Multi-source data analysis intelligent automobile detection device

Abstract

The invention relates to the technical field of automobile detection, in particular to a multi-source data analysis intelligent automobile detection device which comprises a position marking module used for marking the position of an automobile; the distance measuring module is used for measuring the traveling distance of the vehicle; the steering angle detection module is used for detecting the steering angle of the vehicle in real time; the radar detection module is used for monitoring a preset safety distance around the vehicle; the steering wheel angle detection module is used for detecting the steering angle of a steering wheel; the tire steering angle detection module is used for detecting a tire steering angle; the control module is used for controlling steering angles of a steering wheel and tires; the data analysis module is used for verifying the data acquired by the radar detection module; the steering wheel angle adjusting value and the tire steering angle adjusting value are adjusted according to the verification result; and the safety distance detection range of the radar detection module is adjusted again according to the vehicle steering comparison result.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile detection, and in particular to an intelligent automobile detection device for multi-source data analysis. Background Art

[0002] The electric vehicle industry is in a period of rapid growth worldwide. The development of electric vehicles not only reflects the importance of environmental protection, but also reflects the technological progress and changes in market demand. With the continuous advancement of core technologies and the gradual overcoming of constraints, the development trend of electric vehicles will become more obvious. In early cars, the steering system was completely mechanical, relying on the driver's force to be transmitted to the wheels through a series of gears and rods.

[0003] Chinese Patent Publication No.: CN117309417A discloses a data analysis device for automobile performance testing, including: a speed regulating motor, the speed regulating motor is fixed on a flat plate, the speed regulating motor is connected to one end of flywheel shaft one, the other end of flywheel shaft one is connected to one end of flywheel shaft two, the other end of flywheel shaft two is fixed with a brake disc mounting seat, the brake disc mounting seat is equipped with a brake disc, the flat plate is also equipped with a brake caliper assembly, the brake caliper assembly cooperates with the brake disc, the speed regulating motor is connected to a speed measuring gear, the speed measuring gear is connected to a speed sensor, and the speed sensor is used to measure the rotational speed of the speed measuring gear.

[0004] It can be seen that the prior art has the following problems: there is a lack of a detection device for effectively controlling the steering state of the vehicle when the vehicle is turning. Summary of the invention

[0005] To this end, the present invention provides a multi-source data analysis intelligent automobile detection device to overcome the problem in the prior art of lacking a detection device for effectively controlling the steering state of a vehicle when the vehicle is turning.

[0006] To achieve the above-mentioned purpose, the present invention provides a multi-source data analysis intelligent automobile detection device, comprising:

[0007] A position marking module, used for marking the position of the vehicle;

[0008] A distance measurement module is used to measure the distance traveled by the vehicle;

[0009] Steering angle detection module, used for real-time detection of the vehicle's steering angle;

[0010] Radar detection module, used to monitor the preset safety distance around the vehicle;

[0011] A steering wheel angle detection module is used to detect the steering angle of the steering wheel;

[0012] A tire steering angle detection module is used to detect the tire steering angle;

[0013] A control module for controlling the steering angle of the steering wheel and tires;

[0014] A data analysis module is connected to the position marking module, the distance measuring module, the steering angle detection module, the radar detection module, the steering wheel angle detection module, the tire steering angle detection module and the control module, and is used to analyze the data collected by each module, verify the radar detection module according to the analysis result; adjust the steering wheel angle detection module and the tire steering angle detection module according to the verification result; and adjust the safety distance detection range of the radar detection module again according to the vehicle steering comparison result.

[0015] Furthermore, the data analysis module sets a two-dimensional space coordinate system for the area where the vehicle is located according to the initial position data of the vehicle collected by the distance measurement module and according to the target object.

[0016] Furthermore, the data analysis module generates a vehicle travel route for the vehicle after turning according to the vehicle steering angle data collected by the steering angle detection module and the vehicle position data collected by the position marking module.

[0017] Furthermore, the data analysis module generates a simulated vehicle route according to a preset vehicle steering angle and an initial position of the vehicle in a two-dimensional space coordinate system.

