A deviation-preventing device and a deviation-preventing method

Abstract

The application provides a deviation preventing device and method, and relates to the technical field of braking. The device comprises a first detection component, a second detection component, a control component and two energy absorbing components. The energy absorbing component comprises a brake component and a blocking component. The brake component is used to control the extension length of the blocking component, and the blocking component is used to be connected with a blocking object. The control component is electrically connected with the first detection component, the second detection component and the brake component. The first detection component is used to detect the displacement of the blocking component, the control component is used to obtain the standard displacement of the blocking object, and the second detection component is used to detect the deceleration and speed of the blocking object. The control component is also used to obtain the relative offset according to the ratio of the displacement of the blocking component and the standard displacement of the blocking object. Thus, the application controls the brake force of the brake component on the blocking component according to the relative offset, adjusts the extension length of the blocking component, and realizes the deviation correction of the blocking object, which has high adaptability.

Description

Technical Field

[0001] This application relates to the field of braking technology, and in particular to an anti-drift device and method. Background Technology

[0002] During the deceleration and braking process of the object being intercepted, it is difficult to achieve perfect centering. In order to prevent the object from deviating from the expected taxiing track or even leaving the runway during the interception process, which could cause damage to the object and injuries to personnel, a deviation correction device is required.

[0003] In existing technology, steel wire ropes are installed on both sides of the object to be blocked, and the steel wire ropes on both sides share a set of buffer blocking device. The object to be blocked is corrected by mechanically synchronizing the length of the steel wire ropes.

[0004] However, the aforementioned buffer and arresting devices require the excavation of a pit directly below the runway, which has high application requirements and poor adaptability. Summary of the Invention

[0005] This application provides an anti-deviation device and method to solve the problem that existing deviation correction devices require excavation of a foundation pit directly below the runway, have high application requirements, and poor adaptability.

[0006] To achieve the above objectives, the technical solution of this application is as follows:

[0007] On one hand, this application provides an anti-deviation device, including a first detection component, a second detection component, a control component, and two energy-absorbing components; the energy-absorbing component includes a braking component and a blocking component, the braking component is connected to the blocking component and controls the extension length of the blocking component, the blocking component is used to connect to the blocked object to brake the blocked object; the control component is electrically connected to the first detection component, the second detection component, and the braking component; the first detection component is used to detect the displacement of the blocking component, the control component is used to obtain the standard displacement of the blocked object based on the displacement of the blocking component, the second detection component is used to detect the deceleration and velocity of the blocked object; the control component is also used to obtain the relative offset based on the ratio of the displacement of the blocking component to the standard displacement of the blocked object; the control component is also used to control the braking force of the braking component to adjust the extension length of the blocking component based on the relative offset, the deceleration of the blocked object, or the velocity of the blocked object.

[0008] In some possible implementations, the energy-absorbing component of the anti-deviation device provided in this application further includes a guide member, which is used to connect with the blocking member to adjust the direction of the blocking member.

[0009] In some possible implementations, the anti-deviation device provided in this application also includes a stop cable. The stop cable includes a nylon belt, one end of which is wound around the brake element, and the other end is connected to the stop cable. The stop cable is used to connect to the object being stopped.

[0010] In some possible implementations, the anti-deviation device provided in this application further includes an adapter for connecting the nylon belt and the arresting cable.

[0011] On the other hand, this application also provides a method for preventing deviation, used in any of the above-mentioned anti-deviation devices, comprising: obtaining the displacement of the blocking member; obtaining the standard displacement of the blocking object; obtaining a relative offset, wherein the relative offset is the ratio of the displacement of the blocking member to the standard displacement of the blocking object; determining whether the blocking object has deviated based on the relative offset; and if the blocking object has deviated, the braking member controls the extension length of the blocking member based on the relative offset.

[0012] In some possible implementations, the anti-deviation method provided in this application determines whether the object being blocked has deviated based on the relative offset, including: if the relative offset is greater than or less than a preset value, the object being blocked has deviated; if the relative offset is equal to the preset value, the object being blocked has not deviated.

[0013] In some possible implementations, the anti-deviation method provided in this application, if the object being blocked deviates, controls the extension length of the blocking component using a braking component, including: when the relative deviation is greater than a preset value, the braking component where the longer-extended blocking component is located increases the braking force to make the deceleration curvature of the object being blocked greater than zero, and the extension lengths of the blocking components on both sides of the object being blocked are equal; when the relative deviation is less than a preset value, the braking component where the shorter-extended blocking component is located decreases the braking force to make the deceleration curvature of the object being blocked less than zero, and the extension lengths of the blocking components on both sides of the object being blocked are equal.

[0014] In some possible implementations, the anti-deviation method provided in this application obtains the relative offset by: obtaining the velocity of the obstructing object; and obtaining the deceleration of the obstructing object.

