Control method, device and equipment for automobile tail door

By obtaining the location and status information of the legal car key, controlling the opening and closing of the car tailgate solves the problem that the sensor cannot accurately identify the intention of control behavior, improves the accuracy of control and reduces the false alarm rate.

CN119801360APending Publication Date: 2025-04-11TSINGCAR (BEIJING) TECH CO LTD
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Patent Information

Application Number
CN202311304805.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-10-10
Publication Date
2025-04-11

AI Technical Summary

Technical Problem

In the prior art, the sensors of the tailgate of the car cannot accurately identify the control behavior intention, resulting in misjudgment in control.

Method used

By obtaining the location information of the legal car key and when the position is detected in the preset area where the car tailgate is opened, the key status information is determined, and the opening and closing of the car tailgate is controlled.

Benefits of technology

Through two-factor verification (position information and status information), this method reduces the intent identification errors caused by user error operations, improves the accuracy of car tailgate control, and reduces the false alarm rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a control method, device and equipment for an automobile tail door, relates to the technical field of automobiles, can accurately recognize the behavior intention of controlling the automobile tail door, and reduces the false alarm rate generated in the control process of the automobile tail door. The method comprises the steps that position information of a legal automobile key is obtained, the legal automobile key is an automobile key with automobile control authority, when it is detected that the position information is located in a preset area where an automobile tail door is opened, state information of the legal automobile key is determined, and the automobile tail door is controlled according to the state information of the legal automobile key.
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Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a method, device and equipment for controlling a car tailgate. Background Art

[0002] In order to facilitate the placement of items, most existing cars are equipped with a trunk, and the trunk is provided with a car tailgate. With the continuous development of automobile technology, the control of the car tailgate has gradually developed from a mechanical key control to a contactless control method.

[0003] For non-contact control methods, sensors can be installed on the tailgate, such as capacitive sensors, millimeter wave radars, cameras, projected TOF devices, etc., to sense the behavioral intention of controlling the tailgate, such as waving, kicking, etc., and then control the opening and closing of the tailgate according to the behavioral intention. However, in many scenarios, the user's misoperation behavior will also trigger the sensor's intention recognition, making it impossible for the sensor to accurately recognize the behavioral intention of controlling the tailgate, resulting in a certain degree of misjudgment in the control of the tailgate. Summary of the invention

[0004] In view of this, the present application provides a method, device and equipment for controlling a car tailgate, the main purpose of which is to solve the problem that the sensors in the prior art cannot accurately identify the behavioral intention of controlling the car tailgate, resulting in a certain degree of misjudgment in the control of the car tailgate.

[0005] According to a first aspect of the present application, a method for controlling a car tailgate is provided, comprising:

[0006] Obtaining location information of a legitimate car key, where the legitimate car key is a car key with car control authority;

[0007] When it is detected that the position information is in a preset area where the tailgate of the car is opened, determining the state information of the legal car key;

[0008] The tailgate of the vehicle is controlled according to the status information of the legal vehicle key.

[0009] Furthermore, the obtaining of the location information of the legal car key includes:

[0010] Receive the positioning signal output by the car key within the set area;

[0011] When authorization information with the vehicle control authority is detected in the positioning signal, the positioning signal is decoded to obtain the location information of the legal vehicle key.

[0012] Furthermore, after obtaining the location information of the legal car key, the method further includes:

[0013] Determining, based on the location information of the legal automobile key, the trajectory information formed by the legal automobile key within a preset time;

[0014] According to the trajectory information formed by the legal automobile key within the set time, it is identified whether the position information is in a preset area for opening the tailgate of the automobile.

[0015] Further, when the position information is detected to be in a preset area where the tailgate of the car is opened, determining the state information of the legal car key includes:

[0016] When it is detected that the position information is in a preset area where the tailgate of the car is opened, obtaining a continuous state of the legal car key in the preset area;

[0017] Determining the status information of the legal automobile key according to the duration of time the legal automobile key remains stationary in a preset area;

[0018] Accordingly, the controlling of the tailgate of the vehicle according to the status information of the legal vehicle key includes:

[0019] If the legal automobile key remains stationary in the preset area for a period of time that reaches a first set period of time, an opening control command is sent to the tailgate of the automobile.

[0020] Furthermore, if the legal automobile key remains stationary in the preset area for a first set time, sending an opening control instruction to the tailgate of the automobile includes:

[0021] If the legal car key remains stationary in the preset area for a first set time, a control prompt message is sent, wherein the control prompt message includes sound and / or light prompt message;

[0022] Obtain the continuous status of the legal car key in the preset area;

[0023] If the legal automobile key remains stationary in the preset area for a period of time that reaches a second set period of time, an opening control command is sent to the tailgate of the automobile.

