Control method of vehicle-mounted projection device, vehicle-mounted projection device, and vehicle

Abstract

This application provides a control method for an in-vehicle projection device, the in-vehicle projection device itself, and a vehicle. The method includes: acquiring vehicle status information when a start button is triggered; if the vehicle status meets driving conditions, preventing projection from starting and sending a prompt message to the vehicle's infotainment system; otherwise, starting projection. The in-vehicle projection device of this application is connected to the vehicle and can actively acquire vehicle status information. When the start button is triggered, it determines whether safe starting conditions are met based on the vehicle status information. When the vehicle is in motion, a prompt message is sent to the vehicle's infotainment system to promptly remind the driver that the in-vehicle projection device has been accidentally activated. When the vehicle is not in motion, projection is started, satisfying the playback needs of the in-vehicle projection device without affecting driving safety.

Description

Technical Field

[0001] This application relates to the field of vehicle control technology, and in particular to a control method for an in-vehicle projection device, an in-vehicle projection device, and a vehicle. Background Technology

[0002] With the increasing demand for large screens and intelligent features in automobiles, some car manufacturers have introduced projectors into vehicles. These projectors are typically portable, fixed to the headrests of the second or third-row seats using a bracket. They require installation by the owner and must be removed and stored in the trunk when not in use. However, in practice, some owners, for convenience, leave the projector mounted in the car, leading to accidental activation by rear passengers. For example, a child standing in the seat might accidentally press the power button, or an object or body part might accidentally touch the button. In such cases, the projector's activation, through reflection and refraction through the glass, can interfere with the driver's experience, thus affecting driving safety. Summary of the Invention

[0003] This application provides a control method for an in-vehicle projection device, an in-vehicle projection device, and a vehicle, to solve the problem that starting an in-vehicle projection device affects driving safety.

[0004] In a first aspect, embodiments of this application provide a control method for an in-vehicle projection device, including:

[0005] When the start button is triggered, obtain vehicle status information;

[0006] When the vehicle meets the driving conditions, the projection should be disabled and a prompt message should be sent to the vehicle's infotainment system; otherwise, the projection should be enabled.

[0007] In one possible implementation, the driving conditions include: the vehicle speed is greater than zero, or the vehicle speed is zero and the vehicle is in reverse, drive, sport, or neutral.

[0008] In one possible implementation, after initiating the projection, the following is also included:

[0009] The linkage signal is sent to the linkage device via short-range wireless communication; wherein the linkage device includes one or more of the following: seat, interior lights, interior fragrance device, sunshade, window, car audio system and interior air conditioning.

[0010] In one possible implementation, the in-vehicle projection device is connected to the seat controller, the interior lighting controller, the interior fragrance device controller, the blackout curtain controller, the window controller, the in-vehicle audio controller, and the in-vehicle air conditioning controller, respectively.

[0011] In one possible implementation, the vehicle-mounted projection device is connected to the controller of each linkage device based on one or more of the Bluetooth protocol, WiFi protocol, and wireless short-range communication module.

[0012] In one possible implementation, prior to acquiring the vehicle status information, the following is also included:

[0013] Confirm the application mode of the vehicle-mounted projection equipment;

[0014] When the application mode is in vehicle mode, the operation of obtaining vehicle status information is performed.

[0015] In one possible implementation, prior to the activation button being triggered, the following is also included:

[0016] Upon power-on startup, the associated module is activated, and the associated module is controlled to broadcast associated signals;

[0017] Upon receiving an association feedback signal from an in-vehicle association device, the system connects to the in-vehicle association device and enters in-vehicle mode; wherein, the association module is a Bluetooth / Wi-Fi module, a Bluetooth module, or a Wi-Fi module.

[0018] In one possible implementation, following the broadcast-associated signal, the following is also included:

[0019] Upon receiving one or more associated feedback signals, the associated feedback signals are parsed to determine the device information corresponding to the associated feedback signals.

[0020] In one possible implementation, after determining the device information corresponding to the associated feedback signal by parsing the associated feedback signal, the method further includes:

[0021] If no association feedback signal is received from the vehicle-mounted associated device, connect to the associated device corresponding to the first received association feedback signal.