[0015] In some possible implementations, the anti-deviation method provided in this application further includes, after the object being blocked has not deviated, obtaining the deceleration of the object being blocked, wherein when the deceleration of the object being blocked is less than or equal to the target deceleration value, the braking force of the braking component increases with the increase of the displacement of the blocking component, wherein the target deceleration value is less than the maximum deceleration value.

[0016] In some possible implementations, the anti-deviation method provided in this application, when the blocked object does not deviate, further includes: obtaining the speed of the blocked object; when the speed of the blocked object is less than or equal to the target speed value, calculating the braking force of the brake component 310 according to the following formula: F = K1·(a x2 -K a ·(X-X2) m In the formula, F is the braking force, and K1 is the slope of the deceleration of the object being blocked (10). x2 To decelerate the target, Ka X is the deceleration slope of the object 10 being blocked, X is the displacement of the blocking component 320, X2 is the standard displacement of the object 10 being blocked, and the exponent m is the deceleration of the object 10 being blocked.

[0017] This application provides an anti-deviation device and method, comprising a first detection component, a second detection component, a control component, and two energy-absorbing components. The energy-absorbing components include a braking component and a blocking component, with the braking component connected to the blocking component, and the blocking component used to connect to a blocked object. The control component is electrically connected to the first detection component, the second detection component, and the braking component. The first detection component is used to detect the displacement of the blocking component, the control component is used to obtain the standard displacement of the blocked object, and the second detection component is used to detect the deceleration and velocity of the blocked object. The control component is also used to obtain the relative offset based on the ratio of the displacement of the blocking component to the standard displacement of the blocked object. The relative offset determines whether the object being stopped has deviated. When deviation occurs, the control unit increases or decreases the braking force of the braking component based on the relative offset, adjusting the extension displacement of the stopping component to correct the deviation of the object, causing it to decelerate and move forward in a centered position. When no deviation occurs, the braking force can be adjusted based on the deceleration or velocity of the object, adapting to site requirements, reducing impact inertia, and protecting both the device and the object being stopped. Furthermore, the braking and stopping components can be flexibly arranged according to the site conditions, making it highly adaptable. Therefore, this application uses relative offset to control the braking force of the braking component on the stopping component and adjust the extension length of the stopping component to correct the deviation of the object, demonstrating strong adaptability. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0019] Figure 1 This is a schematic diagram of the anti-deviation device provided in the embodiments of this application;

[0020] Figure 2 for Figure 1 Schematic diagram of the structure of the energy-absorbing component;

[0021] Figure 3 for Figure 1 A schematic diagram of the trajectory of the object being blocked;

[0022] Figure 4 for Figure 1 A schematic diagram of the displacement trajectory of the middle blocking component;

[0023] Figure 5 for Figure 1 A graph showing the relationship between the mid-displacement and the deceleration of the blocked object;

[0024] Figure 6 for Figure 1A graph showing the relationship between the displacement of the middle object and the velocity of the object being blocked.

[0025] Figure 7 for Figure 1 Graph showing the relationship between displacement and braking force;

[0026] Figure 8 This is a flowchart illustrating the anti-deviation method provided in an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10 - Object to be blocked; 20 - Runway;

[0029] 100 - First detection component;

[0030] 200 - Second detection component;

[0031] 300-Energy Absorption Component;

[0032] 310-Brake component; 311-Base; 312-Brake disc; 313-Brake device;

[0033] 320 - Barrier component; 321 - Nylon tape; 322 - Adapter;

[0034] 330 - Guide component; 331 - Guide pulley block; 332 - Pulley block;

[0035] 340 - Barrier cable;

[0036] 350-rewinder;

[0037] 360-clutch;

[0038] 370-Reel Parts;

[0039] 400 - Control components.

[0040] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0041] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0042] It should be noted that in the description of the embodiments of this application, the terms "upper", "lower", "inner", "outer" and other terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description, and are not intended to indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this application.

[0043] Furthermore, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0044] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] As mentioned in the background section, achieving perfect centering during the deceleration and braking of an object is difficult. To prevent the object from deviating from the intended track or even detaching from the runway during the arrest process, causing damage to the object and injuries to personnel, a correction device is needed. In existing technologies, steel cables are often installed on both sides of the object, sharing a common set of buffer arresting devices. The correction of the object is achieved by mechanically synchronizing the length of the steel cables. However, these buffer arresting devices require excavating a pit directly below the runway. Different runways require different pits, resulting in long processing times, high applicability requirements, and poor adaptability. There is an urgent need for a device that can be flexibly deployed and effectively correct the deviation of the object.