[0024] Further, after sending the control prompt information, the method further includes:

[0025] If the legal car key is not in the preset area, the tailgate of the car is controlled to maintain the current open / closed state.

[0026] Further, after sending the opening control instruction to the tailgate of the automobile, the method further includes:

[0027] Obtain the continuous status of the legal car key in the preset area;

[0028] If the legal car key remains stationary in the preset area for a third set time period, or the legal car key leaves the preset area for a fourth set time period, a closing control instruction is sent to the tailgate of the car.

[0029] According to a second aspect of the present application, a control device for a car tailgate is provided, comprising:

[0030] An acquisition unit, used to acquire location information of a legitimate car key, where the legitimate car key is a car key with car control authority;

[0031] A first determining unit, configured to determine the state information of the legal automobile key when detecting that the position information is in a preset area where the tailgate of the automobile is opened;

[0032] The first control unit is used to control the tailgate of the vehicle according to the status information of the legal vehicle key.

[0033] Furthermore, the acquisition unit is specifically used to receive a positioning signal output by a car key within a set area; when authorization information with car control authority is detected in the positioning signal, the positioning signal is decoded to obtain the location information of the legitimate car key.

[0034] Furthermore, the device also includes:

[0035] A second determining unit is used to determine, after obtaining the location information of the legal car key, the trajectory information formed by the legal car key within a preset time according to the location information of the legal car key;

[0036] The identification unit is used to identify whether the position information is in a preset area for opening the tailgate of the car based on the trajectory information formed by the legal car key within a set time.

[0037] Further, the first determination unit is specifically used to obtain the state of the legal car key in the preset area when it is detected that the position information is in the preset area where the tailgate of the car is opened; and determine the state information of the legal car key according to the duration of the legal car key being in the static state in the preset area;

[0038] Correspondingly, the first control unit is specifically used to send an opening control instruction to the tailgate of the car if the length of time that the legal car key remains stationary in the preset area reaches a first set length of time.

[0039] Furthermore, the first control unit is specifically used to send control prompt information if the duration of the continuous stationary state of the legal car key in the preset area reaches a first set time, and the control prompt information includes sound and / or light prompt information; obtain the continuous state of the legal car key in the preset area; if the duration of the continuous stationary state of the legal car key in the preset area reaches a second set time, send an opening control command to the tailgate of the car.

[0040] Furthermore, the first control unit is specifically used to control the tailgate of the vehicle to maintain the current switch state if the legal vehicle key is not in a preset area after the control prompt information is sent.

[0041] Furthermore, the device also includes:

[0042] The second control unit is used to obtain the continuous status of the legal car key in the preset area after sending the opening control command to the car tailgate, and if the length of time that the legal car key continues to be stationary in the preset area reaches a third set time length, or the length of time that the legal car key leaves the preset area reaches a fourth set time length, then send a closing control command to the car tailgate.

[0043] According to a third aspect of the present application, there is provided a vehicle tailgate control device, comprising: a legal vehicle key, a key identification module, and a vehicle tailgate controller;

[0044] The legal car key outputs a positioning signal through a built-in frequency transmitter and outputs a motion state through a built-in motion sensor;

[0045] The key recognition module is used to obtain the position information of the car key according to the positioning signal output by the legal car key, and detect whether the position information is in a preset area where the tailgate of the car is opened according to the motion state output by the legal car key, so as to determine the state information of the legal car key;

[0046] The tailgate controller is used to control the tailgate of the car according to the status information of the legal car key.

[0047] According to a fourth aspect of the present application, a computer device is provided, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the method described in the first aspect when executing the computer program.

[0048] According to a fifth aspect of the present application, a readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method described in the first aspect are implemented.

[0049] By means of the above technical scheme, the present application provides a method, device and equipment for controlling the tailgate of a car. Compared with the method of controlling the tailgate of a car by behavioral intention in the current prior art, the present application obtains the location information of a legal car key, which is a car key with car control authority. When the location information is detected to be in the preset area for opening the tailgate of the car, the status information of the legal car key is determined, and the tailgate of the car is controlled according to the status information of the legal car key. The whole process sets a preset area for triggering the opening of the tailgate of the car, and double-verifies the location information and status information of the legal car key as the opening and closing conditions of the tailgate of the car, avoiding the intention recognition caused by the user's misoperation behavior, and can accurately identify the behavioral intention of controlling the tailgate of the car, thereby reducing the false alarm rate generated by the tailgate of the car during the control process.