[0022] In one possible implementation, following the broadcast-associated signal, the following is also included:

[0023] Upon receiving one or more associated feedback signals, connect to the corresponding temporary device based on the first associated feedback signal received;

[0024] Send a device information request instruction to the temporary device.

[0025] In one possible implementation, after sending the device information request instruction to the temporary device, the method further includes:

[0026] If no reply is received, enter home mode; or, if the temporary device is a non-vehicle-associated device, connect to the non-vehicle-associated device and enter home mode, using the temporary device as a remote control.

[0027] Secondly, embodiments of this application provide a control device for an in-vehicle projection device, comprising:

[0028] The acquisition module is used to acquire vehicle status information when the start button is triggered;

[0029] The control module is used to prevent the projection from starting when the vehicle status meets the driving conditions; otherwise, the projection is started.

[0030] The sending module is used to send a prompt message to the vehicle's infotainment system when projection is disabled.

[0031] In one possible implementation, the driving conditions include: the vehicle speed is greater than zero, or the vehicle speed is zero and the vehicle is in reverse, drive, sport, or neutral.

[0032] In one possible implementation, the transmitting module is further configured to transmit a linkage signal to the linkage device via near-field wireless communication after the projection is activated; wherein the linkage device includes one or more of the following: seat, interior lights, interior fragrance device, sunshade, window, car audio system, and interior air conditioning.

[0033] In one possible implementation, the transmitting module includes one or more of a Bluetooth module, a WiFi module, and a wireless short-range communication module.

[0034] In one possible implementation, the control module is further configured to confirm the application mode of the in-vehicle projection device before acquiring the vehicle status information.

[0035] When the application mode is in vehicle mode, the operation of obtaining vehicle status information is performed.

[0036] In one possible implementation, it further includes: an association module, which is activated upon power-on startup and broadcasts an association signal;

[0037] Upon receiving an association feedback signal from an in-vehicle association device, the system connects to the in-vehicle association device and enters in-vehicle mode; wherein, the association module is a Bluetooth / Wi-Fi module, a Bluetooth module, or a Wi-Fi module.

[0038] In one possible implementation, the association module is further configured to parse the association feedback signals to determine the device information corresponding to the association feedback signals when one or more association feedback signals are received.

[0039] In one possible implementation, the association module is further configured to connect to the association device corresponding to the first received association feedback signal when no association feedback signal is received from the vehicle-mounted association device.

[0040] In one possible implementation, the association module is further configured to connect to the corresponding temporary device based on the first received association feedback signal when one or more association feedback signals are received.

[0041] Send a device information request instruction to the temporary device.

[0042] In one possible implementation, the association module is further configured to enter home mode if no reply is received; or, when the temporary device is a non-vehicle-mounted association device, it connects to the non-vehicle-mounted association device and enters home mode, using the temporary device as a remote control.

[0043] Thirdly, embodiments of this application provide an in-vehicle projection device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of the method described in the first aspect or any possible implementation of the first aspect.

[0044] Fourthly, embodiments of this application provide a vehicle including the vehicle-mounted projection device described in the third aspect.

[0045] Fifthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the method as described in the first aspect or any possible implementation of the first aspect.

[0046] This application provides a control method for an in-vehicle projection device, the in-vehicle projection device itself, and a vehicle. By connecting the in-vehicle projection device to the vehicle, it can actively acquire vehicle status information and, when the start button is triggered, determine whether safe start conditions are met based on the vehicle status information. When the vehicle is in motion, a prompt message is sent to the vehicle's infotainment system to promptly alert the driver to accidental activation of the in-vehicle projection device. When the vehicle is not in motion, the projection is activated, satisfying the playback needs of the in-vehicle projection device without compromising driving safety. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 This is a flowchart illustrating the implementation of a control method for an in-vehicle projection device according to an embodiment of this application;

[0049] Figure 2 This is a flowchart illustrating the implementation of a control method for an in-vehicle projection device according to another embodiment of this application;

[0050] Figure 3 This is a schematic diagram of the structure of the control device for an in-vehicle projection device provided in one embodiment of this application;

[0051] Figure 4 This is a schematic diagram of the structure of an in-vehicle projection device provided in one embodiment of this application. Detailed Implementation

[0052] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0053] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0054] To make the objectives, technical solutions, and advantages of this application clearer, the following description will be provided in conjunction with the accompanying drawings and specific embodiments.