[0046] Based on this, this application provides an anti-deviation device and method, including a first detection component, a second detection component, a control component, and two energy-absorbing components; the energy-absorbing component includes a braking component and a blocking component, the braking component is connected to the blocking component, and the blocking component is used to connect to the blocked object; the control component is electrically connected to the first detection component, the second detection component, and the braking component; the first detection component is used to detect the displacement of the blocking component, the control component is used to obtain the standard displacement of the blocked object, the second detection component is used to detect the deceleration and velocity of the blocked object; the control component is also used to obtain the relative offset based on the ratio of the displacement of the blocking component to the standard displacement of the blocked object. The relative offset determines whether the object being stopped has deviated. When deviation occurs, the control unit increases or decreases the braking force of the braking component based on the relative offset, adjusting the extension displacement of the stopping component to correct the deviation of the object, causing it to decelerate and move forward in a centered position. When no deviation occurs, the braking force can be adjusted based on the deceleration or velocity of the object, adapting to site requirements, reducing impact inertia, and protecting both the device and the object being stopped. Furthermore, the braking and stopping components can be flexibly arranged according to the site conditions, making it highly adaptable. Therefore, this application uses relative offset to control the braking force of the braking component on the stopping component and adjust the extension length of the stopping component to correct the deviation of the object, demonstrating strong adaptability.

[0047] The following is combined Figures 1-8 The present application will be described in detail with reference to specific embodiments. Figure 1 This is a schematic diagram of the anti-deviation device provided in the embodiments of this application; Figure 2 for Figure 1 Schematic diagram of the structure of the energy-absorbing component; Figure 3 for Figure 1 A schematic diagram of the trajectory of the object being blocked; Figure 4 for Figure 1 A schematic diagram of the displacement trajectory of the middle blocking component; Figure 5 for Figure 1 A graph showing the relationship between the mid-displacement and the deceleration of the blocked object; Figure 6 for Figure 1 A graph showing the relationship between the displacement of the middle object and the velocity of the object being blocked. Figure 7 for Figure 1 Graph showing the relationship between displacement and braking force; Figure 8 This is a flowchart illustrating the anti-deviation method provided in an embodiment of this application.

[0048] It should be noted that, Figure 1 In the diagram, 10 represents the object being blocked, and 20 represents the runway. Figure 1 The middle arrow indicates the direction of movement of the object 10 being blocked. Figure 1 F represents the resultant braking force, which is opposite to the direction of motion of the object being blocked, 10.

[0049] On one hand, this application provides an anti-deviation device, including a first detection component 100, a second detection component 200, a control component 400, and two energy-absorbing components 300; the energy-absorbing component 300 includes a braking component 310 and a blocking component 320, the braking component 310 is connected to the blocking component 320 and controls the extension length of the blocking component 320, the blocking component 320 is used to connect with the object being blocked to brake the object being blocked; the control component 400 is electrically connected to the first detection component 100, the second detection component 200, and the braking component 310; the first detection component... 100 is used to detect the displacement of the blocking member 320, and the control member 400 is used to obtain the standard displacement of the blocking object 10 based on the displacement of the blocking member 320. The second detection component 200 is used to detect the deceleration and velocity of the blocking object. The control member 400 is also used to obtain the relative offset based on the ratio of the displacement of the blocking member 320 to the standard displacement of the blocking object 10. The control member 400 is also used to control the braking force of the braking member 310 to adjust the extension length of the blocking member 320 based on the relative offset, the deceleration of the blocking object, or the velocity of the blocking object.

[0050] In practice, at least two energy-absorbing components 300 are symmetrically arranged on both sides of the object being blocked 10, and their arrangement can be flexibly adjusted according to the width of the runway 20 where the object being blocked 10 is located. Each energy-absorbing component 300 includes a braking component 310 and a blocking component 320. One end of the blocking component 320 is wound around the braking component 310, and the other end is connected to the object being blocked 10. The braking component 310 provides braking force to control the extension displacement of the blocking component 320 and brake the object being blocked 10.

[0051] The control unit 400 is electrically connected to the first detection component 100, the second detection component 200, and the braking component 310. The first detection component 100 is used to detect the displacement of the blocking component 320. The control unit 400 is used to obtain the standard displacement of the blocking object 10 based on the displacement of the blocking component 320. The second detection component 200 is used to detect the deceleration and velocity of the blocking object. The first detection component 100 can be a displacement sensor or a meter counter; the second detection component 200 can be an encoder. It should be noted that the control unit 400 can calculate the standard displacement of the blocking object 10 based on the displacement of the blocking component 320 detected by the first detection component 100 using trigonometric functions. Figure 3 According to the Law of Cosines, cosα==O1A 2 +O2A 2 -O1O2 2 / 2O1A·O2A, where O1A and O2A represent the displacement of the blocking member 320, O1O2 is the distance between the two blocking members 320, and α is the blocking angle, i.e., the angle between O1A and O2A. Since sinα 2 =1-cosα 2The area S of triangle O1O2A is S = 1 / 2·O1A·O2A·sinα = 1 / 2·O1O2·AO; we can find AO = O1A·O2A·sinα / O1O2. In this formula, AO is the standard displacement of the blocking object 10, O1A and O2A are the displacements of the blocking components 320, and O1O2 is the distance between the two blocking components 320. It should be noted that AO is the perpendicular line of triangle O1O2A.