[0050] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0052] Figure 1 It is a flowchart of a method for controlling a car tailgate according to an embodiment of the present application;

[0053] Figure 2 yes Figure 1 A schematic flow chart of a specific implementation of step 101;

[0054] Figure 3 is a flow chart of a method for controlling a car tailgate according to another embodiment of the present application;

[0055] Figure 4 yes Figure 1 A schematic flow chart of a specific implementation of step 102;

[0056] Figure 5 This is a schematic diagram of the structure of a control device for a car tailgate according to an embodiment of the present application;

[0057] Figure 6 It is a schematic diagram of the device structure of a computer device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0058] Now the content of the present invention will be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the content of the present invention, rather than implying any limitation on the scope of the present invention.

[0059] As used herein, the term "including" and variations thereof are to be interpreted as open-ended terms meaning "including but not limited to." The term "based on" is to be interpreted as "based, at least in part, on." The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment." The term "another embodiment" is to be interpreted as "at least one other embodiment."

[0060] The related technology can use a kick tailgate opening system to control the tailgate of a car, but the system has the disadvantages of high configuration cost and low sensing performance. In addition, the kicking action requires the user to lift his foot and trigger it by approaching the sensor at the bottom of the rear bumper with his foot. If the user is currently carrying a package with both hands, it is difficult to lift his foot to control the opening of the tailgate of the car. In addition, during the kicking process, it is necessary to get close to the rear of the car. If the car has a tailgate with a large moving trajectory, it is easy to cause the risk of collision between the human body and the tailgate of the car. Sensors can also be used to identify behavior trajectories or intentions, and control the tailgate of the car through behavior trajectories or intentions, but this method has the following two shortcomings. On the one hand, the sensor is prone to misjudgment. For example, rain on rainy days, people or pets passing by the tailgate of the car can easily trigger the sensor by mistake, causing the tailgate of the car to open unexpectedly. On the other hand, trajectory or intention recognition requires a large computing power and complex algorithms, which increases the difficulty and cost of implementation.

[0061] In order to solve this problem, this embodiment provides a method for controlling a car tailgate. Figure 1 As shown, the method is applied to the server end of the car tailgate control, and includes the following steps:

[0062] 101. Obtain the location information of the legitimate car key.

[0063] Among them, legal car keys are car keys that have car control permissions. The car keys here include physical keys, digital keys or Bluetooth keys, for example, digital keys based on smart terminals such as mobile phones and watches.

[0064] It can be understood that in order to facilitate the identification of legal car keys, different detection modules can be built into the legal car keys here, including a position detection module and a status detection module. The position detection module is mainly used to detect the real-time location information of the legal car keys. The specific position detection module can be implemented using a Bluetooth locator to find the location information of the legal car keys, and satellite signals can also be used to receive the location information of the legal car keys; the status detection module is mainly used to detect the real-time status information of the legal car keys. The specific status detection module can be implemented using a motion sensor IMU built into the legal car key. The motion state output by the motion sensor IMU can accurately obtain the status information of the legal car keys.

[0065] The executor of this embodiment can be a control device or equipment for the tailgate of a car, which can be configured on the server end of the tailgate control of the car. By obtaining the location information of a legal car key, the location information of the legal car key is used as the user location. If it is determined that the user location is within the preset area for opening the tailgate of the car, it is further detected whether the tailgate of the car has the control conditions for opening and closing based on the status information of the legal car key. The location information and status information of the legal car key are combined as the control conditions to trigger the opening and closing of the tailgate of the car, which can accurately perceive the user's behavioral intention to control the tailgate of the car.

[0066] 102. When it is detected that the position information is in a preset area where the tailgate of the car is opened, the status information of the legal car key is determined.

[0067] Among them, the preset area for opening the tailgate of the car is equivalent to the effective area for triggering the opening of the tailgate. The area may include but is not limited to the rear of the tailgate of the car, the vicinity of the tailgate of the car, etc. It is specifically set in an area that does not conflict with the movement trajectory of the tailgate of the car, thereby avoiding danger or injury to personnel caused by the automatic opening process of the tailgate of the car.

[0068] In one possible implementation, after obtaining the location information of the legal car key, an information acquisition request can be initiated to the legal car key through instructions, so that the legal car key continuously transmits back the current status information, and the status information of the legal car key is determined through the transmitted information.

[0069] In another possible implementation, after obtaining the location information of the legal automobile key, the location information of the legal automobile key is usually constantly changing. When the location information enters the preset area where the tailgate of the automobile is opened, the location information can form a track, and the status information of the legal automobile key is determined by the track or action formed by the location information. For example, if the track formed by the location information changes within a set distance near the tailgate of the automobile, it can be determined that the status information of the legal security key is in a static state.