[0055] Figure 1 This is a flowchart illustrating the implementation of a control method for an in-vehicle projection device according to an embodiment of this application, as shown below. Figure 1 As shown, the method includes the following steps:

[0056] S101 acquires vehicle status information when the start button is triggered.

[0057] In this embodiment, the vehicle-mounted projection device is the main body executing the control method for the vehicle-mounted projection device. The start button is either a physical start button or a touch button located on the vehicle-mounted projection device itself. The start button is triggered when the physical start button is pressed or the touch button is touched.

[0058] The start button of the in-vehicle projection device is triggered, including normal start or accidental touch operations. Among them, accidental touch operations include the user's body part touching the touch button when there is no need to play the in-vehicle projection device, incorrect placement of items triggering the start button, or the start button being triggered by children or pets in the back row.

[0059] In a specific embodiment, the in-vehicle projection device communicates with the vehicle's integrated vehicle controller through wireless short-range communication to achieve short-distance communication between ends without network relay, thereby improving the rate at which the in-vehicle projection device obtains vehicle status information and realizing rapid linkage control between the in-vehicle projection device and the vehicle. Optionally, the corresponding protocol for wireless short-range communication is the StarFlash protocol, Bluetooth protocol, etc.

[0060] S102, when the vehicle status meets the driving conditions, prohibit starting the projection and send a prompt message to the vehicle head unit; otherwise, start the projection.

[0061] Among them, when the vehicle status meets the driving conditions, that is, the driver has a driving behavior and the vehicle is in a road driving state. At this time, starting the in-vehicle projection device will cause interference to the driver through reflection and refraction by the glass or other components in the vehicle, affecting driving safety. Therefore, it is necessary to prohibit starting the projection function when the vehicle status meets the driving conditions. At the same time, produce a prompt message to the vehicle head unit to facilitate reminding the driver to pay attention to the situation of the rear driving seat and avoid potential safety hazards, such as: the start button of the projection device is in a triggered state for a long time, or children cause damage to the projection device.

[0062] In a possible implementation, the driving conditions include: the vehicle speed is greater than zero, or the vehicle speed is zero and the vehicle is in reverse gear, forward gear, motion gear or neutral gear.

[0063] In this embodiment, when the vehicle speed is greater than zero, the vehicle is in a moving state. When the vehicle speed is zero and the vehicle is in reverse gear, forward gear, motion gear or neutral gear, although the current vehicle speed is zero and the vehicle position is fixed, the vehicle is in a temporary stop or emergency braking state, and the driver may drive the vehicle to move. At this time, starting the in-vehicle projection device will still pose a hidden danger to driving safety.

[0064] In this embodiment, by connecting the in-vehicle projection device to the vehicle, it can actively obtain vehicle status information, and when the start button is triggered, it can judge whether the safety start conditions are met according to the vehicle status information. When the vehicle is in a driving state, send a prompt message to the vehicle head unit to timely remind the driver that the in-vehicle projection device has been accidentally touched. When the vehicle is not in a driving state, start the projection to meet the playback requirements of the in-vehicle projection device without affecting driving safety.

[0065] In a possible implementation, after starting the projection, it further includes:

[0066] The linkage signal is sent to the linkage device via short-range wireless communication; the linkage device includes one or more of the following: seat, interior lights, interior fragrance device, sunshade, window, car audio system and interior air conditioning.

