding to the first key and form the target key function based on the first control logic.

[0083] Further, the steering wheel assembly assembly monitoring system is further configured to: identify the data message information in the target monitoring record through the signal processor to obtain a first data message; match a second button corresponding to the first data message, and obtain a second control logic corresponding to the second button; and add the second control logic to the target button function.

[0084] Further, the steering wheel assembly assembly monitoring system is further configured to: extract first collaboration information from the target collaboration information, where the first collaboration information includes a first execution operation and a first button function; when the first execution operation and the first button function meet a predetermined function mapping constraint, calculate a first execution time difference between the first execution operation and the first button function; and perform weighted calculation on the standardized first execution time difference to obtain the target button performance index.

[0085] The various embodiments in this specification are described in a progressive manner, and the key point of each embodiment is the difference from other embodiments. The steering wheel assembly assembly monitoring method and specific examples in the foregoing Embodiment 1 are equally applicable to the steering wheel assembly assembly monitoring system in this embodiment. Through the foregoing detailed description of the steering wheel assembly assembly monitoring method, those skilled in the art can clearly know the steering wheel assembly assembly monitoring system in this embodiment. Therefore, for the sake of brevity of the specification, it will not be described in detail herein.

[0086] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0087] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the present application and its equivalent technologies, the present application is also intended to include these changes and modifications.

Claims

1. A steering wheel assembly monitoring method, characterized in that: include: Activate the auxiliary tooling, and mark the steering column of the target steering wheel by using the line drawing turntable in the auxiliary tooling to obtain the target positioning reference; Assembling the target steering wheel to the steering column based on the target positioning reference to obtain a target assembly result; Reading a predetermined steering wheel button monitoring strategy, and monitoring the target assembly result according to the predetermined steering wheel button monitoring strategy to obtain a target monitoring record; Extracting dynamic resistance information from the target monitoring record, and determining whether the dynamic resistance information complies with a predetermined signal constraint; If the dynamic resistance information meets the predetermined signal constraint, activating the signal processor to analyze the target monitoring record to obtain the target key function; Acquire a target execution operation, and collaboratively analyze the target execution operation with the target key function to obtain target collaborative information; The target collaborative information is processed by weighted normalization to obtain a target key performance index of the target assembly result, including: Extracting first collaborative information from the target collaborative information, wherein the first collaborative information includes a first execution operation and a first key function; When the first execution operation and the first key function meet a predetermined function mapping constraint, calculating a first execution time difference between the first execution operation and the first key function; The first execution time difference after the standardization is weightedly calculated to obtain the target key performance index.

2. The steering wheel assembly monitoring method according to claim 1, characterized in that: Before assembling the target steering wheel to the steering column based on the target positioning reference to obtain the target assembly result, it also includes obtaining the positioning base in the auxiliary tooling and connecting the positioning base to the steering column through a predetermined connection method.

3. The steering wheel assembly monitoring method according to claim 1, characterized in that: Reading a predetermined steering wheel button monitoring strategy, and monitoring the target assembly result according to the predetermined steering wheel button monitoring strategy to obtain a target monitoring record, including: Extracting the electrical signal button monitoring strategy from the predetermined steering wheel button monitoring strategy; Performing performance testing on the target electrical signal button in the target assembly result according to the electrical signal button monitoring strategy to obtain the dynamic resistance information; Extracting a LIN signal button monitoring strategy from the predetermined steering wheel button monitoring strategy; Performing performance testing on the target LIN signal button in the target assembly result according to the LIN signal button monitoring strategy to obtain data message information; The dynamic resistance information and the data message information are synchronized based on the detection timestamp to obtain the target monitoring record.

4. The steering wheel assembly monitoring method according to claim 3, characterized in that: If the dynamic resistance information meets the predetermined signal constraint, the signal processor is activated to analyze the target monitoring record to obtain the target key function, including: Analyzing the dynamic resistance information to obtain a resistance signal timing sequence; Collecting a resistance signal time domain feature set of the resistance signal time series; Collect a resistance signal frequency domain feature set in the resistance signal frequency domain obtained by fast Fourier transforming the resistance signal time series; Building a signal feature set based on the resistance signal time domain feature set and the resistance signal frequency domain feature set; When any signal feature parameter in the signal feature set satisfies any corresponding signal feature threshold, the dynamic resistance information complies with the predetermined signal constraint.

5. The steering wheel assembly monitoring method according to claim 4, characterized in that: When any signal feature parameter in the signal feature set does not satisfy the corresponding arbitrary signal feature threshold, an abnormal alarm instruction is issued, and the target assembly result is checked and repaired based on the abnormal alarm instruction.

6. The steering wheel assembly monitoring method according to claim 4, characterized in that: If the dynamic resistance information meets the predetermined signal constraint, the signal processor is activated to analyze the target monitoring record to obtain the target key function, including: Performing analog-to-digital conversion processing on the first resistance signal in the resistance signal time sequence by the signal processor to obtain a first digital signal; When the first digital signal reaches a predetermined threshold, reverse matching a first key corresponding to the first digital signal; A first control logic corresponding to the first button is acquired, and the target button function is formed based on the first control logic.

7. The steering wheel assembly monitoring method according to claim 6, characterized in that: If the dynamic resistance information meets the predetermined signal constraint, the signal processor is activated to analyze the target monitoring record to obtain the target key function, further comprising: Identifying the data message information in the target monitoring record by the signal processor to obtain a first data message; Matching a second button corresponding to the first data message, and obtaining a second control logic corresponding to the second button; The second control logic is added to the target button function.

8. Steering wheel assembly monitoring system, characterized in that: The steps for implementing the steering wheel assembly monitoring method according to any one of claims 1 to 7 include: A positioning module, the positioning module is used to activate the auxiliary tooling and mark the steering column of the target steering wheel through a line drawing turntable in the auxiliary tooling to obtain a target positioning reference; An assembly module, the assembly module being used to assemble the target steering wheel to the steering column based on the target positioning reference to obtain a target assembly result; A monitoring module, the monitoring module is used to read a predetermined steering wheel button monitoring strategy, and monitor the target assembly result according to the predetermined steering wheel button monitoring strategy to obtain a target monitoring record; A judgment module, the judgment module is used to extract the dynamic resistance information in the target monitoring record and judge whether the dynamic resistance information meets the predetermined signal constraint; An analysis module, wherein if the dynamic resistance information meets the predetermined signal constraint, the analysis module is used to activate a signal processor to analyze the target monitoring record to obtain a target key function; A collaboration module, the collaboration module is used to obtain a target execution operation, and collaboratively analyze the target execution operation and the target key function to obtain target collaboration information; A weighting module is used to perform weighted normalization processing on the target collaborative information to obtain a target button performance index of the target assembly result, extract the first collaborative information from the target collaborative information, wherein the first collaborative information includes a first execution operation and a first button function, and when the first execution operation and the first button function meet a predetermined function mapping constraint, calculate a first execution time difference between the first execution operation and the first button function, and perform weighted calculation on the first execution time difference after normalization to obtain the target button performance index.

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