[0070] In another possible implementation, after obtaining the location information of the legal car key, the camera set on the tailgate of the car can be used to identify the actions performed by the user wearing the legal car key, and the status information of the legal key can be determined based on the actions performed by the user. For example, when the action performed is waving the hand, the status information of the legal car key is determined to be a stationary state.

[0071] 103. Control the tailgate of the vehicle according to the status information of the legal vehicle key.

[0072] The status information of the legal car key here mainly includes a static state and a moving state. The static state indicates that the user carrying the legal car key moves slightly or remains stationary within the preset area for opening the car tailgate. At this time, the car tailgate can be controlled to open and an opening control command can be sent to the car tailgate. The moving state indicates that the user carrying the legal car key moves greatly within the preset area for opening the car tailgate or leaves the preset area for opening the car tailgate. At this time, there is no need to send an opening control command to the car tailgate, and the car tailgate is controlled to remain closed.

[0073] It is understandable that the status information of a legitimate car key is usually displayed as a continuous state. If the time interval of the status information of a legitimate car key is too short, it is difficult to accurately indicate the user's intention to control the car tailgate, which is not conducive to controlling the car tailgate. For example, if a legitimate car key remains stationary for 2 seconds, it does not mean that the user wants to open the car tailgate. It may be that the user is briefly staying near the tailgate. Here, a time interval for the status to continue can be set. When the duration of the status information of the legitimate car key reaches the set time interval, the car tailgate is controlled according to the status information of the legitimate car key.

[0074] Compared with the method of controlling the car tailgate using behavioral intention in the current prior art, the method of controlling the car tailgate provided in the embodiment of the present application obtains the location information of a legal car key, which is a car key with car control authority. When the location information is detected to be in the preset area for opening the car tailgate, the status information of the legal car key is determined, and the car tailgate is controlled according to the status information of the legal car key. The whole process sets a preset area for triggering the opening of the car tailgate, and double-verifies the location information and status information of the legal car key as the opening and closing conditions of the car tailgate, avoiding the intention recognition caused by the user's misoperation behavior, and can accurately identify the behavioral intention of controlling the car tailgate, reducing the false alarm rate generated by the car tailgate during the control process.

[0075] In the above embodiment, the legal car key usually has the authorization information of the car control authority. In order to accurately verify the car operation authority, the legitimacy of the car key can be determined through the authorization information, and then the location information of the legal car key can be obtained. Specifically, Figure 2 As shown, step 101 includes the following steps:

[0076] 201. Receive a positioning signal output by a car key within a set area.

[0077] 202. When authorization information with the vehicle control authority is detected in the positioning signal, the positioning signal is decoded to obtain the location information of the legal vehicle key.

[0078] The set area range may be an area range with a set distance from the car as the center, for example, an area within 10 meters around the car. Usually, the car end can detect the positioning signal sent by the surrounding car keys through the built-in key recognition module. The positioning information carries the car attribute information, including the car identification information, registration information, etc. By comparing the car identification information in the positioning signal with the legal car identification, if the comparison is consistent, it can be detected that the positioning signal has the authorization information of the car control authority, and the positioning signal is further decoded to obtain the location information of the legal car key.

[0079] In an practicable manner, the positioning signal is equivalent to the signal emitted by the signal source, which can be a GPS digital signal. Specifically, the GPS digital signal can be converted into understandable positioning information by digital processing, and the understandable positioning information is decoded and processed to extract the navigation data, including the satellite's position, time information, satellite health status, etc. The decoded navigation data is further used in combination with information such as the time difference of the signal to perform positioning calculations. The process can use the principle of triangulation to determine the position of the receiver by measuring the distance between the receiver and the satellite. Finally, the receiver outputs the calculated positioning result, which is usually presented in the form of longitude, latitude and altitude width. The result is the location information of the legal car key. It should be noted that error correction and filtering technologies can also be added to the GPS signal decoding process to improve the accuracy and stability of positioning.

[0080] Furthermore, in the above embodiment, if Figure 3 As shown, after step 101, the method further includes the following steps:

[0081] 301. Determine, based on the location information of the legal automobile key, the trajectory information formed by the legal automobile key within a preset time.

[0082] 302. According to the trajectory information formed by the legal automobile key within a set time, identify whether the position information is in a preset area for opening the automobile tailgate.