[0067] Optional features include: seat linkage (one-touch reclining and / or activation of massage function); interior lighting linkage (reducing interior light brightness or interactive linkage between interior lights and projected content); fragrance linkage (activating fragrance diffuser); sunshade linkage (closing sunshade); window linkage (raising windows); car speaker linkage (turning on car speakers to play projected content audio or playing projected content audio in conjunction with the car projector); and air conditioning linkage (activating recirculation mode to prevent outside noise from affecting the viewing experience or interference from the car projector's playback).

[0068] In this embodiment, the in-vehicle projection device is controlled to work in conjunction with related in-vehicle equipment to improve the viewing comfort of the in-vehicle projection device and the user's driving experience.

[0069] In one possible implementation, the in-vehicle projection device is connected to the seat controller, the interior lighting controller, the interior fragrance device controller, the sunshade controller, the window controller, the in-vehicle audio controller, and the in-vehicle air conditioning controller, respectively.

[0070] In one possible implementation, the vehicle-mounted projection device connects to the controller of each linkage device based on one or more of the Bluetooth protocol, WiFi protocol, and wireless short-range communication module.

[0071] In one specific embodiment, the vehicle-mounted projection device includes a star-flash module and broadcasts linkage signals as a management node.

[0072] Optionally, the seat controller, interior lighting controller, interior fragrance device controller, sunshade controller, window controller, car audio controller, and interior air conditioning controller are each managed nodes of the in-vehicle projection equipment, and each linkage module supports the StarFlash communication protocol.

[0073] In this embodiment, the controllers of each associated device are directly connected to the vehicle-mounted projection device. The vehicle-mounted projection device serves as the management node, and each associated device serves as the managed node, forming a communication network for an intelligent audio-visual scene to provide users with in-vehicle audio-visual services.

[0074] In specific implementations, based on the multi-point synchronization and multi-concurrency support features of the StarFlash communication protocol, after the communication network for the intelligent audio-visual scenario is constructed, when the in-vehicle projection device starts, it can simultaneously send the startup information of the in-vehicle projection device to the controllers of each associated device. The seat controller, in-vehicle lighting controller, in-vehicle fragrance device controller, sunshade controller, window controller, in-vehicle audio controller, and in-vehicle air conditioning controller synchronously execute linkage control, correspondingly adjusting the seat to recline with one touch and / or activating the massage function, reducing the brightness of the in-vehicle lights or allowing the in-vehicle lights to interact with the projected content; activating the fragrance diffuser; closing the sunshade; window linkage including raising the windows; turning on the in-vehicle speakers to play the projected content sound or playing the projected content sound in conjunction with the in-vehicle projection device; and turning on the air conditioning recirculation mode to avoid outside noise affecting the viewing effect or the in-vehicle projection device playing music to the outside.

[0075] In this embodiment, each associated device is connected to the vehicle-mounted projection device based on the StarFlash communication protocol. Based on the characteristics of StarFlash communication protocol, such as high concurrency, low latency and high synchronization, it can realize one-stop linkage of each associated device and effectively improve linkage efficiency.

[0076] Optionally, the seat controller, interior lighting controller, interior fragrance device controller, sunshade controller, window controller, car audio controller, and interior air conditioning controller are connected to the vehicle controller, which is managed as the vehicle projection device node.

[0077] In this embodiment, the vehicle controller centrally manages the controllers of each linkage device, which not only enables the linkage between each linkage device and the vehicle projection equipment, but also improves the management efficiency of the operating status of each linkage device.

[0078] In one specific embodiment, the vehicle controller and each linked device are connected based on the StarFlash communication protocol. The vehicle controller acts as the management node, and each associated device acts as the managed node, forming a communication domain for an intelligent audio-visual scenario, providing users with in-vehicle audio-visual services. Based on the StarFlash module's high concurrency, low latency, and high synchronization characteristics, one-stop linkage can be achieved, improving the linkage efficiency of each associated device.

[0079] In one possible implementation, before obtaining vehicle status information, the following is also included:

[0080] Confirm the application mode of the vehicle-mounted projection equipment;

[0081] When the application mode is in vehicle mode, perform the operation of obtaining vehicle status information.