[0018] Furthermore, the data analysis unit compares the moving distance of the vehicle on the route after the vehicle turns with the moving distance of the vehicle on the simulated route, and determines whether to adjust the safety distance of radar detection within the standard deviation range based on the comparison result.

[0019] Furthermore, the data analysis unit obtains arbitrary positions of the vehicle's traveling route and the vehicle's simulated route at the same time, and analyzes the distance between two arbitrary positions, and adjusts the steering angle adjustment value of the vehicle's steering wheel according to the analysis result.

[0020] Further, the data analysis unit adjusts the vehicle tire steering angle adjustment value based on the adjusted vehicle steering wheel steering angle adjustment value.

[0021] Furthermore, the control module controls the vehicle to make a second turn, and the data analysis unit makes a second comparison between the vehicle's travel route moving distance and the vehicle's simulated route moving distance during the vehicle turn, and performs feedback adjustment on the safety distance of the radar detection module based on the comparison result.

[0022] Furthermore, the data analysis module performs a second adjustment on the steering angle adjustment value of the vehicle steering wheel according to the safety distance of the radar detection module after feedback adjustment.

[0023] Furthermore, the data analysis module determines whether to adjust the steering angle adjustment value of the vehicle tire for the second time according to the second adjustment result of the steering wheel steering angle adjustment value by the control module.

[0024] Compared with the prior art, the beneficial effect of the present invention lies in that a two-dimensional spatial coordinate system is generated for the area where the vehicle is located through the position of the target object and the vehicle position information collected by the position marking module, which can ensure that when the vehicle turns and moves, the position marking module marks the vehicle position in real time, and generates a curve about the vehicle's route in the two-dimensional spatial coordinate system according to the continuous marked positions of the vehicle, the data analysis module generates a vehicle simulation route according to the vehicle steering angle data collected by the steering angle detection module and the vehicle initial position collected by the position marking module, and generates a curve about the vehicle simulation route in the two-dimensional spatial coordinate system according to the vehicle simulation route, and compares the curve length of the vehicle's route with the length of the vehicle simulation route curve. According to the comparison result, the steering angle of the vehicle when turning can be adjusted to avoid the vehicle turning too early or too late, resulting in a large error in the route, thereby causing the route to be not within the standard angle range when the vehicle turns.

[0025] Furthermore, by setting three targets at different positions, a two-dimensional space coordinate system is set for the area where the vehicle is located, the first target is used as the origin of the two-dimensional space coordinate system, the straight line where the connecting line between the first target and the second target is located is used as the X-axis of the two-dimensional space coordinate system, and the straight line where the connecting line between the first target and the third target is located is used as the Y-axis of the two-dimensional space coordinate system. This can ensure that the position marking module can mark the position of the vehicle at any time, thereby avoiding deviations in the analysis results due to inaccurate vehicle position when analyzing the vehicle's route.

[0026] Furthermore, the data analysis module confirms the steering angle of the vehicle at each periodic detection time according to the vehicle steering angle data collected by the steering angle detection module, and confirms the vehicle position at each periodic detection time according to the vehicle position data collected by the position marking module. According to the vehicle steering angle at each periodic detection time and the position of the vehicle in the two-dimensional coordinate system, the vehicle route after the vehicle turns can be simulated and generated in real time, thereby avoiding inaccurate real-time simulation and generation of the vehicle route after the vehicle turns due to excessive vehicle speed, and ensuring that the vehicle route can be completely restored.

[0027] Furthermore, the data analysis module simulates the vehicle simulation route according to a preset vehicle steering angle and an initial position of the vehicle in a two-dimensional space coordinate system. When simulating according to the vehicle steering angle, the vehicle initial steering angle is obtained to avoid deviations in comparison results caused by a large difference between a subsequently simulated vehicle simulation route and the vehicle travel route due to changes in the vehicle initial steering angle. Simulating the subsequent vehicle simulation route according to the vehicle initial position can ensure that the initial position of the vehicle is consistent with the vehicle travel route, thereby avoiding large differences between the vehicle simulation route and the vehicle travel route due to inconsistent vehicle initial positions.