[0083] In this embodiment, the preset area for opening the tailgate of a car can use a geographic coordinate system or other coordinate system to represent the scope of the set area, and the trajectory information formed by the location information of the legal car within the preset time can be a collection of a series of location points, each location point containing coordinate information such as longitude and latitude.

[0084] Specifically, for each location point, the relationship between the point and the area can be used to make a judgment. For example, if the point is inside a polygon, if the set area is a polygon, the ray method or the point-in-polygon algorithm can be used to determine whether the point is inside the polygon. If the set area is a circle, the distance between the point and the center of the circle can be calculated to determine whether the distance is less than the radius of the circle. If the set area is a rectangle, it can be determined whether the longitude and latitude of the point are within the range of the rectangle. Further, based on the judgment result, the output location information is whether it is in the preset area where the car tailgate is opened.

[0085] It should be noted that the definition of the preset area will affect the judgment result. In practical applications, it may be necessary to consider the error range and fault tolerance mechanism to improve the accuracy and robustness of the judgment.

[0086] Specifically, in the above embodiment, Figure 4 As shown, step 102 includes the following steps:

[0087] 401. When it is detected that the position information is in a preset area where the tailgate of the car is opened, a continuous state of the legal car key in the preset area is obtained.

[0088] 402. Determine status information of the legal vehicle key according to a duration during which the legal vehicle key remains stationary in a preset area.

[0089] Correspondingly, step 103 includes the following steps: if the time duration of the legal automobile key remaining stationary in the preset area reaches a first set time duration, sending an opening control instruction to the automobile tailgate.

[0090] Specifically, the length of time that the legal car key remains in the preset area can reflect the status information of the user near the tailgate of the car to a certain extent. Here, the length of time that the legal car key remains in the preset area can be used as the intention perception to control the tailgate of the car. If the legal car key remains in a stationary state in the preset area for a short time, it means that the user has no intention of opening the tailgate of the car. At this time, the status information of the legal car key is determined to be in a moving state. If the legal car key remains in a stationary state in the preset area for a short time, it means that the user has the intention of opening the tailgate of the car. At this time, the status information of the legal car key is determined to be in a stationary state.

[0091] In this embodiment, the first preset time should not be too short or too long. If the time is too short, it cannot reflect the user's fixed state at the tailgate of the car. If the time is too long, the user has to wait too long at the tailgate of the car, and the user experience is poor. The specific first preset time is not specifically limited, and is preferably 5-10 seconds.

[0092] It should be noted that if the legal car key does not have a motion sensor, it can be accurately positioned through UWB to generate regular movements in a preset area. For example, it cannot follow a certain shape, or it can perform a certain amplitude of movement when carrying a legal car. It can also replace the motion sensor to realize the intention perception of controlling the car tailgate.

[0093] Taking into account that opening the tailgate of a car will suddenly produce movement and even trigger sound, in order to further confirm whether the user is willing to open the tailgate of the car, before sending the opening control command to the tailgate of the car, specifically, if the legal car key continues to be stationary in the preset area for a first set time, a control prompt information is sent, and the control prompt information includes sound and / or light prompt information. Here, the car can send the control prompt information by combining sound and light. The control prompt information is not limited to the form of car lights, flashing or honking. Then, the continuous state of the legal car key in the preset area is obtained. If the legal car key continues to be stationary in the preset area for a second set time, an opening control command is sent to the tailgate of the car.

[0094] In another possible implementation, after sending the control prompt information, the user's feedback information can be obtained through the shooting device configured for the tailgate of the car. Further, if the feedback information is a gesture and / or voice to confirm opening, an opening control instruction is sent to the tailgate of the car. If the feedback information is a gesture and / or voice to deny opening, no opening control instruction is sent to the tailgate of the car, and the tailgate of the car remains closed.

[0095] Taking into account the user's movement, accordingly, after sending the control prompt information, the legal car key may also change within the preset area. During the movement of the legal key, if the user is not in the preset area, the legal car key is not in the preset area at this time, and the status information of the legal car key is the motion state. If the legal car key is not in the preset area, the car tailgate is controlled to maintain the current switch state. At this time, no opening control command will be sent to the car tailgate, but the car tailgate will be controlled to remain closed.

[0096] It is understandable that in the preset area, a person wearing a legal car key can reflect the person's motion state through the built-in motion sensor, and the opening and closing of the car tailgate can be triggered by satisfying the motion rules within the set time. The motion rules here are the state information of the legal car key, which can be static or motion that meets the preset rules, such as turning in circles, stomping twice, or stepping on the spot, etc. Further, after satisfying the location conditions of the preset area and the motion rules of the set time, the opening of the car tailgate can be prompted or preliminarily judged. After the prompt or preliminarily judged, the car tailgate is controlled to open after continuing to meet the motion rules of the set time.