[0082] In practical applications, in-vehicle projection devices, as independent units, can be used not only for in-vehicle projection but also for outdoor projection or home projection needs, such as outdoor projection during travel. When used for in-vehicle projection, the corresponding mode is "in-vehicle mode," while for outdoor or home projection, the corresponding mode is "home mode." In in-vehicle mode, the device connects to the vehicle's infotainment system and control unit to obtain vehicle status information and coordinate with vehicle-mounted control systems. Therefore, activating an in-vehicle projection device while the vehicle is in operation can seriously compromise driving safety.

[0083] In this embodiment, when the start button of the vehicle projection device is triggered, if it is detected that the vehicle projection device is connected to other vehicle devices, it is confirmed that the vehicle projection device is in vehicle mode, and then the operation of obtaining vehicle status information is performed to ensure that the vehicle status information can be successfully obtained and improve the control accuracy of the vehicle projection device.

[0084] In one possible implementation, before the start button is triggered, the following is also included:

[0085] Upon power-on startup, the associated module is activated, and the associated module is controlled to broadcast associated signals.

[0086] Upon receiving a correlation feedback signal from an in-vehicle associated device, it connects to the in-vehicle associated device and enters in-vehicle mode; the associated module is a Bluetooth / Wi-Fi module, a Bluetooth module, or a Wi-Fi module.

[0087] The in-vehicle projection device's optical engine is in a sleep or off state before the start button is triggered. The associated modules connected to the in-vehicle device have low power consumption and will be prioritized for startup when the in-vehicle projection device is powered on. Optionally, the in-vehicle projection device is connected to the vehicle's power system. When the vehicle engine starts, the in-vehicle projection device powers on and initiates the associated operations of the in-vehicle devices to ensure timely response when the user needs to watch a movie, while preventing accidental startup that could affect driving safety.

[0088] In different embodiments, the structure of the associated module varies depending on the vehicle configuration information. Optionally, the associated module can be an independent module or an integrated module. Among them, the associated module commonly consists of Bluetooth and Wi-Fi modules, which have relatively low power consumption. The integrated module corresponding to the Bluetooth and Wi-Fi modules is called a Bluetooth / Wi-Fi module.

[0089] In this embodiment, the association between the vehicle-mounted device and the vehicle-mounted projection device is established based on a Bluetooth module, a Wi-Fi module, or a combination of Bluetooth and Wi-Fi modules. This allows the vehicle-mounted projection device to enter vehicle mode and respond promptly when it needs to start watching a movie or when the start button is triggered, thus preventing accidental touches from affecting driving safety when the vehicle-mounted device is used as an in-vehicle device.

[0090] In one possible implementation, following the broadcast association signal, the following is also included:

[0091] Upon receiving one or more associated feedback signals, the associated feedback signals are parsed to determine the device information corresponding to the associated feedback signals.

[0092] The device information includes whether it is an in-vehicle device or a non-in-vehicle device. Specifically, it is either pre-configured at the factory or set by the user according to specific needs. For example, the associated device may be a car infotainment system, which can function as a standalone multimedia device or be added by the user when modifying the vehicle. In this case, the car infotainment system needs to be manually set as an in-vehicle device.

[0093] In this embodiment, the associated feedback signal includes device information, which facilitates the vehicle-mounted projection device to quickly establish an association with the associated device based on the associated feedback signal.

[0094] In one possible implementation, after parsing the associated feedback signal to determine the device information corresponding to the associated feedback signal, the method further includes:

[0095] If no association feedback signal is received from the vehicle-mounted associated device, connect to the associated device corresponding to the first received association feedback signal.

[0096] In practical applications, vehicle-mounted projection equipment, as an independent device, can not only be used for in-vehicle projection and connection with vehicle-mounted related devices, but also meet the needs of external projection or home projection and connect with other mobile related devices. For example, it can be used for outdoor projection during outdoor travel and can be linked with mobile related devices.

[0097] In this embodiment, when no association feedback signal is received from the in-vehicle association device, the projection device is used in an external environment and connects to the association device corresponding to the first received association feedback signal. The closer the distance, the faster the reception speed. Connecting to the association device corresponding to the first received association feedback signal improves the control efficiency of the association device over the projection device.

