Greeting lamp projection control method and device based on air gesture and vehicle

Abstract

The invention discloses a welcome lamp projection control method and device based on an air gesture and a vehicle, and the method comprises the steps: obtaining an air gesture action of a target user when the vehicle and remote terminal equipment are in a connected state; wherein the air gesture action is a five-finger opening action or a finger sliding action; identifying and analyzing the air gesture action to obtain a first target user intention and a second target user intention corresponding to the air gesture action; wherein the first target user intention comprises an information transmission instruction and a projection control instruction; receiving media information of the remote terminal equipment according to the information transmission instruction; wherein the media information of the remote terminal equipment comprises patterns, videos and / or audios; and controlling the greeting lamp to start according to the projection control instruction and outputting the received media information. By applying the technical scheme of the invention, the problem of tedious pattern switching of the welcome lamp on the vehicle can be solved, and the convenience of projection display switching of the welcome lamp on the vehicle and the use experience of a user are improved.

Description

Technical Field

[0001] This application relates to the field of vehicle control technology, specifically to a method, device, and vehicle for controlling welcome light projection based on air gestures. Background Technology

[0002] Currently, as users' lives become more colorful, their functional requirements for vehicles are increasing, and lighting devices such as welcome lights are gradually becoming standard equipment on vehicles.

[0003] However, the welcome light patterns on vehicles are generally fixed. To switch the welcome light patterns, it is usually done through the central control screen inside the vehicle, which is cumbersome. Moreover, the user is already in the car and cannot see the switched welcome light pattern. Summary of the Invention

[0004] In view of the above problems, this application provides a method, device and vehicle for controlling welcome light projection based on air gestures, which can solve the problem of cumbersome switching of welcome light patterns on vehicles, and improve the convenience of switching welcome light projection display on vehicles and the user experience.

[0005] According to one aspect of the embodiments of this application, a welcome light projection control method based on air gestures is provided, applied to a vehicle, the method comprising: When the vehicle and the remote terminal device are connected, the air gesture of the target user is acquired; wherein, the air gesture is a five-finger spreading action or a finger sliding action; The air gesture action is identified and analyzed to obtain the first target user intent corresponding to the air gesture action; wherein, the first target user intent includes information transmission instructions and projection control instructions; Receive media information from the remote terminal device according to the information transmission instruction; The welcome lights are activated and the received media information is output according to the projection control command; wherein, the media information of the remote terminal device includes patterns, videos and / or audio.

[0006] In an optional exemplary embodiment, the method further includes: The target user's hand position, hand shape, and hand movement trajectory are obtained. Based on the hand position, hand shape, and hand movement trajectory, determine whether the target user's air gesture is a five-finger spread or finger sliding motion.

[0007] In an optional exemplary embodiment, the method further includes: After the welcome lights are activated, the projection material, ambient brightness, and obstacles in the projection area are obtained, as well as the current vehicle posture and the weather conditions at the vehicle's location are obtained. The projection parameters of the welcome light are adjusted according to the projection material, the ambient light level, the obstacles, the current vehicle posture, and / or the weather conditions; wherein the projection parameters of the welcome light include brightness, contrast, saturation, projection focal length, projection angle, projection range, and keystone correction value.

[0008] In an optional exemplary embodiment, the method further includes: Once the target user is detected entering the vehicle's cabin, the welcome lights are turned off and a media information storage command is output. The media information output by the welcome light is stored according to the media information storage instruction, so as to store the media information in the cloud and / or the vehicle's local storage.

[0009] In an optional exemplary embodiment, prior to the step of acquiring the air gesture action of the target user, the method further includes: Real-time detection of whether a remote terminal device pre-bound to the vehicle enters the vehicle's preset area range; If so, a remote terminal device that enters the preset area of ​​the vehicle will be paired and connected with the vehicle to put the vehicle and the remote terminal device in a connected state.

[0010] According to another aspect of the embodiments of this application, a welcome light projection control method based on air gestures is provided, applied to a remote terminal device, the method comprising: When the vehicle and the remote terminal device are connected, the air gesture action of the target user is acquired; wherein, the air gesture action is a five-finger grasping action or a finger pointing action; The air gesture action is identified and analyzed to obtain a second target user intent corresponding to the air gesture action; wherein, the second target user intent includes an information selection instruction; Select the media information of the remote terminal device according to the information selection instruction; The media information of the selected remote terminal device is sent to the vehicle so that the vehicle's welcome lights output the media information of the remote terminal device; wherein, the media information of the remote terminal device includes patterns, videos and / or audio.

[0011] In an optional exemplary embodiment, the method further includes: The transmission of media information from the selected remote terminal devices is optimized based on the strength of the interconnect signal. The optimized media information of the remote terminal device is sent to the vehicle so that the vehicle's welcome lights output the optimized media information of the remote terminal device; wherein, the media information of the remote terminal device includes patterns, video and / or audio.

[0012] In an optional exemplary embodiment, after the step of controlling the welcome light to start and output the received media information according to the projection control command, the method further includes: Acquire the target user's secondary air gesture action; The media information output by the welcome lights is controlled by the secondary air gesture action.

[0013] According to another aspect of the embodiments of this application, a welcome light projection control device based on air gestures is provided, applied to a vehicle, the device comprising: The gesture acquisition module is used to acquire the air gesture actions of the target user when the vehicle and the remote terminal device are in a connected state; wherein, the air gesture action is a five-finger spreading action or a finger sliding action; An intent determination module is used to acquire a first target user intent corresponding to the air gesture action; wherein, the first target user intent includes an information transmission instruction and a projection control instruction; The information receiving module is used to receive media information from the remote terminal device according to the information transmission instruction; The projection control module is used to control the welcome lights to start and output the received media information according to the projection control command; wherein, the media information of the remote terminal device includes patterns, videos and / or audio.

[0014] According to another aspect of the embodiments of this application, a vehicle is provided, comprising: Controller; The memory is used to store one or more programs, which, when executed by the controller, enable the controller to implement the welcome light projection control method based on air gestures described above.