[0052] In some embodiments, the control element 400 may be a proportional pressure reducing valve, and this application does not limit this.

[0053] To facilitate determining whether the blocking object 10 has deviated, a relative offset can be set. The relative offset is the ratio of the displacement of the blocking member 320 to the standard displacement of the blocking object 10. Using the relative offset to determine whether deviation has occurred, for example, assuming the ratio of the displacement of the blocking member 320 to the standard displacement of the blocking object 10 is 1, the blocking object 10 has not deviated. When the relative offset is >1 or <1, ​​deviation has occurred. It should be noted that when the relative offset is >1, it indicates that the blocking object 10 is far away from the braking member 310, and the extension displacement of the blocking member 320 is relatively large; when the relative offset is <1, it indicates that the blocking object 10 is close to the braking member 310, and the extension displacement of the blocking member 320 is relatively short.

[0054] If the object 10 deviates, the braking element 310 controls the extension length of the blocking element 320 according to the relative deviation to correct the deviation of the object 10. For example, when the relative deviation is greater than a preset value, the braking element 310 where the longer blocking element 320 is located increases the braking force to make the deceleration curvature of the object 10 greater than zero, so that the extension lengths of the blocking elements 320 on both sides of the object 10 are equal; when the relative deviation is less than the preset value, the braking element 310 where the shorter blocking element 320 is located decreases the braking force to make the deceleration curvature of the object 10 less than zero, so that the extension lengths of the blocking elements 320 on both sides of the object 10 are equal.

[0055] In some embodiments, the blocking member 320 can be a tape roll, and the relative offset can also be expressed as the ratio of the actual displacement increment of the tape roll to the ideal displacement increment of the tape roll, combined with... Figure 3 and Figure 4When misalignment occurs, for example, when the blocking point O' deviates from the center point O, the blocked object 10 moves to point A within time unit T1, at which point the tape extension length is MA. In the next time unit T1, it moves to point B, at which point the tape extension length is NB. Assuming that when blocking is at the center point O, the tape extension length YC = MA is equal within time unit T1. In the next time unit T1, it moves to point D, with a corresponding tape extension length of ZD. The relative offset is taken as x = NB / ZD, where NB is the actual displacement increment of the tape, and ZD is the ideal displacement increment. x = 1 indicates a deviation of 0, x > 1 indicates the deviation direction is away from the brake element 310, and x < 1 indicates the deviation direction is close to the brake element 310.

[0056] The anti-deviation device in this embodiment includes a first detection component 100, a second detection component 200, a control component 400, and two energy-absorbing components 300. The energy-absorbing component 300 includes a braking component 310 and a blocking component 320, with the braking component 310 connected to the blocking component 320, which is used to connect to the object being blocked. The control component 400 is electrically connected to the first detection component 100, the second detection component 200, and the braking component 310. The first detection component 100 is used to detect the displacement of the blocking component 320, the control component 400 is used to obtain the standard displacement of the object being blocked, and the second detection component 200 is used to detect the deceleration and velocity of the object being blocked. The control component 400 is also used to obtain the relative offset based on the ratio of the displacement of the blocking component 320 to the standard displacement of the object being blocked. The relative offset determines whether the object being blocked has deviated. When deviation occurs, the control unit 400 increases or decreases the braking force of the braking unit 310 based on the relative offset, and adjusts the extension displacement of the blocking unit 320 to correct the deviation of the object 10, causing it to decelerate and move forward in a centered position. When no deviation occurs, the braking force can be adjusted based on the deceleration or speed of the object 10 to regulate the extension displacement of the blocking unit 320, adapting to site requirements, reducing impact inertia, and protecting both the device and the object 10. Furthermore, the braking unit 310 and the blocking unit 320 can be flexibly arranged according to the site conditions, making them highly adaptable. Therefore, this application controls the braking force of the braking unit 310 on the blocking unit 320 and adjusts the extension length of the blocking unit 320 by controlling the relative offset, thereby correcting the deviation of the object 10 and demonstrating strong adaptability.

[0057] In some embodiments, the energy-absorbing component 300 of the anti-deviation device provided in this application further includes a guide 330, which is used to connect with the blocking component 320 to adjust the direction of the blocking component 320.

[0058] In practice, to facilitate the adjustment of the extension angle and direction of the blocking member 320, a guide member 330 is added between the braking member 310 and the blocking member 320. The blocking member 320 extends from the braking member 310, passes through the guide member 330, and is used to connect with the blocking object 10.