[0098] In the association schemes described in the foregoing embodiments, the association feedback signal includes device information, which can improve association efficiency. In some embodiments, the association feedback signal does not include specific device information, but only includes an identification identifier, in order to improve device information security.

[0099] In one possible implementation, following the broadcast association signal, the following is also included:

[0100] Upon receiving one or more associated feedback signals, connect to the corresponding temporary device based on the first associated feedback signal received;

[0101] Send a device information request command to the temporary device.

[0102] The associated feedback signals do not include device information to enhance device security and prevent unauthorized or malicious acquisition of device information. When multiple associated feedback signals are received, temporary association connections are established according to the order in which they are received to verify the device information of the corresponding device and determine whether it is an in-vehicle device. During the process of requesting device information, the in-vehicle projection device can transmit device information using encrypted transmission to improve information security.

[0103] In this embodiment, after establishing a temporary connection with the associated device, the vehicle-mounted projection device requests device information based on the device information request command, so as to determine whether the temporary device has relevant control permissions based on the device information, and to facilitate the identification and response to the control commands sent by the subsequent device information.

[0104] In one possible implementation, when the vehicle-mounted projection device determines that the temporary device is a vehicle-mounted device based on the device information fed back by the temporary device, the vehicle-mounted projection device enters the vehicle-mounted mode.

[0105] In one possible implementation, after sending the device information request instruction to the temporary device, the process further includes:

[0106] If no reply is received, enter home mode; or, if the temporary device is a non-vehicle-connected device, connect to the non-vehicle-connected device and enter home mode, using the temporary device as a remote control.

[0107] In practice, if the device corresponding to the associated feedback signal does not have control authority over the in-vehicle projector, it will not reply with device information. In this case, the in-vehicle projector directly enters home mode, and the user controls it using physical buttons or a remote control. For example, a Bluetooth headset with simple functionality, in a pending connection state, will send an associated feedback signal when it receives an associated signal broadcast by the associated module. When the Bluetooth headset is connected to the in-vehicle projector as a temporary device and receives a device information request command, it will not reply with relevant device information; the in-vehicle projector will then directly enter home mode.

[0108] When the associated device is a non-vehicle device but has control permissions for the vehicle-mounted projection device, the associated device requests and responds with device information based on the device information request, establishes a connection with the vehicle-mounted projection device, and realizes control of the vehicle-mounted projection device when the vehicle-mounted projection device enters home mode.

[0109] In this embodiment, when no association feedback signal is received from the vehicle-mounted associated device, a non-vehicle-mounted device is used as the wireless remote control for the projection device to improve the control efficiency of the projection device.

[0110] In one specific embodiment, the projection device and the non-vehicle-mounted associated device are connected based on the StarFlash communication protocol. Based on the technical characteristics of low latency, high reliability and high information security, it can improve the security of information transmission and the control stability and control efficiency of the non-vehicle-mounted associated device over the projection device.

[0111] Figure 2 This is a flowchart illustrating the implementation of a control method for an in-vehicle projection device according to another embodiment of this application, as shown below. Figure 2 As shown, the method includes the following steps:

[0112] After the vehicle-mounted projection device is powered on, it activates the Bluetooth / Wi-Fi module, which then broadcasts a connection signal to identify the associated device.

[0113] When no associated device is connected, the optical engine of the projection device does not start and remains in standby mode; after connecting to a device, it determines whether it is a vehicle-mounted device.

[0114] When the associated device is a non-vehicle device, the projector enters home mode; when the associated device is a vehicle device, the projector enters vehicle mode. In home mode, the connected mobile terminal acts as a wireless remote control for the projector.

[0115] In vehicle mode, if the start button is triggered, the vehicle status information is obtained to determine whether the driving conditions are met. If the driving conditions are met, the projection is prohibited from starting, and a prompt message is sent to the vehicle's infotainment system. Otherwise, the projection is started, and the linkage device is activated to link with the projection equipment.

[0116] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0117] The following are device embodiments of this application. For details not described in detail, please refer to the corresponding method embodiments described above.