[0097] In this example, a preset area is used as the position condition for the user to open the car tailgate, and the user's movement rules in the preset area are used as the state condition for the user to open the car tailgate. The position condition and the state condition are combined to determine whether the user has the intention to open the car tailgate, and the user is given corresponding control prompt information during the judgment process. If the state condition for the user to open the car tailgate is still met after the prompt, the opening of the car tailgate is controlled. This can reduce the false alarm rate and accurately identify the user's intention to control the car tailgate.

[0098] Furthermore, after sending the opening control instruction to the tailgate of the car, considering that the closing of the tailgate of the car needs to be triggered by certain conditions, the closing of the tailgate of the car can be triggered by the opening time as a condition, and the closing of the tailgate of the car can also be triggered by the user leaving the preset area as a condition. Specifically, the continuous state of the legal car key in the preset area can be obtained. If the duration of the legal car key remaining stationary in the preset area reaches the third set duration, or the duration of the legal car key leaving the preset area reaches the fourth set duration, then the closing control instruction is sent to the tailgate of the car. For example, after the tailgate of the car is opened, if it is determined that the user remains stationary in the preset area, that is, the state information of the legal car key is a stationary state, and the duration exceeds 5 seconds, or the user leaves the preset area for more than 5 seconds, then the closing control instruction is sent to the tailgate of the car to close the tailgate of the car.

[0099] Further, as Figure 1-4 The specific implementation of the method, the embodiment of the present application provides a control device for a car tailgate, including: a legal car key, a key identification module, and a car tailgate controller;

[0100] The legal car key outputs a positioning signal through a built-in frequency transmitter, and outputs a motion status through a built-in motion sensor; here, the legal car key includes a physical key or a digital key (with a mobile phone, watch or other smart terminal as a carrier), which requires a built-in motion sensor IMU. The legal car key can be identified and located by a key recognition module, and the motion status of the legal car key, i.e., moving or stationary, can be output through the built-in motion sensor of the legal car key.

[0101] The key recognition module is used to obtain the location information of the car key according to the positioning signal output by the legal car key, and detect whether the location information is in the preset area where the car tailgate is opened according to the movement state output by the legal car key, so as to determine the status information of the legal car key; the key recognition module can be installed on the car side, and is used to identify the validity of the car key and detect the location of the car key. Specifically, it may include an antenna and a processor. The key recognition module can identify the legal car key with authorization information, and obtain the location information of the legal car key as the user's location information. In addition, the key recognition module can also be implemented using any system such as a PEPS key system, a Bluetooth key system, a UWB key system, etc. with corresponding functions.

[0102] The tailgate controller is used to control the tailgate of the car according to the status information of the legal car key. The tailgate controller is mainly used to control the opening or closing of the tailgate of the car.

[0103] During the entire car tailgate control process, a set area that can trigger the opening of the car tailgate is first set, and then when the user enters the preset area with a legal car key and remains stationary for a period of time, during this process, the motion sensor on the legal car key will feed back the identified status information to the car. After determining that the legal car key has been stationary for a period of time, a prompt message is sent to the user through sound / light and other prompts, indicating that the tailgate is open. If the user continues to remain stationary after receiving the prompt message, the status information of the legal car key will also continue to be fed back to the car during this period. If the status information of the legal car remains stationary for a period of time, the car tailgate is controlled to open.

[0104] Further, as Figure 1-4 The specific implementation of the method, the embodiment of the present application provides a control device for a car tailgate, such as Figure 5 As shown, the device includes: an acquisition unit 51, a first determination unit 52, and a first control unit 53.

[0105] An acquisition unit 51 is used to acquire location information of a legitimate car key, where the legitimate car key is a car key with car control authority;

[0106] A first determining unit 52, configured to determine the state information of the legal automobile key when it is detected that the position information is in a preset area where the tailgate of the automobile is opened;

[0107] The first control unit 53 is used to control the tailgate of the vehicle according to the status information of the legal vehicle key.

[0108] Compared with the method of controlling the tailgate of a car using behavioral intention in the current prior art, the control device for the tailgate of a car provided by the embodiment of the present invention obtains the location information of a legal car key, which is a car key with car control authority. When the location information is detected to be in the preset area for opening the tailgate of the car, the status information of the legal car key is determined, and the tailgate of the car is controlled according to the status information of the legal car key. The whole process sets a preset area for triggering the opening of the tailgate of the car, and double-verifies the location information and status information of the legal car key as the opening and closing conditions of the tailgate of the car, avoiding the intention recognition caused by the user's misoperation behavior, and can accurately identify the behavioral intention of controlling the tailgate of the car, thereby reducing the false alarm rate generated by the tailgate of the car during the control process.