[0028] Furthermore, the data analysis unit compares the moving distance of the vehicle on the route after the vehicle turns with the moving distance of the vehicle on the simulated route. If the absolute value of the difference between the moving distance of the vehicle on the route and the moving distance of the vehicle on the simulated route is less than or equal to the first standard distance difference, the detection distance of the radar detection module is not adjusted, which can ensure that the difference between the moving distance of the vehicle on the route and the moving distance of the vehicle on the simulated route is within the preset conditions, and the absolute value of the difference is small, which has little impact on the vehicle's route. If the absolute value of the difference between the moving distance of the vehicle on the route and the moving distance of the vehicle on the simulated route is greater than the first standard distance difference and less than or equal to the second standard distance difference, the steering angle adjustment value of the vehicle steering wheel is adjusted. And the vehicle tire steering angle adjustment value can be adjusted, and the steering angle can be continuously adjusted during the vehicle's travel to ensure that the vehicle is on a safe travel track, avoiding danger caused by small angle deviations during the vehicle's travel; if the absolute value of the difference between the vehicle's moving distance on the vehicle's travel route and the vehicle's simulated route moving distance is greater than the second standard distance difference, the data analysis module adjusts the initial detection of the vehicle safety distance by the radar detection module. When the absolute value of the difference between the vehicle's moving distance on the vehicle's travel route and the vehicle's simulated route moving distance is large, the vehicle safety distance adjusted by the radar detection module is reduced, which can avoid danger when the vehicle deviates too much from the predetermined track during travel, thereby ensuring the normal and safe driving of the vehicle.

[0029] Furthermore, the data analysis unit obtains the positions of the vehicle route and the vehicle simulation route at the same time respectively, analyzes the distance between the two positions, adjusts the steering angle adjustment value of the vehicle steering wheel according to the analysis result, obtains the vehicle route position and the vehicle simulation route position corresponding to any detection time respectively, can ensure the accuracy of the comparison result, avoids obtaining the vehicle route position corresponding to different detection times resulting in inaccurate distance between the measured vehicle route position and the vehicle simulation route position, ensures the accuracy of the vehicle position data, if the vehicle route and the vehicle simulation route have the same vehicle position distance at the same time less than the first standard distance difference, then the control unit does not compare the vehicle The steering wheel steering angle adjustment value is adjusted to ensure the stability of the vehicle position distance at the same time, and no adjustment is required; if the vehicle position distance at the same time as the vehicle simulation route is greater than or equal to the first-class standard distance difference and less than the second-class standard distance difference, the control module adjusts the vehicle steering wheel steering angle adjustment value to ensure that the driving state is adjusted in time when the vehicle deviates slightly from the specified route during the steering process, so as to avoid more serious deviation during driving; if the vehicle position distance at the same time as the vehicle simulation route is greater than or equal to the second-class standard distance difference, the control unit performs feedback adjustment on the radar detection module, which can avoid the vehicle steering angle being too large during driving and causing the vehicle to lose control.

[0030] Furthermore, the data analysis unit adjusts the vehicle tire steering angle adjustment value based on the adjusted vehicle steering wheel steering angle adjustment value result, which can avoid adjusting the vehicle tire steering angle adjustment value when the vehicle steering wheel steering angle adjustment value is adjusted to the maximum value, thereby ensuring the accuracy of vehicle steering, and setting the first vehicle tire steering adjustment value to the maximum vehicle tire steering adjustment value to avoid dangerous situations caused by excessive vehicle steering angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of the intelligent automobile detection device for multi-source data analysis in this embodiment;

[0032] Figure 2 This is an operation flow chart of the multi-source data analysis intelligent automobile detection device in this embodiment;

[0033] Figure 3 This is a flow chart of the safety range adjustment of the radar detection module of the multi-source data analysis intelligent automobile detection device in this embodiment;

[0034] Figure 4 This is a flow chart of adjusting the steering wheel steering angle adjustment value of the multi-source data analysis intelligent automobile detection device in this embodiment. DETAILED DESCRIPTION

[0035] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0037] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0038] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] See also Figure 1 - Figure 4 , Figure 1 This is a schematic diagram of the structure of the intelligent automobile detection device for multi-source data analysis in this embodiment; Figure 2 This is an operation flow chart of the multi-source data analysis intelligent automobile detection device in this embodiment;

[0040] Figure 3 This is a flow chart of the safety range adjustment of the radar detection module of the multi-source data analysis intelligent automobile detection device in this embodiment; Figure 4 This is a flow chart of adjusting the steering wheel steering angle adjustment value of the multi-source data analysis intelligent automobile detection device in this embodiment.