[0015] The method for controlling the projection of a welcome light based on air gestures in the embodiments of the present application is applied to a vehicle. When the vehicle is in a connected state with a remote terminal device, by obtaining air gesture actions such as the action of spreading the five fingers of the target user or the action of sliding the fingers, the air gesture actions are identified and analyzed to determine the first target user intention represented by the air gesture actions. If the obtained air gesture action of the target user is the action of spreading the five fingers or the action of sliding the fingers, it is determined that the first target user intention includes an information transmission instruction and a projection control instruction on the remote terminal device. Then, according to the information transmission instruction, the media information on the remote terminal device is received by the vehicle, and at the same time, according to the projection control instruction, the welcome light is controlled to start and output the media information such as patterns, videos, and / or audios received by the remote terminal device; thus, after the target user approaches the vehicle and the vehicle is connected to the remote terminal device held by the target user, combined with the air gesture actions of the target user, the user can use the remote terminal device to custom-upload patterns, videos, and / or audios to the vehicle and play them through the projection of the welcome light of the vehicle, so as to achieve the linkage between the remote terminal device of the user and the projection display of the welcome light of the vehicle, which can solve the problem that the display of the welcome light on the vehicle is controlled and switched through the central control screen in the vehicle, which is relatively cumbersome, and improves the convenience of switching the projection pattern of the welcome light on the vehicle and the user experience.

[0016] The above description is only an overview of the technical solutions in the embodiments of the present application. In order to be able to understand the technical means of the embodiments of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features, and advantages of the embodiments of the present application more obvious and understandable, the specific embodiments of the present application are specifically given below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings here are incorporated into the specification and constitute a part of this specification, showing the embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 The flowchart shows an embodiment of the method for controlling the projection of a welcome light based on air gestures applied to a remote terminal device in the present application.

[0019] Figure 2 The flowchart shows an embodiment of step S140 in the method for controlling the projection of a welcome light based on air gestures in the present application.

[0020] Figure 3 The flowchart shows an embodiment of the process after step S140 in the method for controlling the projection of a welcome light based on air gestures in the present application.

[0021] Figure 4 The diagram shows a flowchart of an embodiment of the welcome light projection control method based on air gestures for vehicles, which is applied to vehicles according to this application.

[0022] Figure 5 The diagram shows a flowchart of an embodiment of step S310 in the welcome light projection control method based on air gestures of this application.

[0023] Figure 6 A schematic diagram of an embodiment of the welcome light projection control device based on air gestures for vehicles, as described in this application, is shown.

[0024] Figure 7 A schematic diagram of the structure of an embodiment of the vehicle provided in this application is shown. Detailed Implementation

[0025] 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.

[0026] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0027] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0028] In this application, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0029] Currently, the welcome light patterns on vehicles are generally fixed. To switch the welcome light patterns, it is usually done through the central control screen inside the vehicle, which is cumbersome. Moreover, the user is already in the car and cannot see the switched welcome light pattern.

[0030] In view of this, to solve the above problems, this application proposes a gesture-based welcome light projection control method for remote terminal devices, which solves the problem of cumbersome switching of welcome light patterns on vehicles in related technologies, and improves the convenience of switching welcome light projection patterns and the user experience. In this gesture-based welcome light projection control method, the executing entity is a remote terminal device, which can be a mobile phone, tablet computer, wearable device, etc. In some possible implementations, this gesture-based welcome light projection control method can be implemented by a processor calling computer-readable instructions stored in memory.

[0031] Specifically, please refer to, for example Figure 1 As shown, the welcome light projection control method based on air gestures in this embodiment is applied to a remote terminal device. For ease of explanation in the following embodiments, the remote terminal device is a mobile phone as an example. The method includes the following steps: Step S110: When the vehicle and the remote terminal device are in a connected state, acquire the air gesture action of the target user.

[0032] The phrase "the vehicle and the remote terminal device are in a connected state" means that the vehicle and the remote terminal device have been pre-bound and matched. The vehicle and the remote terminal can be in the same local area network, and can communicate with each other through Bluetooth, WLAN (Wireless Local Area Network), UWB (Ultra Wideband), cellular communication networks, etc.

[0033] For example, if the remote terminal device is a mobile phone, it means that the vehicle and the target user's mobile phone have been pre-paired and matched. When the target user approaches the pre-paired vehicle and enters the vehicle's connectable area, the paired mobile phone carried by the target user is also within the vehicle's connectable area, enabling the vehicle and the remote terminal device to pair and connect. At this time, the target user's mobile phone and the vehicle are in a connected state. Air gestures are five-finger grasping or pointing actions, which can be collected and recognized by the sensors of the target user's mobile phone. When the target user extends their hand in front of the phone, the phone's sensors immediately activate, collecting the target user's hand position, hand shape, and hand movement trajectory to recognize the target user's air gesture.

[0034] It should be understood that the mobile phone sensors used to recognize the air gestures of the target user are limited according to the actual application. For example, the sensors may include, but are not limited to, IMU (Inertial Measurement Unit), front-facing camera, infrared transceiver, etc., to collect and recognize the position, shape and trajectory of the target user's hand.

[0035] An IMU (Integrated Measurement Unit) includes a gyroscope and an accelerometer, which can detect data such as angular velocity and acceleration in real time and generate attitude information. In other words, the IMU on the mobile phone can detect the angular velocity, acceleration and other data of the target user's air gestures in front of the mobile phone screen in real time, thereby calculating the target user's rotation angle, tilt and other hand postures, as well as the hand movement trajectory in real time.

[0036] An infrared transceiver is a device that emits infrared light and calculates the reflection time to generate a depth image (3D point cloud) of the target object. In other words, the infrared transceiver on a mobile phone can directly obtain the spatial coordinates of the target user's hand, thereby extracting the position of the target user's hand joints.

[0037] The front-facing camera refers to the camera that captures images of a target object using visible light, preprocesses the image to highlight the hand, and directly obtains the shape and features of the target object. In other words, the front-facing camera on a mobile phone can directly capture the shape of the target user's hand.

[0038] In this embodiment, the IMU, infrared transceiver, and front-facing camera of the mobile phone can be fused to detect the position, shape, and trajectory of the target user's hand when the target user extends his / her hand in front of the mobile phone screen, thereby determining the target user's air gesture action and improving the accuracy of the recognition of the target user's air gesture action.

[0039] Step S120: Recognize and analyze the air gesture action to obtain the second target user intent corresponding to the air gesture action.

[0040] The second target user intent obtained by the remote terminal device includes an information selection instruction, which means that the second target user intent represents the selection of media information displayed on the mobile phone screen.