[0109] In a specific application scenario, the acquisition unit 51 is specifically used to receive a positioning signal output by a car key within a set area; when authorization information with car control authority is detected in the positioning signal, the positioning signal is decoded to obtain the location information of the legitimate car key.

[0110] In a specific application scenario, the device further includes:

[0111] A second determining unit is used to determine, after obtaining the location information of the legal car key, the trajectory information formed by the legal car key within a preset time according to the location information of the legal car key;

[0112] The identification unit is used to identify whether the position information is in a preset area for opening the tailgate of the car based on the trajectory information formed by the legal car key within a set time.

[0113] In a specific application scenario, the first determining unit 52 is specifically used to obtain the state of the legal car key in the preset area when it is detected that the position information is in the preset area where the tailgate of the car is opened; and determine the state information of the legal car key according to the duration of the legal car key being in a static state in the preset area;

[0114] Correspondingly, the first control unit 53 is specifically configured to send an opening control instruction to the tailgate of the vehicle if the time duration that the legal vehicle key remains stationary in the preset area reaches a first set time duration.

[0115] In a specific application scenario, the first control unit 53 is also specifically used to send control prompt information if the duration of the legal car key remaining stationary in the preset area reaches a first set duration, and the control prompt information includes sound and / or light prompt information; obtain the continuous state of the legal car key in the preset area; if the duration of the legal car key remaining stationary in the preset area reaches a second set duration, send an opening control command to the car tailgate.

[0116] In a specific application scenario, the first control unit 53 is further configured to control the tailgate of the vehicle to maintain the current switch state if the legal vehicle key is not in the preset area after the control prompt information is sent.

[0117] In a specific application scenario, the device further includes:

[0118] The second control unit is used to obtain the continuous status of the legal car key in the preset area after sending the opening control command to the car tailgate, and if the length of time that the legal car key continues to be stationary in the preset area reaches a third set time length, or the length of time that the legal car key leaves the preset area reaches a fourth set time length, then send a closing control command to the car tailgate.

[0119] It should be noted that for other corresponding descriptions of the functional units involved in the control device for the automobile tailgate provided in this embodiment, reference can be made to Figure 1-Figure 4 The corresponding description in will not be repeated here.

[0120] Based on the above Figure 1-Figure 4 The method shown in the embodiment of the present application accordingly provides a storage medium on which a computer program is stored, and when the program is executed by a processor, the above-mentioned Figure 1-Figure 4 The control method of the automobile tailgate is shown.

[0121] Based on this understanding, the technical solution of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each implementation scenario of the present application.

[0122] Based on the above Figure 1-Figure 4 The method shown, and Figure 5In order to achieve the above-mentioned purpose, the embodiment of the present application also provides a physical device for controlling the tailgate of a car, which can be a computer, a smart phone, a tablet computer, a smart watch, a server, or a network device, etc. The physical device includes a storage medium and a processor; the storage medium is used to store a computer program; the processor is used to execute the computer program to achieve the above-mentioned Figure 1-Figure 4 The control method of the automobile tailgate is shown.

[0123] Optionally, the physical device may also include a user interface, a network interface, a camera, a radio frequency (RF) circuit, a sensor, an audio circuit, a WI-FI module, etc. The user interface may include a display, an input unit such as a keyboard, etc., and the optional user interface may also include a USB interface, a card reader interface, etc. The network interface may optionally include a standard wired interface, a wireless interface (such as a WI-FI interface), etc.

[0124] In an exemplary embodiment, see Figure 6 The physical device includes a communication bus, a processor, a memory and a communication interface, and may also include an input / output interface and a display device, wherein each functional unit can communicate with each other through the bus. The memory stores a computer program, and the processor is used to execute the program stored in the memory and execute the control method of the automobile tailgate in the above embodiment.

[0125] Those skilled in the art will appreciate that the physical device structure for controlling a car tailgate provided in this embodiment does not constitute a limitation on the physical device, and may include more or fewer components, or a combination of certain components, or different arrangements of components.

[0126] The storage medium may also include an operating system and a network communication module. The operating system is a program that manages the hardware and software resources of the physical device for controlling the above-mentioned automobile tailgate, and supports the operation of information processing programs and other software and / or programs. The network communication module is used to realize communication between the components inside the storage medium, and communication with other hardware and software in the information processing physical device.