[0041] This embodiment provides a multi-source data analysis intelligent automobile detection device, including:

[0042] A position marking module, used for marking the position of the vehicle;

[0043] A distance measurement module is used to measure the distance traveled by the vehicle;

[0044] Steering angle detection module, used for real-time detection of the vehicle's steering angle;

[0045] Radar detection module, used to monitor the preset safety distance around the vehicle;

[0046] A steering wheel angle detection module is used to detect the steering angle of the steering wheel;

[0047] A tire steering angle detection module is used to detect the tire steering angle;

[0048] A control module for controlling the steering angle of the steering wheel and tires;

[0049] A data analysis module is connected to the position marking module, the distance measuring module, the steering angle detection module, the radar detection module, the steering wheel angle detection module, the tire steering angle detection module and the control module, and is used to analyze the data collected by each module, verify the radar detection module according to the analysis result; adjust the steering wheel angle detection module and the tire steering angle detection module according to the verification result; and adjust the safety distance detection range of the radar detection module again according to the vehicle steering comparison result.

[0050] This embodiment provides an operation flow of a multi-source data analysis intelligent automobile detection device, which includes the following steps:

[0051] S101, a position marking module marks the vehicle position;

[0052] S102, a steering angle detection module collects the vehicle steering angle;

[0053] S103, the distance measurement module collects the vehicle travel distance;

[0054] S104, the data analysis module analyzes the data collected by each module;

[0055] S105, the control module adjusts the steering angle adjustment values ​​of the vehicle steering wheel and tire according to the analysis results.

[0056] A two-dimensional spatial coordinate system is generated for the area where the vehicle is located through the position of the target object and the vehicle position information collected by the position marking module, which can ensure that when the vehicle turns and moves, the position marking module marks the vehicle position in real time, and generates a curve about the vehicle's route in the two-dimensional spatial coordinate system based on the continuous marked positions of the vehicle. The data analysis module generates a vehicle simulation route based on the vehicle steering angle data collected by the steering angle detection module and the vehicle initial position collected by the position marking module, and generates a curve about the vehicle simulation route in the two-dimensional spatial coordinate system based on the vehicle simulation route. The curve length of the vehicle's route is compared with the length of the vehicle simulation route curve. According to the comparison result, the steering angle of the vehicle when turning can be adjusted to avoid the vehicle turning too early or too late, resulting in a large error in the route, thereby causing the route to be not within the standard angle range when the vehicle turns.

[0057] Specifically, the data analysis module sets a two-dimensional spatial coordinate system for the area where the vehicle is located according to the initial position data of the vehicle collected by the ranging module and according to the target object.

[0058] Three targets are set in the detection site, and a two-dimensional space coordinate system is set according to the positions of the three targets. The targets are set as the first target B1, the second target B2, and the third target B3 in sequence. The position of the first target B1 is set as the origin of the two-dimensional space coordinate system, the position of the first target B1 is connected with the position of the second target B2 to obtain a connecting line B1 B2, and the straight line where the connecting line B1 B2 is located is set as the X-axis of the two-dimensional space coordinate system, the position of the first target B1 is connected with the position of the third target B3 to obtain a connecting line B1 B3, and the straight line where the connecting line B1B3 is located is set as the Y-axis of the two-dimensional space coordinate system, and the data analysis unit generates the vehicle initial position Aa1 in the two-dimensional space coordinate system according to the vehicle position information collected by the position marking module.