[0041] In this embodiment, when the target user extends their hand in front of the phone, the phone's sensors will immediately activate, collecting the target user's hand position, hand shape, and hand movement trajectory, and confirming whether the air gesture is a five-finger grasping action or a finger pointing action based on the collected target user's hand position, hand shape, and hand movement trajectory.

[0042] At the same time, the five-finger grasping action or finger pointing action is matched with the preset control command to determine the second target user intent corresponding to the five-finger grasping action or finger pointing action, so that the corresponding control command can be executed based on the second target user intent corresponding to the five-finger grasping action or finger pointing action.

[0043] It should be noted that the identification and analysis of the target user's air gestures can be achieved by combining a large number of air gesture actions and training and optimizing them based on AI (Artificial Intelligence) algorithms and machine learning models. This allows for accurate identification of the target user's air gestures, confirming the second target user's intentions and enabling the phone to execute corresponding control commands. For example, in this embodiment, a five-finger grasping action or a finger pointing action represents an information selection command issued by the target user.

[0044] Step S130: Select media information of the remote terminal device according to the information selection instruction; wherein, the media information of the remote terminal device includes images, videos and / or audio; In this embodiment, the target user's information selection instruction on the mobile phone screen is combined with the information selection instruction to select media information such as patterns, videos, and / or audio from the remote terminal device. For example, if the target user makes a five-finger grasping motion in front of the mobile phone screen, it indicates that the second target user intends to select the current media information on the mobile phone screen. At this time, the five-finger grasping motion can represent carrying the current media information on the mobile phone screen. Similarly, if the target user makes a finger pointing motion in front of the mobile phone screen, it indicates that the second target user intends to select the current media information on the mobile phone screen. At this time, the finger pointing motion can represent carrying the current media information on the mobile phone screen.

[0045] Step S140: The media information of the selected remote terminal device is sent to the vehicle so that the vehicle's welcome lights output the media information of the remote terminal device.

[0046] In this embodiment, since the vehicle and the remote terminal device are in a connected state, the current media information of the mobile phone screen selected by the target user can be sent to the vehicle so that the vehicle's welcome lights can output the current media information of the mobile phone held by the target user for projection display.

[0047] In one exemplary embodiment, please refer to... Figure 2 As shown, in order to ensure the quality and stability of media information transmission from the remote terminal device to the vehicle and the projection through the vehicle's welcome lights, this embodiment applies a gesture-based welcome light projection control method to the terminal device, which further includes at least steps S141 and S142, as follows: Step S141: Optimize the transmission of media information of the selected remote terminal device based on the interconnection signal strength; Step S142: The optimized media information of the remote terminal device is sent to the vehicle so that the vehicle's welcome lights output the optimized media information of the remote terminal device; wherein, the media information of the remote terminal device includes patterns, video and / or audio.

[0048] In this embodiment, since the vehicle and the remote terminal device are interconnected via Bluetooth, WLAN, UWB, or cellular communication networks, the distance between them will affect the transmission of media information from the selected remote terminal device. Therefore, this embodiment optimizes the transmission of media information from the selected remote terminal device based on the interconnection signal strength between the vehicle and the remote terminal device. For example, if the interconnection signal strength between the vehicle and the remote terminal device is weak, and the selected media information from the remote terminal device is video information with a 4K ultra-high-definition resolution, then before transmitting the selected video information to the vehicle, the selected video information is seamlessly switched using SVC (Scalable Video Coding) technology, reducing the resolution to 1080P full high-definition. This reduces the resolution of the video information, and the optimized video information is then sent to the vehicle so that the vehicle's welcome lights output the optimized video information. This ensures the quality and stability of subsequent media information transmission to the vehicle, as well as the quality and stability of the projection through the vehicle's welcome lights.

[0049] It should be understood that the SVC technology used in the process of optimizing the transmission of media information of the selected remote terminal devices is only an example and can be selected according to the actual application scenario. No specific limitation is made here.

[0050] In one exemplary embodiment, please refer to... Figure 3 As shown, when the remote terminal device and the vehicle are in a connected state, in order to improve the convenience of user operation and user experience, this embodiment applies a welcome light projection control method based on air gestures to the terminal device, which at least includes steps S210 and S220, as follows: Step S210: Obtain the target user's secondary air gesture action; Step S220: Control the media information output by the welcome light according to the secondary air gesture action.

[0051] Among them, the secondary air gesture action is to collect the target user's hand position, hand shape and hand movement trajectory in real time, so as to confirm the secondary air gesture action based on the target user's hand position, hand shape and hand movement trajectory, thereby obtaining secondary air gesture actions such as palm open and hold action, palm open and slide left and right action, finger slide left and right action, palm open and slide up and down action, finger slide up and down action, finger rotate and draw circle action, finger draw specific letter action, etc.

[0052] The aforementioned method involves acquiring secondary air gestures via sensors on a remote terminal device and transmitting the corresponding target user intent to the vehicle. This allows the vehicle to issue corresponding control commands based on the target user's intent, enabling the vehicle to control the media information output by the welcome lights based on the target user's secondary air gesture. For example, if the target user extends their hand and makes an open-palm gesture in front of the sensor on the remote terminal device, the corresponding target user intent could be to pause playback. In other words, the target user issues a command to pause the media information output by the vehicle's welcome lights. Upon receiving this command, the media information output by the welcome lights will pause.

[0053] When the target user extends their hand and makes a palm-opening, left-right sliding motion or a finger-sliding motion in front of the sensor on the remote terminal device, the target user's intention can be to play the previous video, play the next video, play the previous pattern, or play the next pattern. In other words, the target user issues a command to switch the media information of the vehicle's welcome lights to play the previous / next video or the previous / next pattern. At this time, the vehicle issues a command to switch the media information playback of the welcome lights up or down, and the media information of the welcome lights will switch to play the previous video, the next video, the previous pattern, or the next pattern.

[0054] When a target user extends their hand and makes a sliding motion with their palm and fingers in front of the sensor on a remote terminal device, the target user's intention is to increase or decrease the volume of the audio playback. In other words, the target user issues an audio volume adjustment command for the media information of the vehicle's welcome lights. At this time, the vehicle sends an audio volume adjustment command for the media information of the welcome lights, thus adjusting the audio volume. It should be understood that the media display content involved in adjusting the audio volume refers to the media display of the welcome lights being video information.