[0059] In some embodiments, combined with Figure 1 and Figure 2 The guide member 330 includes a guide pulley assembly 331 and a pulley assembly 332. The guide pulley assembly 331 includes two pulleys, which are vertically arranged to convert the blocking member 320 from a horizontal direction to a vertical direction. In addition, the two pulleys can be made of lightweight materials such as aluminum alloy to reduce inertia. A pulley assembly 332 is also provided between the guide member 330 and the object being blocked. The pulley assembly 332 can also have two pulleys. For example, the blocking member 320 passes between the two pulleys and bypasses one of the pulleys to connect with the blocking assembly 100. The pulley assembly 332 can also have three pulleys arranged in an isosceles right triangle. This application does not limit the number of pulleys.

[0060] In some other embodiments, the anti-deviation device provided in this application also includes a blocking cable 340. The blocking member 320 includes a nylon strip 321 and a blocking cable 340. One end of the nylon strip 321 is wrapped around the brake member 310, and the other end is connected to the blocking cable 340. The blocking cable 340 is used to connect to the blocking object 10.

[0061] In practice, one end of the nylon belt 321 is wound around the brake member 310, and the other end is used to connect with the arresting cable 340. One end of the arresting cable 340 is connected to the object being stopped 10, and the other end is used to connect with the nylon belt 321.

[0062] It should be noted that the specific structure of the braking component 310 can be selected according to the specific application scenario, and this application does not impose any restrictions on it. For example, in conjunction with... Figure 1 and Figure 2 The nylon tape 321 is wound around the reel 370. The braking component 310 includes a base 311, a brake disc 312, and a brake 313. The brake 313 is mounted on the base 311. The brake disc 312 is connected to the reel 370. The brake 313 clamps the brake disc 312 to brake it. For example, the brake 313 abuts against the brake disc, causing the brake disc to rotate slowly or even stop. When the brake 313 disengages from the brake disc, the brake disc rotates faster. The brake disc is coaxially connected to the reel 370. The brake disc adjusts the rotation speed of the reel 370 by its own rotation speed, thereby controlling the extension speed of the nylon tape 321 and achieving braking of the object being blocked. It should be noted that the reel 370 can be a reel made of carbon fiber material.

[0063] Furthermore, a rewinding component 350 and a clutch component 360 may be provided between the braking component 310 and the reel component 370. The rewinding component 350 and the reel component 370 are coaxially connected. The rewinding component 350 drives the reel component 370 to retract the nylon belt 321 into the reel component 370. The clutch component 360 is provided between the rewinding component 350 and the reel component 370 to disengage or engage the rewinding component 350 with the reel component 370. It should be noted that the clutch component 360 can be a ratchet mechanism or a clutch, and this application is not limited to this.

[0064] The anti-deviation device provided in this application includes an adapter 322 in the blocking component 320, which is used to connect the nylon belt 321 and the blocking cable 340.

[0065] To facilitate the connection between the nylon tape 321 and the arresting cable 340, an adapter 322 is also provided, through which the nylon tape 321 and the arresting cable 340 are connected. The adapter 322 corresponds one-to-one with the nylon tape 321, and each energy-absorbing component 300 corresponds to at least one adapter 322 and one nylon tape 321. Two energy-absorbing components 300 can share one arresting cable 340. This application does not limit the specific structure of the adapter 322; for example, the adapter is annular, such as... Figure 1 As shown.

[0066] On the other hand, this application also provides a method for preventing deviation. Any of the above-mentioned anti-deviation devices includes: S101, obtaining the displacement of the blocking member 320; S102, obtaining the standard displacement of the blocking object 10; S103, obtaining the relative offset, the relative offset being the ratio of the displacement of the blocking member 320 to the standard displacement of the blocking object 10, and determining whether the blocking object 10 has deviated; S104, if the blocking object 10 has deviated, the braking member 310 controls the extension length of the blocking member 320 according to the relative offset.

[0067] In specific implementation, the displacement of the barrier 320 is detected by the first detection component 100. Since the barrier 320 is set on both sides of the barrier object 10, the barrier 320, the barrier object 10 and the runway 20 form a triangle. The control component 400 can calculate the standard displacement of the barrier object 10 based on the displacement of the barrier 320 on both sides and the trigonometric function.

[0068] To facilitate the determination of whether the object being blocked 10 has shifted, a relative offset is defined. The relative offset is the ratio of the displacement of the blocking component 320 to the standard displacement of the object being blocked 10. The relative offset is then compared with a preset value to determine whether the object being blocked 10 has shifted.

[0069] It should be noted that the relative offset can also be limited based on the ratio of the actual displacement increment to the ideal displacement increment of the blocking component 320 within the same time period T1, such as... Figure 4 As shown, the relative offset x = NB / ZD is taken, where NB is the actual displacement increment of the tape and ZD is the ideal displacement increment of the tape. x = 1 indicates that the deviation is 0 and the obstruction object 10 decelerates forward in the center. x > 1 indicates that the eccentric direction is away from the brake 310 and x < 1 indicates that the eccentric direction is close to the brake 310.