[0059] By setting three targets at different positions, a two-dimensional space coordinate system is set for the area where the vehicle is located, the first target is used as the origin of the two-dimensional space coordinate system, the straight line where the connecting line between the first target and the second target is located is used as the X-axis of the two-dimensional space coordinate system, and the straight line where the connecting line between the first target and the third target is located is used as the Y-axis of the two-dimensional space coordinate system. This can ensure that the position marking module can mark the position of the vehicle at any time, avoiding deviations in the analysis results due to inaccurate vehicle position when analyzing the vehicle's route.

[0060] Specifically, the data analysis module generates a vehicle travel route for the vehicle after turning according to the vehicle steering angle data collected by the steering angle detection module and the vehicle position data collected by the position marking module.

[0061] The data analysis unit sets the vehicle position cycle detection time Ta, when the first detection cycle is Ta1, the marking module detects the vehicle position as Aa1, when the second detection cycle is Ta2, the marking module detects the vehicle position as Aa2, ..., when the nth detection cycle is Tan, the marking module detects the vehicle position as Aan,

[0062] The data analysis module generates a vehicle travel route curve Fa in a two-dimensional space coordinate system according to the vehicle position and the vehicle steering angle C1 detected in each vehicle detection cycle.

[0063] Connect each detection position to obtain a first connection line a1, a second connection line a2, a third connection line a3, ..., an nth connection line an,

[0064] The slope Ka1 of the first connecting line a1 on the curve Fa is calculated according to the steering angle detection module, Ka1=Ca1×q1, wherein Ca1 is the steering angle of the vehicle on the first connecting line a1, and q1 is a compensation parameter for the influence of the steering angle of the vehicle on the first connecting line a1 on the slope of the first connecting line a1 on the curve Fa;

[0065] The steering angle detection module calculates the slope Ka2 of the second connecting line a2 on the curve Fa, Ka2=Ca2×q1, where Ca2 is the steering angle of the vehicle on the second connecting line a2;

[0066] The steering angle detection module calculates the slope Kan of the nth connecting line an on the curve Fa, Kan=Can×q1, wherein Can is the steering angle of the vehicle on the nth connecting line a2.

[0067] The data analysis module confirms the steering angle of the vehicle at each periodic detection time according to the vehicle steering angle data collected by the steering angle detection module, and confirms the vehicle position at each periodic detection time according to the vehicle position data collected by the position marking module. According to the vehicle steering angle at each periodic detection time and the position of the vehicle in the two-dimensional coordinate system, the vehicle route after the vehicle turns can be simulated and generated in real time, avoiding inaccurate real-time simulation and generation of the vehicle route after the vehicle turns due to excessive vehicle speed, and ensuring that the vehicle route can be completely restored.

[0068] Specifically, the data analysis module generates a vehicle simulation route according to a preset vehicle steering angle and an initial position of the vehicle in a two-dimensional space coordinate system.

[0069] The initial steering angle of the vehicle collected by the steering angle detection module is C1, the initial position of the vehicle collected by the position marking module is Aa1, and the data analysis module simulates the vehicle route to generate a vehicle simulation route curve Fb in a two-dimensional space coordinate system.

[0070] The data analysis module simulates the vehicle simulation route according to a preset vehicle steering angle and the initial position of the vehicle in a two-dimensional space coordinate system. When simulating according to the vehicle steering angle, the initial steering angle of the vehicle is obtained to avoid deviations in comparison results caused by a large difference between a subsequently simulated vehicle simulation route and the vehicle's travel route due to changes in the initial steering angle of the vehicle. Simulating the subsequent vehicle simulation route of the vehicle according to the initial position of the vehicle can ensure that the initial position of the vehicle is consistent with the vehicle's travel route, thereby avoiding large differences between the vehicle simulation route and the vehicle's travel route due to inconsistent initial positions of the vehicle.

[0071] Specifically, the data analysis unit compares the moving distance of the vehicle on the route after the vehicle turns with the moving distance of the vehicle on the simulated route, and determines whether to adjust the safety distance of radar detection within the standard deviation range according to the comparison result.