[0055] When the target user extends their hand and makes a circular motion with their finger in front of the sensor on the remote terminal device, the target user's intention is to rotate the media information display of the welcome lights clockwise or counterclockwise. In other words, the target user issues a command to rotate the media display of the vehicle's welcome lights. At this time, the vehicle sends a command to rotate the media information display of the welcome lights, and the media information of the welcome lights will rotate clockwise or counterclockwise.

[0056] When a target user extends their hand and makes a gesture of drawing a specific letter with their finger in front of the sensor of a remote terminal device, the target user's intention is to take a screenshot of the media information of the remote terminal device. In other words, the target user needs to take a screenshot of the media information of the remote terminal device and then project it onto the media of the vehicle's welcome lights. At this time, the vehicle receives the screenshot of the media information from the remote terminal device and then controls the welcome lights to project the screenshot onto the display.

[0057] Through the above embodiments, after the step of sending the media information of the selected remote terminal device to the vehicle, the sensors of the remote terminal device continue to detect the target user's secondary air gesture in real time. This allows the welcome lights on the vehicle to continue to execute the target user's instructions based on the target user's secondary air gesture, thereby controlling the media information output by the vehicle's welcome lights. This solves the problem of the cumbersome process of controlling and switching the welcome light pattern on the vehicle through the central control screen inside the vehicle, and improves the convenience of switching the welcome light projection display on the vehicle and the user experience.

[0058] In conjunction with the gesture-based welcome light projection control method for remote terminal devices described in the above embodiments, this application further includes a gesture-based welcome light projection control method for vehicles to address the aforementioned problems. This method solves the cumbersome switching of welcome light patterns on vehicles in related technologies, improving the convenience of switching welcome light projection displays and enhancing the user experience. In this gesture-based welcome light projection control method, the executing entity can be a server, a vehicle domain controller, a cockpit domain controller, or other processing devices. In some possible implementations, this gesture-based welcome light projection control method can be implemented by a processor calling computer-readable instructions stored in memory.

[0059] Specifically, please refer to, for example Figure 4 As shown, the welcome light projection control method based on air gestures in this embodiment is applied to vehicles, and the method includes the following steps: Step S310: When the vehicle and the remote terminal device are in a connected state, the air gesture action of the target user is acquired.

[0060] The phrase "vehicle and remote terminal device are in a connected state" means that the vehicle and remote terminal device have been pre-bound and matched. The vehicle and remote terminal can be in the same local area network, enabling the vehicle and remote terminal to transmit and communicate with each other through Bluetooth, WLAN, UWB, cellular communication networks, etc.

[0061] Furthermore, in order to ensure that the vehicle and the remote terminal device are in a connected state, the welcome light projection control method based on air gestures in this embodiment also includes: real-time detection of whether the remote terminal device pre-bound to the vehicle enters the vehicle's preset area range; if so, pairing and connecting the remote terminal device that has entered the vehicle's preset area range with the vehicle, so that the vehicle and the remote terminal device are in a connected state.

[0062] It should be noted that the vehicle's preset area range refers to the pre-defined area within which the vehicle can connect. When the bound terminal device enters the vehicle's connectable area, the bound terminal device can pair and connect with the vehicle. Here, the vehicle's preset area range can be a circular area with the vehicle as the center and a radius of 5m, or a circular area with the vehicle as the center and a radius of 10m. There is no specific limitation on the vehicle's preset area range; it is set according to the actual application scenario.

[0063] For example, if the remote terminal device is a mobile phone, that is, the vehicle and the target user's mobile phone are pre-bound and matched. When the target user approaches the already bound and matched vehicle and enters the vehicle's connectable area, the bound mobile phone carried by the target user is within the vehicle's connectable area, so that the vehicle and the remote terminal device are paired and connected to each other. At this time, the target user's mobile phone and the vehicle are in a connected state. At this time, the vehicle can obtain the target user's five-finger opening action or finger sliding action, etc., air gesture actions.

[0064] In the above embodiments, to enable the vehicle and the remote terminal device to be in a connected state and to obtain the target user's air gesture actions through the sensors on the vehicle, it is necessary to enable the remote terminal device's Bluetooth, WLAN, location, and application background running permissions in advance, and enable the vehicle's Bluetooth, WLAN, location, application background running, and wireless hotspot permissions in advance. Furthermore, the remote terminal device and the vehicle need to meet the transmission protocol and security authentication requirements.

[0065] Step S320: Recognize and analyze the air gesture action to obtain the first target user intent corresponding to the air gesture action.

[0066] The first target user intent obtained by the vehicle includes information transmission instructions and projection control instructions. That is, the first target user intent represents transmitting the media information obtained by the target user on the remote terminal device to the vehicle, and after transmission to the vehicle, projecting the media information obtained by the target user on the remote terminal device.

[0067] Further, please refer to, for example Figure 5 As shown, in order to accurately recognize and analyze the air gesture actions of the target user, the welcome light projection control method based on air gestures also includes steps S311 and S312, as follows: Step S311: Obtain the hand position, hand shape, and hand movement trajectory of the target user; Step S312: Determine whether the target user's air gesture is a five-finger spread or finger sliding action based on the hand position, hand shape and hand movement trajectory.

[0068] In this embodiment, when the target user extends their hand into the area that the vehicle's sensors can recognize, the vehicle's sensors will immediately activate, collect the target user's hand position, hand shape, and hand movement trajectory, and determine whether the air gesture is a five-finger spread or finger sliding action based on the collected target user's hand position, hand shape, and hand movement trajectory.

[0069] It should be understood that the vehicle sensors used to recognize the air gestures of the target user are limited according to the actual application. For example, the sensors on the vehicle may include, but are not limited to, radar sensors, cameras, infrared transceivers, etc., to collect and recognize the position, shape and movement trajectory of the target user's hand.

[0070] Radar sensors can include lidar sensors, millimeter-wave radar sensors, etc., without specific limitations. By transmitting signals and receiving reflected signals, they can calculate the target user's rotation angle, tilt angle, and other gestures in real time.

[0071] An infrared transceiver is a device that emits infrared light and calculates the reflection time to generate a depth image (3D point cloud) of the target object. In other words, the infrared transceiver on the vehicle can be used to directly obtain the spatial coordinates of the target user's hand, thereby extracting the position of the target user's hand joints.

[0072] A camera is a device that captures images of a target object using visible light, preprocesses the image to highlight the hand, and directly obtains the object's shape and other features. In other words, a camera on a vehicle can directly capture the shape of the target user's hand.