[0127] Through the description of the above implementation methods, those skilled in the art can clearly understand that the present application can be implemented by means of software plus a necessary general hardware platform, or by hardware. By applying the technical solution of the present application, compared with the current existing methods, the present application sets a preset area for triggering the opening of the car tailgate, and double-verifies the location information and status information of the legal car key as the opening and closing conditions of the car tailgate, thereby avoiding the intention recognition caused by the user's misoperation behavior, accurately identifying the behavioral intention of controlling the car tailgate, and reducing the false alarm rate of the car tailgate during the control process.

[0128] Those skilled in the art will appreciate that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, and the modules or processes in the accompanying drawings are not necessarily necessary for implementing the present application. Those skilled in the art will appreciate that the modules in the devices in the implementation scenario can be distributed in the devices of the implementation scenario according to the description of the implementation scenario, or can be changed accordingly and located in one or more devices different from the present implementation scenario. The modules of the above-mentioned implementation scenario can be combined into one module, or can be further split into multiple submodules.

[0129] The above serial numbers of this application are only for description and do not represent the advantages and disadvantages of the implementation scenarios. The above disclosure is only a few specific implementation scenarios of this application, but this application is not limited to them, and any changes that can be thought of by technicians in this field should fall within the scope of protection of this application.

Claims

1. A method for controlling a car tailgate, characterized in that: include: Obtaining location information of a legitimate car key, where the legitimate car key is a car key with car control authority; When it is detected that the position information is in a preset area where the tailgate of the car is opened, determining the state information of the legal car key; The tailgate of the vehicle is controlled according to the status information of the legal vehicle key.

2. The method according to claim 1, characterized in that The obtaining of the location information of the legal car key includes: Receive the positioning signal output by the car key within the set area; When authorization information with the vehicle control authority is detected in the positioning signal, the positioning signal is decoded to obtain the location information of the legal vehicle key.

3. The method according to claim 1, characterized in that After obtaining the location information of the legal car key, the method further includes: Determining, based on the location information of the legal automobile key, the trajectory information formed by the legal automobile key within a preset time; According to the trajectory information formed by the legal automobile key within the set time, it is identified whether the position information is in a preset area for opening the tailgate of the automobile.

4. The method according to claim 1, characterized in that: When the position information is detected to be in a preset area where the tailgate of the car is opened, determining the state information of the legal car key includes: When it is detected that the position information is in a preset area where the tailgate of the car is opened, obtaining a continuous state of the legal car key in the preset area; Determining the status information of the legal automobile key according to the duration of time the legal automobile key remains stationary in a preset area; Accordingly, the controlling of the tailgate of the vehicle according to the status information of the legal vehicle key includes: If the legal automobile key remains stationary in the preset area for a period of time that reaches a first set period of time, an opening control command is sent to the tailgate of the automobile.

5. The method according to claim 4, characterized in that If the legal automobile key remains in a static state in the preset area for a period of time that reaches a first set period of time, sending an opening control instruction to the tailgate of the automobile includes: If the legal car key remains stationary in the preset area for a first set time, a control prompt message is sent, wherein the control prompt message includes sound and / or light prompt message; Obtain the continuous status of the legal car key in the preset area; If the legal automobile key remains stationary in the preset area for a period of time that reaches a second set period of time, an opening control command is sent to the tailgate of the automobile.

6. The method according to claim 5, characterized in that After sending the control prompt information, the method further includes: If the legal car key is not in the preset area, the tailgate of the car is controlled to maintain the current open / closed state.

7. A control device for a car tailgate, characterized in that: include: An acquisition unit, used to acquire location information of a legitimate car key, where the legitimate car key is a car key with car control authority; A first determining unit, configured to determine the state information of the legal automobile key when detecting that the position information is in a preset area where the tailgate of the automobile is opened; The first control unit is used to control the tailgate of the vehicle according to the status information of the legal vehicle key.

8. A control device for a car tailgate, characterized in that: include: Legal car keys, key identification modules, and car tailgate controllers; The legal car key outputs a positioning signal through a built-in frequency transmitter and outputs a motion state through a built-in motion sensor; The key recognition module is used to obtain the position information of the car key according to the positioning signal output by the legal car key, and detect whether the position information is in a preset area where the tailgate of the car is opened according to the motion state output by the legal car key, so as to determine the state information of the legal car key; The tailgate controller is used to control the tailgate of the car according to the status information of the legal car key.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the vehicle tailgate control method according to any one of claims 1 to 6 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the vehicle tailgate control method according to any one of claims 1 to 6 are implemented.