[0072] The data analysis module extracts the vehicle simulation route curve Fb and the vehicle travel route curve Fa, and the distance measurement module obtains the moving distance of the vehicle simulation route curve Fb, where the vehicle simulation route moving distance is Lb and the vehicle travel route moving distance is La, and compares the absolute value of the difference between the vehicle simulation route moving distance and the vehicle travel route moving distance with a preset standard deviation value.

[0073] Set the first standard distance difference value Ln1, the first standard distance difference value Ln2,

[0074] If |Lb-La|≤Ln1, the detection distance of the radar detection module is not adjusted;

[0075] If |Lb-La|<|Lb-La|≤Ln2, the vehicle steering wheel steering angle adjustment value and the vehicle tire steering angle adjustment value are adjusted;

[0076] If |Lb-La|>Ln2, the detection distance of the radar detection module is adjusted;

[0077] When |Lb-La|>Ln2, the data analysis module adjusts the initial vehicle safety distance detected by the radar detection module. The initial vehicle safety distance detected by the radar detection module is Lq, and the vehicle safety distance adjusted by the radar detection module is Lq1=D / |Lb-La|×e1, wherein D is the adjustment constant, and e1 is the compensation parameter for the influence of the absolute value of the difference between the length of the vehicle simulation route and the length of the vehicle travel route on the vehicle safety distance adjusted by the radar detection module.

[0078] The data analysis unit compares the moving distance of the vehicle on the vehicle's route after the vehicle turns with the moving distance of the vehicle's simulated route. If the absolute value of the difference between the moving distance of the vehicle on the vehicle's route and the moving distance of the vehicle's simulated route is less than or equal to the first standard distance difference, the detection distance of the radar detection module is not adjusted, which can ensure that the difference between the moving distance of the vehicle on the vehicle's route and the moving distance of the vehicle's simulated route is within the preset conditions, and the absolute value of the difference is small, which has little impact on the vehicle's route; if the absolute value of the difference between the moving distance of the vehicle on the vehicle's route and the moving distance of the vehicle's simulated route is greater than the first standard distance difference and less than or equal to the second standard distance difference, the vehicle steering wheel steering angle adjustment value and The vehicle tire steering angle adjustment value is adjusted, and the steering angle can be continuously adjusted during the vehicle's travel to ensure that the vehicle is on a safe travel track, avoiding danger caused by small angle deviations during vehicle travel; if the absolute value of the difference between the vehicle's moving distance on the vehicle's travel route and the vehicle's simulated route is greater than the second standard distance difference, the data analysis module adjusts the initial detection of the vehicle safety distance by the radar detection module. In the case where the absolute value of the difference between the vehicle's moving distance on the vehicle's travel route and the vehicle's simulated route is large, the vehicle safety distance adjusted by the radar detection module is reduced, which can avoid danger when the vehicle deviates too much from the predetermined track during travel, thereby ensuring normal and safe driving of the vehicle.

[0079] Specifically, the data analysis unit obtains arbitrary positions of the vehicle's traveling route and the vehicle's simulated route at the same time, and analyzes the distance between two arbitrary positions, and adjusts the steering angle adjustment value of the vehicle's steering wheel according to the analysis result.

[0080] The data analysis unit obtains any detection time Tai, i=1, 2, 3, ..., n, and obtains the vehicle travel route position and the vehicle simulation route position corresponding to the any detection time Tai respectively.

[0081] The vehicle route position corresponding to any detection time Tai is Aai, and the vehicle simulation route position corresponding to any detection time Tai is Abi.

[0082] Set the first standard distance difference Lz1 and the second standard distance difference Lz2,

[0083] The data analysis unit calculates the distance between the vehicle travel route position Aai corresponding to any detection time Tai and the vehicle simulation route position Abi corresponding to any detection time Tai in the two-dimensional space coordinate system according to the distance measurement module, and the distance is Ly,

[0084] When Ly<Lz1, the control unit does not adjust the steering angle adjustment value of the vehicle steering wheel;

[0085] When Lz1≤Ly<Lz2, the control module adjusts the steering angle adjustment value of the vehicle steering wheel;

[0086] When Ly≥Lz2, the control unit performs feedback adjustment on the radar detection module;

[0087] Set the maximum value Ct2 of the vehicle steering wheel angle adjustment value.