[0073] In this embodiment, the vehicle's radar sensor, infrared transceiver, and front-facing camera can be fused to detect the target user's hand position, hand shape, and hand movement trajectory when the target user extends their hand into the area that the vehicle's sensors can recognize, thereby determining the target user's air gesture action and improving the accuracy of the air gesture action recognition.

[0074] At the same time, the five-finger spreading action or finger sliding action is matched with preset control commands to determine the first target user intent corresponding to the five-finger spreading action or finger sliding action, so that the vehicle can execute the corresponding control command based on the first target user intent corresponding to the five-finger spreading action or finger sliding action.

[0075] It should be noted that the identification and analysis of the target user's air gestures can be achieved by combining a large number of air gesture actions and training and optimizing based on AI algorithms and machine learning models. This allows for accurate identification of the target user's air gesture actions, confirming the primary target user's intent, and enabling the vehicle to execute corresponding control commands. For example, in this embodiment, the five-finger spreading action or finger sliding action represents the information transmission command and projection control command issued by the target user.

[0076] Step S330: Receive media information from the remote terminal device according to the information transmission instruction; wherein, the media information from the remote terminal device includes images, video, and / or audio; In this embodiment, the target user's information transmission command to the vehicle is combined with the information transmission command to receive media information such as images, videos, and / or audio from the remote terminal device to the vehicle. For example, if the target user makes a five-finger spreading motion in the area recognizable by the vehicle's sensors, it indicates that the first target user intends to receive media information such as images, videos, and / or audio from the selected remote terminal device to the vehicle. Similarly, if the target user makes a finger sliding motion in the area recognizable by the vehicle's sensors, it indicates that the first target user intends to receive media information such as images, videos, and / or audio from the selected remote terminal device to the vehicle.

[0077] It should be noted that, before transmitting the information from the remote terminal device to the vehicle, the transmission of the media information selected on the remote terminal device is optimized based on the interconnection signal strength between the vehicle and the remote terminal device. Therefore, the vehicle can correspondingly decode the optimized media information, thereby improving the quality and stability of the media information output by the vehicle's welcome lights.

[0078] Step S340: Control the welcome lights to start and output the received media information according to the projection control command.

[0079] Among them, vehicle welcome lights may include, but are not limited to, color DLP (Digital Light Processing) equipment, laser projection equipment, etc., which can realize dynamic projection of vehicle welcome lights and can realize the switching of projection media information.

[0080] Based on the aforementioned projection control commands from the target user to the vehicle, media information such as patterns, videos, and / or audio received from the vehicle's remote terminal device is projected and displayed through the vehicle's welcome lights according to the projection control commands. For example, if the target user makes a five-finger spread gesture in the area recognizable by the vehicle's sensors, it indicates that the first target user intends to project and display media information such as patterns, videos, and / or audio received from the vehicle's remote terminal device through the vehicle's welcome lights. Similarly, if the target user makes a finger swipe gesture in the area recognizable by the vehicle's sensors, it indicates that the first target user intends to project and display media information such as patterns, videos, and / or audio received from the vehicle's remote terminal device through the vehicle's welcome lights.

[0081] In one exemplary embodiment, if the media information selected by the target user's mobile phone is video information, the audio information of the video information is also transmitted to the vehicle during the transmission of the video information to the vehicle. When the vehicle projects the video information from the mobile phone through the welcome lights, it also controls the vehicle's speakers to synchronously play the audio information from the video information. This embodiment increases the immersive atmosphere of the media information projected by the vehicle's welcome lights, thereby enhancing the user experience provided by the vehicle's welcome lights.

[0082] Through the above embodiments, when the vehicle is in a connected state with the remote terminal device, by obtaining the air gesture actions of the target user, such as the action of spreading the five fingers or the action of sliding the fingers, the air gesture actions are recognized and analyzed to determine the first target user intention represented by the air gesture actions. If the obtained air gesture action of the target user is the action of spreading the five fingers or the action of sliding the fingers, it is determined that the first target user intention includes an information transmission instruction and a projection control instruction on the remote terminal device. Then, according to the information transmission instruction, the media information on the remote terminal device is received by the vehicle, and at the same time, according to the projection control instruction, the welcome light is controlled to start and output the media information such as the pattern, video, and / or audio received by the remote terminal device; thus, after the target user approaches the vehicle and the vehicle is connected to the remote terminal device held by the target user, combined with the air gesture actions of the target user, the user can customize and upload the pattern, video, and / or audio to the vehicle by using the remote terminal device, and project and play them with the welcome light of the vehicle, so as to achieve the linkage between the remote terminal device of the user and the projection display of the welcome light of the vehicle, which can solve the problem that the display of the welcome light on the vehicle is controlled and switched through the central control screen in the vehicle, which is relatively cumbersome, and improves the convenience of switching the projection pattern of the welcome light on the vehicle and the user experience.

[0083] In an exemplary embodiment, in order to improve the projection display effect of the vehicle welcome light, the method for controlling the projection of the welcome light based on air gestures applied to the vehicle in this embodiment further includes adjusting the projection parameters of the welcome light, specifically as follows: After the welcome light is started, obtain the projection material, ambient brightness, obstacles in the projection area, and obtain the current vehicle attitude of the vehicle and the weather condition at the location where the vehicle is located; Adjust the projection parameters of the welcome light according to the projection material, the ambient brightness, the obstacles, the current vehicle attitude, and / or the weather condition.

[0084] In this embodiment, the projection parameters of the welcome light include brightness, contrast, saturation, projection focal length, projection angle, projection range, and trapezoidal correction value; after the vehicle welcome light is started, the sensors on the vehicle will obtain the projection material, ambient brightness, obstacles in the projection area, the current vehicle attitude of the vehicle, and the weather condition at the location where the vehicle is located, so as to adjust the projection parameters such as the brightness, contrast, saturation, focal length, and trapezoidal correction value of the welcome light according to the obtained projection material, ambient brightness, obstacles, current vehicle attitude, and / or weather condition, so as to improve the projection display effect of the vehicle welcome light.