[0070] When the object being blocked 10 deviates, the relative offset amount needs to be obtained, and the braking member 310 controls the extension length of the blocking member 320 based on the relative offset amount. For example, in conjunction with... Figures 1-8 The preset value is 1. When the relative offset is greater than 1, the braking pressure is increased at the longer end of the blocking member 320, making the curvature K1 of the speed bump of the blocking object 10 greater than zero. This causes the blocking member 320 to extend slowly or stop extending, thus making the longer and shorter blocking members 320 approach equal. When the relative offset is less than 1, the braking pressure is decreased at the shorter end of the blocking member 320, making the curvature K1 of the speed bump of the blocking object 10 less than zero. This causes the blocking member 320 to extend rapidly, making the longer and shorter blocking members 320 approach equal. It should be noted that the preset value can be determined based on existing experience or actual needs, and this application does not impose any restrictions on this.

[0071] The anti-deviation method in this embodiment detects the displacement of the blocking member 320 by the first detection component 100, obtains the standard displacement of the blocked object 10 based on the displacement of the blocking member 320, defines the relative offset by the ratio of the displacement of the blocking member 320 to the standard displacement of the blocked object 10, and determines whether the blocked object 10 has deviated based on the relative offset, that is, compares the relative offset with a preset value to determine whether it deviates from the preset value. When deviation occurs, the braking member 310 increases or decreases the braking force according to the relative offset, adjusts the extension displacement of the blocking members 320 on both sides of the blocked object 10, and corrects the deviation of the blocked object 10, so that the blocked object 10 is centered and decelerates forward. In addition, the braking member 310 and the blocking member 320 can be flexibly arranged and have strong applicability.

[0072] In some embodiments, the anti-deviation method provided in this application, S103, determines whether the blocking object 10 has deviated based on the relative offset, including: if the relative offset is greater than or less than a preset value, the blocking object 10 has deviated; if the relative offset is equal to the preset value, the blocking object 10 has not deviated.

[0073] In some embodiments, the anti-deviation method provided in this application, S104, if the object to be blocked 10 deviates, the braking member 310 controls the extension length of the blocking member 320, including: when the relative deviation is greater than a preset value, the braking member 310 where the longer-extended blocking member 320 is located increases the braking force so that the deceleration curvature of the object to be blocked 10 is greater than zero, and the extension lengths of the blocking members 320 on both sides of the object to be blocked 10 are equal; when the relative deviation is less than a preset value, the braking member 310 where the shorter-extended blocking member 320 is located decreases the braking force so that the deceleration curvature of the object to be blocked 10 is less than zero, and the extension lengths of the blocking members 320 on both sides of the object to be blocked 10 are equal.

[0074] In practice, when the relative offset is greater than a preset value, the braking force of the braking element 310, where the longer blocking element 320 is located, increases to make the deceleration curvature of the blocked object 10 greater than zero, causing the blocking element 320 to extend slowly or stop extending, thereby making the extension lengths of the longer and shorter blocking elements 320 tend to be equal, allowing the blocked object 10 to move forward in the center. When the relative offset is less than a preset value, the braking force of the braking element 310, where the shorter blocking element 320 is located, decreases to make the deceleration curvature of the blocked object 10 less than zero, causing the blocking element 320 to extend rapidly, making the extension lengths of the longer and shorter blocking elements 320 tend to be equal, allowing the blocked object 10 to move forward in the center.

[0075] In some embodiments, the anti-deviation method provided in this application, which obtains the relative offset, includes: obtaining the velocity of the blocking object 10; and obtaining the deceleration of the blocking object 10.

[0076] In specific implementation, the second detection component 200 is used to acquire the speed and deceleration of the obstructing object 10. The second detection component 200 can be a rotary encoder.

[0077] It should be noted that the included angle of the barrier is as follows: Figure 1 The angle α shown is formed by the two sides of the blocking member 320 and the vertex of the object being blocked 10. When the blocking angle just contacts the object being blocked 10, the blocking angle is approximately equal to 180 degrees. As the object being blocked 10 decelerates, the blocking angle gradually decreases. According to the physical formula for resultant force, where F is the resultant braking force, F1 is the braking force of the blocking member 320, and α is the blocking angle, the blocking angle is relatively large in the initial stage, and the resultant braking force is relatively small, which is the low braking zone. As the object being blocked 10 decelerates, the blocking angle decreases, and the resultant braking force increases, which is the high braking zone.