[0088] If Lz1≤Ly<Lz2, the vehicle steering wheel steering angle adjustment value Ct=Ly×k1, wherein k1 is a compensation parameter for the influence of the distance between any vehicle's travel route position and the vehicle's simulated route position on the vehicle steering wheel angle adjustment value;

[0089] Until Ly<Lz1 is adjusted. If it cannot be adjusted, adjust the vehicle tire steering angle adjustment value.

[0090] The data analysis unit obtains the positions of the vehicle route and the vehicle simulation route at the same time, analyzes the distance between the two positions, adjusts the steering angle adjustment value of the vehicle steering wheel according to the analysis result, obtains the vehicle route position and the vehicle simulation route position corresponding to any detection time, respectively, can ensure the accuracy of the comparison result, avoids obtaining the vehicle route position corresponding to different detection times resulting in inaccurate distance between the measured vehicle route position and the vehicle simulation route position, ensures the accuracy of the vehicle position data, if the vehicle route and the vehicle simulation route have the same vehicle position distance at the same time less than the first standard distance difference, the control unit does not adjust the vehicle direction. The control module adjusts the steering wheel steering angle adjustment value to ensure the stability of the vehicle position distance at the same time, and no adjustment is needed; if the vehicle position distance at the same time as the vehicle simulation route is greater than or equal to the first-class standard distance difference and is less than the second-class standard distance difference, the control module adjusts the vehicle steering wheel steering angle adjustment value to ensure that the vehicle adjusts the driving state in time when it deviates slightly from the specified route during the steering process, so as to avoid more serious deviation during driving; if the vehicle position distance at the same time as the vehicle simulation route is greater than or equal to the second-class standard distance difference, the control unit performs feedback adjustment on the radar detection module, which can avoid the vehicle steering angle being too large during driving and causing the vehicle to lose control.

[0091] Specifically, the data analysis unit adjusts the vehicle tire steering angle adjustment value based on the adjusted vehicle steering wheel steering angle adjustment value.

[0092] When the vehicle steering wheel steering angle adjustment value Ct is equal to the maximum value Ct2 of the vehicle steering wheel steering angle adjustment value, and Ly is still less than the first standard distance difference Lz1,

[0093] The data analysis module controls the control module to adjust the vehicle tire steering adjustment value,

[0094] Set the vehicle tire steering first adjustment value Lt1,

[0095] The vehicle tire steering adjustment value Lt, Lt = Ct × c2, where c2 is the compensation parameter for the influence of the vehicle steering wheel steering angle adjustment value Ct on the vehicle tire steering adjustment value,

[0096] When Lt=Lt1, the vehicle steering wheel steering angle adjustment value is the maximum value, and the vehicle steering wheel steering angle is no longer adjusted.

[0097] The data analysis unit adjusts the vehicle tire steering angle adjustment value based on the adjusted vehicle steering wheel steering angle adjustment value result, which can avoid adjusting the vehicle tire steering angle adjustment value when the vehicle steering wheel steering angle adjustment value is adjusted to the maximum value, thereby ensuring the accuracy of vehicle steering, and setting the first vehicle tire steering adjustment value to the maximum vehicle tire steering adjustment value to avoid dangerous situations caused by excessive vehicle steering angles.

[0098] Specifically, the control module controls the vehicle to make a second turn, and the data analysis unit compares the moving distance of the vehicle's travel route and the moving distance of the vehicle's simulated route for a second time, and performs feedback adjustment on the safety distance of the radar detection module according to the comparison result.

[0099] If |Lb`-La`|≤Ln1, the detection distance of the radar detection module is not adjusted, wherein La` is the moving distance of the vehicle's second travel route; Lb` is the moving distance of the vehicle's second simulated route,

[0100] If |Lb`-La`|>Ln2, the detection distance of the radar detection module is feedback-adjusted, and the vehicle safety distance after feedback-adjustment by the radar detection module is Lq1`=D / |Lb`-La`|×e1.