[0085] It should be noted that since the projection area of ​​the welcome lights can be various surfaces such as wooden floors, tiled floors, cement floors, epoxy flooring, walls, and lawns, this embodiment uses sensors such as infrared sensors, cameras, lidar sensors, and ultrasonic radar sensors on the vehicle to identify the projection material of the welcome light projection area. This allows for confirmation of the projection material, and the projection parameters of the welcome lights are adjusted accordingly. For example, if the projection material is a rough material such as wooden flooring, the reflectivity is low. In this case, the brightness and color saturation of the welcome lights can be increased to enhance the clarity of the projected image. Conversely, if the projection material is a smooth material such as tile, the reflectivity is high. In this case, the brightness of the welcome lights can be reduced to avoid overexposure of the projected image. Simultaneously, the contrast can be adjusted to ensure clear layering in the projected image.

[0086] It should be understood that infrared sensors and cameras can acquire images of the welcome light projection area and use deep learning models (such as convolutional neural networks, CNNs) to extract texture features, thereby identifying the projection material of the welcome light projection area. For example, the wood grain of a wooden floor, the glaze reflection of a tile floor, and the rough particles of a cement floor can all be used as classification criteria; identifying the seams in the welcome light projection area (such as the rectangular boundaries of a tile floor and the mortise and tenon structure of a wooden floor) can help distinguish the projection material. LiDAR sensors can generate 3D point cloud data of the welcome light projection area by emitting pulsed light and measuring the echo time of the received pulsed light, thus identifying the projection material. For example, wooden floors have a higher roughness value due to their minute surface bumps, while the glaze of a tile floor is relatively smooth. Ultrasonic sensors can identify the projection material of the welcome light projection area by observing the different reflection intensities and attenuation rates of ultrasonic waves on different material surfaces. For example, metal or tile surfaces reflect strongly and attenuate slowly, while carpets or rubber absorb more sound waves.

[0087] Because the ambient light intensity varies depending on the vehicle's location, this embodiment uses light sensors and cameras on the vehicle to monitor the ambient light intensity in real time. In bright environments such as daytime or when there is sufficient light, the projection brightness of the vehicle's welcome lights needs to be increased, and the contrast needs to be enhanced to resist interference from ambient light. In dim environments such as nighttime or when there is less light, the projection brightness of the vehicle's welcome lights needs to be reduced to reduce energy consumption. At the same time, the saturation and contrast need to be adjusted so that users can have a more comfortable viewing experience.

[0088] Since there may be obstacles in the projection area of ​​the welcome lights, this embodiment uses cameras, lidar sensors, ultrasonic sensors, etc. to monitor the obstacles in the projection area of ​​the welcome lights in real time. When it is found that there are obstacles in the projection area of ​​the welcome lights, the vehicle's welcome lights can be controlled to adjust the projection angle or reduce the projection range to avoid the obstacles.

[0089] Due to the vehicle's parking position, the vehicle may not be on a level surface, which may cause the projection of the welcome lights to be tilted. In this embodiment, the vehicle's posture and the tilt angle of the welcome light projection are monitored in real time through the vehicle's IMU, camera, etc. When the vehicle's posture changes due to movement, tilting, bumps, etc., the vehicle's welcome lights can be controlled to perform trapezoidal correction to ensure that the projection of the welcome lights is rectangular and to avoid distortion of the projection image.

[0090] Since the weather varies depending on the vehicle's location, this embodiment obtains real-time weather information through the vehicle's rain sensor and weather data interface. In severe weather conditions such as rain, snow, or fog, the vehicle's welcome lights can be controlled to increase brightness and improve the visibility of the projected pattern.

[0091] In the above embodiments, noise reduction can also be applied to the projected media information of the vehicle welcome lights. For example, low-quality video sources of the projected media information can be reduced in graininess and improved in clarity using AI noise reduction algorithms (such as the FastDVDNet algorithm). If the projection occurs while the vehicle is in motion, the vehicle welcome lights can also be controlled to enable electronic image stabilization (EIS) or optical image stabilization (OIS) to reduce image jitter.

[0092] In one exemplary embodiment, to enhance the user experience, the gesture-based welcome light projection control method applied to a vehicle further includes: Once the target user is detected entering the vehicle's cabin, the welcome lights are turned off and a media information storage command is output. The media information output by the welcome light is stored according to the media information storage instruction, so as to store the media information in the cloud and / or the vehicle's local storage.

[0093] In this embodiment, once the vehicle door is opened, seat sensors, and in-cabin cameras detect the target user entering the vehicle's cabin, the vehicle can issue a welcome light off command to control the welcome lights to turn off, saving energy. At the same time, the vehicle can also issue a media information storage command to store the media information from the remote terminal device in the cloud and / or locally in the vehicle. This allows the vehicle to directly access the media information stored in the cloud and / or locally in the vehicle for projection display, and also allows the user to transmit customized media information to the vehicle for storage and projection display via a remote terminal device.

[0094] It should be noted that users can also delete media information stored in the cloud and / or locally in the vehicle via the vehicle's central control screen.

[0095] Figure 6 A schematic diagram of an embodiment of the air gesture-based welcome light projection control device for vehicles, as described in this application, is shown. Please refer to... Figure 6 As shown, the welcome light projection control device 400 based on air gestures includes a gesture acquisition module 410, an intent determination module 420, a receiving and parsing module 430, and a projection control module 440. The gesture acquisition module 410 is used to acquire the air gesture of the target user when the vehicle and the remote terminal device are in a connected state; wherein the air gesture is a five-finger opening action or a finger sliding action. The intent determination module 420 is used to acquire a first target user intent corresponding to the air gesture action; wherein, the first target user intent includes an information transmission instruction and a projection control instruction; The information receiving module 430 is used to receive media information from the remote terminal device according to the information transmission instruction; wherein, the media information of the remote terminal device includes images, video and / or audio; The projection control module 440 is used to control the welcome lights to start and output the received media information according to the projection control command.

[0096] It should be noted that the welcome light projection control device 400 based on air gestures provided in the above embodiments and the welcome light projection control method based on air gestures provided in the aforementioned embodiments belong to the same concept. The specific way in which each module and unit performs operations has been described in detail in the method embodiments, and will not be repeated here.

[0097] Figure 7 The diagram illustrates the structure of an embodiment of the vehicle described in this application, and also shows the structure of a computer system suitable for implementing the vehicle in this application. The specific embodiments of this application do not limit the specific implementation of the vehicle.

[0098] Please see Figure 7 As shown, the vehicle includes: a controller; and a memory for storing one or more programs, which, when executed by the controller, perform the aforementioned welcome light projection control method based on air gestures.