[0118] Figure 4 This is a schematic diagram of the structure of the control device for an in-vehicle projection device provided in one embodiment of this application, as shown below. Figure 4 As shown, for ease of explanation, only the parts related to the embodiments of this application are shown, such as... Figure 4 As shown, the device includes:

[0119] The acquisition module 301 is used to acquire vehicle status information when the start button is triggered;

[0120] The control module 302 is used to prevent the projection from starting when the vehicle status meets the driving conditions; otherwise, the projection is started.

[0121] The sending module 303 is used to send a prompt message to the vehicle system when projection is prohibited.

[0122] In one possible implementation, driving conditions include: vehicle speed greater than zero, or vehicle speed zero and the vehicle being in reverse, drive, sport, or neutral gear.

[0123] In one possible implementation, the sending module 303 is further configured to send a linkage signal to the linkage device after the projection is started; wherein the linkage device includes one or more of the following: seat, interior lights, interior fragrance device, sunshade, window, car audio system and interior air conditioning.

[0124] In one possible implementation, the transmitting module 303 includes one or more of a Bluetooth module, a WiFi module, and a wireless short-range communication module.

[0125] In one possible implementation, the control module 302 is also used to confirm the application mode of the vehicle projection device before acquiring vehicle status information.

[0126] When the application mode is in vehicle mode, perform the operation of obtaining vehicle status information.

[0127] In one possible implementation, it also includes: an association module that is activated upon power-on and broadcasts an association signal;

[0128] Upon receiving a correlation feedback signal from an in-vehicle associated device, it connects to the in-vehicle associated device and enters in-vehicle mode; the associated module is a Bluetooth / Wi-Fi module, a Bluetooth module, or a Wi-Fi module.

[0129] In one possible implementation, the association module is further configured to parse the association feedback signals to determine the device information corresponding to the association feedback signals when one or more association feedback signals are received.

[0130] In one possible implementation, the association module is also used to connect to the association device corresponding to the first received association feedback signal when no association feedback signal is received from the vehicle association device.

[0131] In one possible implementation, the association module is also used to connect to the corresponding temporary device based on the first received association feedback signal when one or more association feedback signals are received.

[0132] Send a device information request command to the temporary device.

[0133] In one possible implementation, the association module is also used to connect to the non-vehicle association device and enter home mode when no reply information is received or the temporary device is a non-vehicle association device, using the temporary device as a remote control.

[0134] In this embodiment, by connecting the in-vehicle projection device to the vehicle, it can actively acquire vehicle status information and determine whether the safe start conditions are met when the start button is triggered, based on the vehicle status information. When the vehicle is in motion, a prompt message is sent to the vehicle's infotainment system to promptly remind the driver that the in-vehicle projection device has been accidentally activated. When the vehicle is not in motion, the projection is activated to meet the playback needs of the in-vehicle projection device without affecting driving safety.

[0135] Figure 4 This is a schematic diagram of the structure of a vehicle-mounted projection device provided in one embodiment of this application. For example... Figure 4 As shown, the vehicle-mounted projection device 4 of this embodiment includes: a processor 40, a memory 41, and a computer program 42 stored in the memory 41 and executable on the processor 40. When the processor 40 executes the computer program 42, it implements the steps in the control method embodiments of the various vehicle-mounted projection devices described above, for example... Figure 1 Steps S101 to S102 are shown. Alternatively, when the processor 40 executes the computer program 42, it implements the functions of each module / unit in the above-described device embodiments, for example... Figure 3 The functions of modules 301 to 303 are shown.

[0136] For example, the computer program 42 can be divided into one or more modules / units, which are stored in the memory 41 and executed by the processor 40 to complete this application. The one or more modules / units can be a series of computer program instruction segments capable of performing a specific function, which describe the execution process of the computer program 42 in the vehicle-mounted projection device 4. For example, the computer program 42 can be divided into... Figure 3 Modules 301 to 303 are shown.