[0101] Specifically, the data analysis module performs a second adjustment on the steering angle adjustment value of the vehicle steering wheel according to the safety distance of the radar detection module after feedback adjustment.

[0102] The second steering angle adjustment value of the vehicle steering wheel Ct`=Ly`×k1, where Ly` is the distance between the second travel route position of the vehicle at the same position at any time and the second simulated route position of the vehicle,

[0103] Specifically, the data analysis module determines whether to adjust the steering angle adjustment value of the vehicle tire for the second time according to the second adjustment result of the steering wheel steering angle adjustment value by the control module.

[0104] The second steering angle adjustment value of the vehicle tire is Lt`=Ct`×c2.

[0105] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0106] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-source data analysis intelligent automobile detection device, characterized in that: include, A position marking module, used for marking the position of the vehicle; A distance measurement module is used to measure the distance traveled by the vehicle; Steering angle detection module, used for real-time detection of the vehicle's steering angle; Radar detection module, used to monitor the preset safety distance around the vehicle; A steering wheel angle detection module is used to detect the steering angle of the steering wheel; A tire steering angle detection module is used to detect the tire steering angle; A control module for controlling the steering angle of the steering wheel and tires; a data analysis module, which is connected to the position marking module, the distance measuring module, the steering angle detection module, the radar detection module, the steering wheel angle detection module, the tire steering angle detection module and the control module, and is used to analyze the data collected by each module and verify the radar detection module according to the analysis results; Adjust the steering wheel angle detection module and the tire steering angle detection module according to the verification results; The safety distance detection range of the radar detection module is adjusted again according to the vehicle steering comparison results.

2. The multi-source data analysis intelligent automobile detection device according to claim 1 is characterized in that: The data analysis module sets a two-dimensional space coordinate system for the area where the vehicle is located according to the initial position data of the vehicle collected by the distance measurement module and according to the target object.

3. The multi-source data analysis intelligent automobile detection device according to claim 2 is characterized in that: The data analysis module generates a vehicle travel route for the vehicle after turning according to the vehicle steering angle data collected by the steering angle detection module and the vehicle position data collected by the position marking module.

4. The multi-source data analysis intelligent automobile detection device according to claim 3 is characterized in that: The data analysis module generates a vehicle simulation route according to a preset vehicle steering angle and an initial position of the vehicle in a two-dimensional space coordinate system.

5. The multi-source data analysis intelligent automobile detection device according to claim 4 is characterized in that: The data analysis unit compares the moving distance of the vehicle on the route after the vehicle turns with the moving distance of the vehicle on the simulated route, and determines whether to adjust the safety distance of radar detection within the standard deviation range according to the comparison result.

6. The multi-source data analysis intelligent automobile detection device according to claim 5 is characterized in that: The data analysis unit obtains the same time positions of the vehicle's traveling route and the vehicle's simulated route respectively, and analyzes the distance between the two positions, and adjusts the steering angle adjustment value of the vehicle's steering wheel according to the analysis result.

7. The multi-source data analysis intelligent automobile detection device according to claim 6 is characterized in that: The data analysis unit adjusts the vehicle tire steering angle adjustment value based on the adjusted vehicle steering wheel steering angle adjustment value.

8. The multi-source data analysis intelligent automobile detection device according to claim 7 is characterized in that: The control module controls the vehicle to make a second turn, and the data analysis unit compares the moving distance of the vehicle's travel route and the moving distance of the vehicle's simulated route for a second time, and performs feedback adjustment on the safety distance of the radar detection module according to the comparison result.

9. The multi-source data analysis intelligent automobile detection device according to claim 8, characterized in that: The data analysis module performs a second adjustment on the steering angle adjustment value of the vehicle steering wheel according to the safety distance of the radar detection module after feedback adjustment.

10. The multi-source data analysis intelligent automobile detection device according to claim 9, characterized in that: The data analysis module determines whether to adjust the steering angle adjustment value of the vehicle tire for the second time according to the second adjustment result of the steering wheel steering angle adjustment value by the control module.

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