[0099] Please continue reading. Figure 7 As shown, the vehicle's computer system 500 includes a Central Processing Unit (CPU) 501, which can perform various appropriate actions and processes, such as executing the methods described in the above embodiments, based on programs stored in Read-Only Memory (ROM) 502 or programs loaded from storage portion 508 into Random Access Memory (RAM) 503. The RAM 503 also stores various programs and data required for system operation. The CPU 501, ROM 502, and RAM 503 are interconnected via a bus 504. An Input / Output (I / O) interface 505 is also connected to the bus 504.

[0100] The following components are connected to I / O interface 505: an input section 506 including a keyboard, mouse, etc.; an output section 507 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 508 including a hard disk, etc.; and a communication section 509 including a network interface card such as a LAN (Local Area Network) card, modem, etc. The communication section 509 performs communication processing via a network such as the Internet. A drive 510 is also connected to I / O interface 505 as needed. A removable medium 511, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on drive 510 as needed so that computer programs read from it can be installed into storage section 508 as needed.

[0101] Specifically, according to embodiments of this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program including a computer program for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 509, and / or installed from removable medium 511. When the computer program is executed by central processing unit (CPU) 501, it performs various functions defined in the system of this application.

[0102] Another aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the gesture-based welcome light projection control method described above. This computer-readable storage medium may be included in the vehicle described in the above embodiments, or it may exist independently and not be installed in the vehicle.

[0103] Another aspect of this application provides a computer program product or computer program including at least one executable instruction that, when executed on a gesture-based welcome light projection control device / vehicle, causes the gesture-based welcome light projection control device / vehicle to perform the gesture-based welcome light projection control method as described below: When the vehicle and the remote terminal device are connected, the air gesture of the target user is acquired; wherein, the air gesture is a five-finger spreading action or a finger sliding action; The air gesture action is identified and analyzed to obtain the first target user intent corresponding to the air gesture action; wherein, the first target user intent includes information transmission instructions and projection control instructions; The media information of the remote terminal device is received according to the information transmission instruction; wherein the media information of the remote terminal device includes images, video and / or audio. The welcome lights are activated and the received media information is output according to the projection control command.

[0104] In one alternative approach, the executable instructions can also be used to cause the gesture-based welcome light projection control device / vehicle to perform the following operations: The target user's hand position, hand shape, and hand movement trajectory are obtained. Based on the hand position, hand shape, and hand movement trajectory, determine whether the target user's air gesture is a five-finger spread or finger sliding motion.

[0105] In one alternative approach, the executable instructions can also be used to cause the gesture-based welcome light projection control device / vehicle to perform the following operations: After the welcome lights are activated, the projection material, ambient brightness, and obstacles in the projection area are obtained, as well as the current vehicle posture and the weather conditions at the vehicle's location are obtained. The projection parameters of the welcome light are adjusted according to the projection material, the ambient light level, the obstacles, the current vehicle posture, and / or the weather conditions; wherein the projection parameters of the welcome light include brightness, contrast, saturation, projection focal length, projection angle, projection range, and keystone correction value.

[0106] In an optional manner, the executable instructions may specifically further be used to cause the gesture-based welcome light projection control device / vehicle to perform the following operations: When it is detected that the target user enters the cockpit of the vehicle, control the welcome light to turn off and output a media information storage instruction; Store the media information output by the welcome light according to the media information storage instruction, so as to store the media information in the cloud and / or locally in the vehicle.

[0107] In an optional manner, the executable instructions may specifically further be used to cause the gesture-based welcome light projection control device / vehicle to perform the following operations: Real-time detect whether a remote terminal device pre-bound to the vehicle enters the preset area range of the vehicle; If so, pair and connect the remote terminal device that enters the preset area range of the vehicle with the vehicle, so that the vehicle and the remote terminal device are in a connected state.

[0108] The gesture-based welcome light projection control method according to an embodiment of the present application is applied to a vehicle. When the vehicle and a remote terminal device are in a connected state, by obtaining an air gesture action such as the target user's five fingers spreading or finger sliding, the air gesture action is recognized and analyzed to determine the first target user intention represented by the air gesture action. If the obtained air gesture action of the target user is the five fingers spreading or finger sliding action, it is determined that the first target user intention includes an information transmission instruction and a projection control instruction on the remote terminal device. Then, according to the information transmission instruction, the media information on the remote terminal device is received by the vehicle, and at the same time, according to the projection control instruction, the welcome light is controlled to start and output the received media information such as patterns, videos, and / or audios of the remote terminal device, so as to achieve that after the target user approaches the vehicle and the vehicle is connected to the remote terminal device held by the target user, combined with the air gesture action of the target user, the user can customize and upload patterns, videos, and / or audios to the vehicle by using the remote terminal device, and project and play them by means of the welcome light of the vehicle, so as to achieve the linkage between the remote terminal device of the user and the welcome light projection display of the vehicle, which can solve the problem that the welcome light pattern on the vehicle is controlled and switched through the central control screen in the vehicle, which is relatively cumbersome, and improve the convenience of switching the welcome light projection display on the vehicle and the user experience.

[0109] Another aspect of the present application further provides a computer program product or a computer program. The computer program product or the computer program includes at least one executable instruction. When the executable instruction runs on a remote terminal device, it causes the remote terminal device to perform the gesture-based welcome light projection control method described below: When the vehicle and the remote terminal device are connected, the air gesture action of the target user is acquired; wherein, the air gesture action is a five-finger grasping action or a finger pointing action; The air gesture action is identified and analyzed to obtain a second target user intent corresponding to the air gesture action; wherein, the second target user intent includes an information selection instruction; Select media information of the remote terminal device according to the information selection instruction; wherein, the media information of the remote terminal device includes images, videos and / or audio; The media information of the selected remote terminal device is sent to the vehicle so that the vehicle's welcome lights output the media information of the remote terminal device.

[0110] In an alternative approach, the executable instructions can also be used to cause the remote terminal device to perform the following operations: The transmission of media information from the selected remote terminal devices is optimized based on the strength of the interconnect signal. The optimized media information of the remote terminal device is sent to the vehicle so that the vehicle's welcome lights output the optimized media information of the remote terminal device.