[0078] In the low braking zone, that is, when the blocking angle is less than or equal to the preset angle value, or when the standard displacement is less than the preset displacement value, the braking force of the braking component 310 gradually increases with the increase of the displacement of the blocking component 320, so that the deceleration of the blocked object 10 increases synchronously and the blocking component is controlled to extend slowly. If the braking force is increased rapidly, the speed of the blocked object 10 is relatively fast, which can easily cause impact and damage to the braking component 310.

[0079] It should be noted that the included angle can be obtained by the control unit 400 calculating the included angle based on the displacement of the two included components 310 and trigonometric functions, or by directly using sensors related to the included angle detection, such as angle sensors, gyroscopes, etc. This application does not impose any restrictions on this.

[0080] In some embodiments, the anti-deviation method provided in this application further includes, after the blocking object 10 has not deviated, obtaining the deceleration of the blocking object 10, wherein when the deceleration of the blocking object 10 is less than or equal to the target deceleration value, the braking force of the braking member 310 increases with the increase of the displacement of the blocking member 320, wherein the target deceleration value is less than the maximum deceleration value.

[0081] In specific implementation, when the blocked object 10 does not deviate, the deceleration of the blocked object 10 is acquired. When the deceleration of the blocked object 10 is less than or equal to the target deceleration value, the braking component 310 increases with the displacement of the blocking component 320. It should be noted that, due to the relationship between the maximum deceleration and the structural strength of the blocked object 10 and the driver's tolerance limit, damage to the blocked object 10 can be avoided and the driver can be protected. There can be a certain threshold between the target deceleration value and the maximum deceleration value to prevent the maximum deceleration from being exceeded during offset control, which could pose a certain danger to the driver and the blocked object 10.

[0082] In some embodiments, the anti-deviation method provided in this application, when the blocking object 10 does not deviate, further includes: obtaining the speed of the blocking object 10; when the speed of the blocking object 10 is less than or equal to the target speed value, calculating the braking force of the braking component 310 according to the following formula: F = K1·(a x2 -K a ·(X-X2) m In the formula, F is the braking force, and K1 is the slope of the deceleration of the object being blocked (10). x2 To decelerate the target, K a X is the deceleration slope of the object 10 being blocked, X is the displacement of the blocking component 320, X2 is the standard displacement of the object 10 being blocked, and the exponent m is the deceleration of the object 10 being blocked.

[0083] It should be noted that when the speed of the object being blocked is less than or equal to the speed of the target, for example... Figure 6V1 indicates that most of the kinetic energy of the object being blocked has been released. Due to the damping characteristics of the nylon belt 321, in order to release its resistance force and prevent it from rebounding and causing the object to move in the opposite direction, the braking force controlled by the brake element 310 decreases as the displacement increases. For example... Figure 7 In the interval (X2, X3), the target deceleration shows a rapid decreasing trend. Figure 5 BC segment.

[0084] In practice, since the target velocity V1 is related to the weight of the object being blocked and the elasticity coefficient of the nylon belt, it can be taken as 5-15 km / h. V is the velocity of the object being blocked. When V < V1, the target deceleration begins to show a rapid decreasing trend. Since the standard displacement X2 is much larger than the runway width at this time, the braking force F can be obtained according to the calculation formula, i.e., F = K1·(a x2 -K a ·(X-X2) m In the formula, F is the braking force, and K1 is the slope of the deceleration of the object being blocked (10). x2 To decelerate the target, K a X is the deceleration slope of the object 10 being blocked, X is the displacement of the blocking component 320, X2 is the standard displacement of the object 10 being blocked, and the exponent m is the deceleration of the object 10 being blocked.

[0085] In addition, in some embodiments, the brake element 310 is coaxially connected to the reel and brakes the reel by means of braking torque. The brake 313 clamps the brake disc 312 to control the brake element 310. The braking force can also be calculated as F = M / R, where M is the braking torque and the braking force F is proportional to the braking pressure P. It should be noted that the braking force F is the braking force of the brake element 310 on the reel, and the braking pressure P is the braking pressure of the brake 310 against the brake maker.

[0086] R is the radius of the tape on the reel. R is inversely proportional to the displacement X of the object being blocked. As the displacement X increases, the tape radius R decreases at a faster rate (the circumference of a single turn decreases). Therefore, the relationship between R and X can be calculated using the inverse proportional function R = R(X).

[0087] Therefore, in the segment (X2, X3), the braking pressure decreases faster than the acceleration a; the braking pressure can be calculated using P = K1·(a). x2 -K a ·(X-X2) m )·R(X).

[0088] In some embodiments, before the blocking member 320 brakes the blocking object 10, the braking member 310 further includes an initial braking force to pre-tension the blocking member 320. Specifically, in order to facilitate a quick and stable connection between the entire device and the blocking object 10, the initial braking force of the braking member 310 is greater than zero, so that the blocking member 320 is pre-tensioned, the blocking member 320 is in a taut state, and the blocking member 320 has a certain ground clearance to facilitate connection with the tail hook of the blocking object 10. On the other hand, it prevents the tail hook from "jumping rope" after it is hooked onto the blocking member 320, resulting in disengagement or premature fatigue damage to the blocking cable.