[0137] The vehicle-mounted projection device 4 can be a computing device such as a desktop computer, laptop, handheld computer, or cloud server. The vehicle-mounted projection device 4 may include, but is not limited to, a processor 40 and a memory 41. Those skilled in the art will understand that... Figure 4This is merely an example of the vehicle-mounted projection device 4 and does not constitute a limitation on the vehicle-mounted projection device 4. It may include more or fewer components than shown, or combine certain components, or different components. For example, the vehicle-mounted projection device may also include input / output devices, network access devices, buses, etc.

[0138] The processor 40 may be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0139] The memory 41 can be an internal storage unit of the vehicle-mounted projection device 4, such as a hard drive or memory of the vehicle-mounted projection device 4. The memory 41 can also be an external storage device of the vehicle-mounted projection device 4, such as a plug-in hard drive, Smart Media Card (SMC), Secure Digital (SD) card, or Flash Card equipped on the vehicle-mounted projection device 4. Furthermore, the memory 41 can include both internal and external storage units of the vehicle-mounted projection device 4. The memory 41 is used to store the computer program and other programs and data required by the vehicle-mounted projection device. The memory 41 can also be used to temporarily store data that has been output or will be output.

[0140] This application also provides a vehicle that includes the vehicle-mounted projection device provided in the above embodiments.

[0141] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0142] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0143] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed in this application can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0144] In the embodiments provided in this application, it should be understood that the disclosed device / vehicle projection equipment and method can be implemented in other ways. For example, the device / vehicle projection equipment embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling or direct coupling or communication connection may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0145] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0146] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0147] If the integrated module / unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the above-described embodiments can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the control method embodiments for each of the above-described vehicle-mounted projection devices. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc.

[0148] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A control method for a vehicle-mounted projection device, characterized in that, include: When the start button is triggered, obtain vehicle status information; When the vehicle meets the driving conditions, the projection should be disabled and a prompt message should be sent to the vehicle's infotainment system. Otherwise, start the projection; among them, the vehicle projection device is a separate device used to meet the needs of in-vehicle projection, out-of-vehicle projection, or home projection. Before obtaining the vehicle status information, the following is also included: Confirm the application mode of the vehicle projection device; when the vehicle projection device is used for in-vehicle projection, the corresponding mode is vehicle mode; when used for out-of-vehicle projection or home projection, the corresponding mode is home mode. When the application mode is vehicle mode, the operation of obtaining vehicle status information is performed; wherein, the vehicle status meeting the driving conditions indicates that the driver is driving and the vehicle is in a road driving state. Before the start button is triggered, the following is also included: Upon power-on startup, the associated module is activated, and the associated module is controlled to broadcast associated signals; Upon receiving one or more associated feedback signals, connect to the corresponding temporary device based on the first associated feedback signal received; Send a device information request instruction to the temporary device; If no reply is received, enter home mode; or, if the temporary device is a non-vehicle-connected device, connect to the non-vehicle-connected device and enter home mode, using the temporary device as a remote control; if the temporary device is a vehicle-connected device, upon receiving a connection feedback signal sent by the vehicle-connected device, connect to the vehicle-connected device and enter vehicle mode; wherein, the connection module is a Bluetooth / Wi-Fi module, a Bluetooth module, or a Wi-Fi module.

2. The control method according to claim 1, characterized in that, The driving conditions include: the vehicle speed is greater than zero, or the vehicle speed is zero and the vehicle is in reverse, forward, sport, or neutral gear.

3. The control method according to claim 1, characterized in that, Following the initiation of projection, the following is also included: The linkage signal is sent to the linkage device via short-range wireless communication; wherein the linkage device includes one or more of the following: seat, interior lights, interior fragrance device, sunshade, window, car audio system and interior air conditioning.

4. The control method according to claim 1, characterized in that, Following the broadcast-related signal, the following is also included: Upon receiving one or more associated feedback signals, the associated feedback signals are parsed to determine the device information corresponding to the associated feedback signals.

5. A vehicle-mounted projection device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the control method as described in any one of claims 1 to 4 above.

6. A vehicle, characterized in that, Includes the vehicle-mounted projection device as described in claim 5.

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