[0111] In an alternative approach, the executable instructions can also be used to cause the remote terminal device to perform the following operations: Acquire the target user's secondary air gesture action; The media information display of the welcome lights is controlled according to the secondary air gesture actions; wherein, the secondary air gesture actions include the action of keeping the palm open, the action of sliding the palm open to the left and right, the action of sliding the fingers to the left and right, the action of sliding the palm open up and down, the action of sliding the fingers up and down, the action of rotating the fingers to draw a circle, or the action of drawing specific letters with the fingers.

[0112] It should be noted that the computer-readable medium shown in the embodiments of this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying a computer-readable computer program. The transmitted data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. The computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, etc., or any suitable combination thereof.

[0113] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. Each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0114] The units described in the embodiments of this application can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself.

[0115] According to one aspect of the embodiments of this application, a computer system is also provided, including a Central Processing Unit (CPU), which can perform various appropriate actions and processes based on a program stored in read-only memory (ROM) or a program loaded from storage into random access memory (RAM), such as performing the methods described above. Various programs and data required for system operation are also stored in the RAM. The CPU, ROM, and RAM are interconnected via a bus. Input / output (I / O) interfaces are also connected to the bus.

[0116] The following components are connected to the I / O interface: input components including keyboards, mice, etc.; output components including cathode ray tubes (CRTs), liquid crystal displays (LCDs), and speakers; storage components including hard drives; and communication components including network interface cards such as LAN (Local Area Network) cards and modems. The communication components perform communication processing via networks such as the Internet. Drives are also connected to the I / O interface as needed. Removable media, such as disks, optical discs, magneto-optical discs, semiconductor memories, etc., are installed on the drive as needed so that computer programs read from them can be installed into the storage components as required.

[0117] The above description is merely a preferred exemplary embodiment of this application and is not intended to limit the implementation of this application. Those skilled in the art can easily make corresponding modifications or alterations based on the main concept and spirit of this application. Therefore, the scope of protection of this application should be determined by the scope of protection claimed in the claims.

[0118] In practice, the collection and processing of data in this application should strictly comply with the requirements of relevant national laws and regulations, obtain the informed consent or separate consent of the data subject, and carry out subsequent data use and processing within the scope of laws and regulations and the authorization of the data subject.

Claims

1. A method for controlling welcome light projection based on air gestures, applied to vehicles, characterized in that, The method includes: When the vehicle and the remote terminal device are connected, the air gesture of the target user is acquired; wherein, the air gesture is a five-finger spreading action or a finger sliding action; The air gesture action is identified and analyzed to obtain the first target user intent corresponding to the air gesture action; wherein, the first target user intent includes information transmission instructions and projection control instructions; The media information of the remote terminal device is received according to the information transmission instruction; wherein, the media information of the remote terminal device includes images, videos and / or audio. The welcome lights are activated and the received media information is output according to the projection control command.

2. The welcome light projection control method based on air gestures according to claim 1, characterized in that, The method further includes: The target user's hand position, hand shape, and hand movement trajectory are obtained. Based on the hand position, hand shape, and hand movement trajectory, determine whether the target user's air gesture is a five-finger spread or finger sliding motion.

3. The welcome light projection control method based on air gestures according to claim 1, characterized in that, The method further includes: After the welcome lights are activated, the projection material, ambient brightness, and obstacles in the projection area are obtained, as well as the current vehicle posture and the weather conditions at the vehicle's location are obtained. The projection parameters of the welcome light are adjusted according to the projection material, the ambient light level, the obstacles, the current vehicle posture, and / or the weather conditions; wherein the projection parameters of the welcome light include brightness, contrast, saturation, projection focal length, projection angle, projection range, and keystone correction value.

4. The welcome light projection control method based on air gestures according to any one of claims 1 to 3, characterized in that, The method further includes: Once the target user is detected entering the vehicle's cabin, the welcome lights are turned off and a media information storage command is output. The media information output by the welcome light is stored according to the media information storage instruction, so as to store the media information in the cloud and / or the vehicle's local storage.

5. The welcome light projection control method based on air gestures according to any one of claims 1 to 3, characterized in that, Before the step of acquiring the air gesture action of the target user, the method further includes: Real-time detection of whether a remote terminal device pre-bound to the vehicle enters the vehicle's preset area range; If so, a remote terminal device that enters the preset area of ​​the vehicle will be paired and connected with the vehicle to put the vehicle and the remote terminal device in a connected state.

6. A method for controlling welcome light projection based on air gestures, applied to remote terminal equipment, characterized in that, The method includes: When the vehicle described in any one of claims 1 to 5 is in a connected state with the remote terminal device, the air gesture action of the target user is acquired; wherein, the air gesture action is a five-finger grasping action or a finger pointing action; The air gesture action is identified and analyzed to obtain a second target user intent corresponding to the air gesture action; wherein, the second target user intent includes an information selection instruction; The media information of the remote terminal device is selected according to the information selection instruction; wherein, the media information of the remote terminal device includes images, videos and / or audio; The media information of the selected remote terminal device is sent to the vehicle so that the vehicle's welcome lights output the media information of the remote terminal device.

7. The welcome light projection control method based on air gestures according to claim 6, characterized in that, The method further includes: The transmission of media information from the selected remote terminal devices is optimized based on the strength of the interconnect signal. The optimized media information of the remote terminal device is sent to the vehicle so that the vehicle's welcome lights output the optimized media information of the remote terminal device; wherein, the media information of the remote terminal device includes patterns, video and / or audio.

8. The welcome light projection control method based on air gestures according to claim 6, characterized in that, After the step of sending the media information of the selected remote terminal device to the vehicle, the method further includes: Acquire the target user's secondary air gesture action; The media information output by the welcome lights is controlled by the secondary air gesture action.

9. A welcome light projection control device based on air gestures, applied to vehicles, characterized in that, The device includes: The gesture acquisition module is used to acquire the air gesture actions of the target user when the vehicle and the remote terminal device are in a connected state; wherein, the air gesture action is a five-finger spreading action or a finger sliding action; An intent determination module is used to acquire a first target user intent corresponding to the air gesture action; wherein, the first target user intent includes an information transmission instruction and a projection control instruction; The information receiving module is used to receive media information from the remote terminal device according to the information transmission instruction; The projection control module is used to control the welcome lights to start and output the received media information according to the projection control command; wherein, the media information of the remote terminal device includes patterns, videos and / or audio.

10. A vehicle, characterized in that, include: Controller; A memory for storing one or more programs, which, when executed by a controller, cause the controller to implement the welcome light projection control method based on air gestures as described in any one of claims 1 to 5.

Images