[0089] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0090] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A device for preventing deviation, characterized in that, It includes a first detection component (100), a second detection component (200), a control component (400), and two energy absorption components (300); The energy-absorbing component (300) includes a braking component (310) and a blocking component (320). The braking component (310) is connected to the blocking component (320) and controls the extension length of the blocking component (320). The blocking component (320) is used to connect with the object to be blocked in order to brake the object. The control unit (400) is electrically connected to the first detection component (100), the second detection component (200), and the braking component (310); The first detection component (100) is used to detect the displacement of the blocking member (320), the control component (400) is used to obtain the standard displacement of the blocking object (10) based on the displacement of the blocking member (320), and the second detection component (200) is used to detect the deceleration and velocity of the blocking object. The control element (400) is also used to obtain a relative offset based on the ratio of the displacement of the blocking element (320) to the standard displacement of the blocking object (10); The control unit (400) determines whether the object being blocked has deviated based on the relative offset. When a deviation occurs, the control unit (400) increases or decreases the braking force of the brake unit (310) according to the relative offset, and adjusts the extension displacement of the blocking member (320). When no deviation occurs, the control unit (400) controls the braking force of the brake unit (310) according to the deceleration or speed of the object being blocked, and adjusts the extension displacement of the blocking member (320).

2. The anti-deviation device according to claim 1, characterized in that, The energy-absorbing assembly (300) further includes a guide (330) for connecting with the barrier (320) to adjust the direction of the barrier (320).

3. The anti-deviation device according to claim 2, characterized in that, It also includes a barrier cable (340), the barrier member (320) includes a nylon strip (321), one end of the nylon strip (321) is wrapped around the brake member (310), and the other end is connected to the barrier cable (340), the barrier cable (340) is used to connect to the object to be blocked (10).

4. The anti-deviation device according to claim 3, characterized in that, The barrier (320) also includes an adapter (322) for connecting the nylon tape (321) and the barrier cable (340).

5. A method for preventing deviation, used in any one of the anti-deviation devices according to claims 1-4, characterized in that, include: Obtain the displacement of the blocking component (320); Obtain the standard displacement of the obstructing object (10); Obtain the relative offset, which is the ratio of the displacement of the blocking member (320) to the standard displacement of the blocking object (10). Based on the relative offset, determine whether the blocking object (10) has shifted. If the object to be blocked (10) deviates, the brake (310) controls the extension length of the blocking member (320) according to the relative offset.

6. The method for preventing deviation according to claim 5, characterized in that, The step of determining whether the obstructing object (10) has shifted based on the relative offset includes: If the relative offset is greater than or less than a preset value, the blocking object (10) will shift. If the relative offset is equal to the preset value, then the blocking object (10) has not shifted.

7. The method for preventing deviation according to claim 6, characterized in that, If the object being blocked (10) deviates, the braking element (310) controls the extension length of the blocking element (320), including: When the relative offset is greater than a preset value, the braking force of the braking member (310) where the longer blocking member (320) is located increases, so that the deceleration curvature of the blocking object (10) is greater than zero, and the extension length of the blocking member (320) on both sides of the blocking object (10) is equal. When the relative offset is less than the preset value, the braking force of the braking member (310) where the shorter blocking member (320) is located is reduced so that the deceleration curvature of the blocking object (10) is less than zero, and the extension lengths of the blocking members (320) on both sides of the blocking object (10) are equal.

8. The method for preventing deviation according to claim 6 or 7, characterized in that, Also includes: Obtain the speed of the obstructing object (10); Obtain the deceleration of the obstructing object (10).

9. The method for preventing deviation according to claim 8, characterized in that, After the obstructing object (10) has not shifted, the following is also included: The deceleration of the object being blocked (10) is obtained. When the deceleration of the object being blocked (10) is less than or equal to the target deceleration value, the braking force of the brake (310) increases as the displacement of the blocking member (320) increases, wherein the target deceleration value is less than the maximum deceleration value.

10. The method for preventing deviation according to claim 8, characterized in that, When the obstructing object (10) does not shift, the following is also included: The speed of the object being blocked (10) is obtained. When the speed of the object being blocked (10) is less than or equal to the target speed value, the braking force of the braking element (310) is calculated according to the following formula: F = K1·(a x2 -K a ·(X-X2) m In the formula, F is the braking force, and K1 is the deceleration slope of the object being blocked (10); a x2 To decelerate the target, K a X is the deceleration slope of the object being blocked (10), X is the displacement of the blocking member (320), X2 is the standard displacement of the object being blocked (10), and the exponent m is the deceleration of the object being blocked (10).

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