Vehicle-mounted audio and video control system

Abstract

The invention discloses a vehicle-mounted audio and video control system, which mainly comprises a vehicle-mounted remote controller, a vehicle-mounted entertainment display system, projection equipment and a projection control module, the control mode of the vehicle-mounted audio and video control system comprises the steps that the vehicle-mounted entertainment display system obtains a projection starting instruction directly sent by a user or sent by a vehicle-mounted remote controller; after receiving the projection starting instruction, the projection control module triggers the projection equipment to start and project audio and video data into or out of the vehicle; and the projection control module triggers the projection equipment to be turned off based on a projection turn-off instruction sent by the user or automatically triggers the projection equipment to be turned off. According to the invention, the use of the vehicle-mounted multimedia equipment is simpler, more convenient, safer and more intelligent, so that the use experience of a user on a vehicle can be greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile cockpits, and in particular to a vehicle-mounted audio and video control system. Background Art

[0002] In-car audio and video entertainment functions are currently standard in car cabins. However, the current in-car audio and video entertainment systems involving projection devices still have a lot of room for improvement in terms of the hardware architecture, communication interaction, and projection control measures of the projection audio and video system. Summary of the invention

[0003] In view of the above, the present invention aims to provide a vehicle-mounted audio and video control system to solve the aforementioned technical problems.

[0004] The technical solution adopted by the present invention is as follows:

[0005] The present invention provides a vehicle-mounted audio and video control system, comprising:

[0006] An on-board remote controller for transmitting audio and video data and / or transmitting projection instructions;

[0007] The in-vehicle entertainment display system is used to receive projection instructions and transmit them to the projection control module, and / or transmit audio and video data to the projection device, and drive the speaker system in the car or drive the audio outside the car;

[0008] A projection device for performing projection inside or outside the vehicle;

[0009] A projection control module, used for receiving a projection instruction and controlling the projection device according to the projection instruction;

[0010] The control method of the control system includes:

[0011] The in-vehicle entertainment display system obtains a projection start instruction directly issued by the user or via an in-vehicle remote controller;

[0012] After receiving the projection start command, the projection control module triggers the projection device to start and project the audio and video data into or outside the vehicle;

[0013] The projection control module triggers the projection device to shut down based on a projection shut down instruction issued by the user, or automatically triggers the projection device to shut down.

[0014] In at least one possible implementation, the in-vehicle entertainment display system obtains the projection start instruction specifically including: the in-vehicle entertainment display system receives the projection start instruction directly sent by the user's mobile terminal, a physical button on the switch control panel, a voice signal, or a virtual button of the in-vehicle entertainment display system.

[0015] In at least one possible implementation, the in-vehicle entertainment display system obtaining the projection start instruction further includes:

[0016] The in-vehicle entertainment display system receives the first scheduled projection start time set by the user's mobile terminal through the cloud server and the in-vehicle remote controller, and sends the first scheduled projection start time to the projection control module for timing the start of the projection device; or

[0017] The in-vehicle entertainment display system receives the projection location set by the user's mobile terminal through the cloud server and the in-vehicle remote controller; and the cloud server feeds back a recommended projection time period based on the projection location and the path planning result; the user's mobile terminal sets a second scheduled projection start time within the projection time period; the in-vehicle entertainment display system receives the second scheduled projection start time through the cloud server and the in-vehicle remote controller, and the projection control module starts the projection device at a fixed point and at a fixed time based on the projection location and the second scheduled projection start time.

[0018] In at least one possible implementation, the in-car projection method includes: the projection control module adjusts the angle of the projection device and projects the image data onto the car glass, while the in-car entertainment display system drives the speaker system to output audio.

[0019] In at least one possible implementation, the vehicle exterior projection method includes:

[0020] The projection control module adjusts the angle of the projection device and projects the image data onto a projection carrier placed outside the car in advance. At the same time, the in-car entertainment display system drives the audio output of the speakers placed outside the car.

[0021] In at least one possible implementation, during the process of projection outside the vehicle, the projection control module senses the weather changes outside the vehicle through a rain sensor, and when a certain weather condition is detected, the projection control module actively turns off the projection device and operates it to a preset initial position inside the vehicle.

[0022] Compared with the prior art, the main design concept of the present invention is that it includes: a vehicle-mounted remote controller for transmitting audio and video data and / or transmitting projection instructions; a vehicle-mounted entertainment display system for receiving projection instructions and transmitting them to a projection control module, and / or transmitting audio and video data to a projection device, and driving a speaker system in the vehicle or driving an audio system outside the vehicle; a projection device for performing projection inside or outside the vehicle; a projection control module for receiving projection instructions and controlling the projection device according to the projection instructions; the control method of the control system includes: the vehicle-mounted entertainment display system obtains a projection start instruction directly issued by the user or issued via the vehicle-mounted remote controller; the projection control module triggers the projection device to start and project the audio and video data inside or outside the vehicle after receiving the projection start instruction; the projection control module triggers the projection device to shut down based on a projection shutdown instruction issued by the user, or automatically triggers the projection device to shut down. The present invention makes the use of vehicle-mounted multimedia devices more convenient, safe, and intelligent, thereby greatly improving the user's experience of using the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described below with reference to the accompanying drawings, in which:

[0024] Figure 1 A schematic diagram of a vehicle-mounted audio and video control system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0026] The present invention proposes an embodiment of a vehicle-mounted audio and video control system. Specifically, Figure 1 As shown, the vehicle-mounted audio and video control system may specifically include:

[0027] On-board remote controller (such as remote on-board terminal T-BOX), used to transmit audio and video data and / or transmit projection instructions;

[0028] The in-vehicle entertainment display system (which may be an in-vehicle multimedia system HMI connected to a sound pickup device MIC) is used to receive projection instructions and transmit them to the projection control module, and / or transmit audio and video data to the projection device and control the vehicle speaker system or interact with other audio and other audio devices configured outside the vehicle via Bluetooth;

[0029] The projection device is used to perform projection inside or outside the vehicle; in some embodiments, the projection device can be composed of components such as a projector, a camera, a rotating motor, a flip motor, a rotating axis, and a flip axis.

[0030] Sensing equipment, used to detect the internal or external environment of the vehicle and send the sensing information to the projection control module; it may include the camera, sunlight sensor, rain sensor, etc. shown in the figure;

[0031] The projection control module (PCM) is used to receive projection instructions and sensor information, and control the projection device according to the projection instructions and sensor information, specifically, through a projection rotation motor, a projection flip motor, etc.

[0032] The aforementioned in-vehicle entertainment display system can interact with the user's mobile terminal through communication methods such as wifi / Bluetooth; the in-vehicle remote controller can interact with the entertainment resource provider or the cloud server of the Internet of Vehicles platform through communication methods such as 4G / 5G; and in some preferred embodiments, the cloud server can also interact with the user's mobile terminal through communication methods such as 4G / 5G.

[0033] In addition, in some other embodiments, a switch control panel is also configured in the vehicle, and the aforementioned in-vehicle entertainment display system is electrically connected to the switch control panel to enable manual control.

[0034] In combination with the above control system embodiment, specific projection signal transmission and control methods are provided here for implementation reference.

[0035] First of all, it can be explained that, based on the above system architecture, there are different ways to implement the command of the user to project the input signal.

[0036] For example, when the user is in the car, the user's mobile terminal (mobile phone) connects to the HMI through WIFI / USB cable / Bluetooth (Bluetooth communication can also be used when the user is not in the car but is near the car, that is, within the Bluetooth range), and the mobile phone and HMI are interconnected in combination with the preset application. After that, the "Start in-car projection" button in the mobile phone APP can be clicked, and the HMI sends the projection command to the PCM through the CAN network; or, by pressing the "Start in-car projection" button on the switch control panel, the switch signal is sent to the HMI through the hard line / LIN line, and the HMI sends the projection command to the PCM through the CAN network; voice control can also be performed through the MIC, for example, the HMI receives the "Start in-car projection" voice signal and sends the projection command to the PCM through the CAN line; of course, the preset "Start in-car projection" virtual button in the HMI can also be touched, and the HMI sends the projection command to the PCM through the CAN line.

[0037] For example, when the user is at a certain distance outside the vehicle (outside the Bluetooth communication range), the mobile phone can connect to the cloud server through the 4G / 5G network, and the cloud server can connect to the vehicle T-BOX through the 4G / 5G network to achieve long-distance signal interaction between the user and the vehicle. After that, the "Schedule In-Car Projection" button in the mobile phone APP can be used to set the scheduled time for projection. The signal is sent to the T-BOX through the cloud server, and the T-BOX sends the projection command to the HMI and PCM respectively through the vehicle CAN network; in this scenario, if the vehicle has an automatic driving function, the user can set the projection location in accordance with the aforementioned method of setting the reservation time (that is, the projection is allowed after the vehicle drives to a certain location). When the vehicle receives the projection command through the cloud, it can feedback the user through the cloud server in combination with the path planning result, and recommend the projection time period (that is, give the time prediction result based on the road driving conditions). Then the user confirms the suggestion of the time period and enters the specific projection reservation time in the above manner. In this way, after the vehicle automatically drives to the aforementioned location, the location and vehicle status are fed back to the user terminal, and the projection reservation time is sent to the HMI and PCM synchronously.

[0038] Continuing from the above, when the PCM receives the projection instruction and starts to perform the projection, it can be implemented in the following control mode:

[0039] (1) In-car projection. PCM transmits information to the projection device through CAN / LIN / Ethernet to trigger its start. The projection device receives the image data transmitted by HMI through the LVDS line and outputs the projection content to the car glass (such as the rear windshield). At the same time, HMI drives the speaker system to output the corresponding audio. If side window (door glass) projection is required, the PCM drives the rotary stepper motor to execute the preset rotation angle so that the image data is projected onto the side window of the vehicle. Of course, it is understandable that a glass film of special material can be pre-installed on the side window glass to achieve the effect that people inside or outside the car can watch. In addition, during the projection process, the user's mobile terminal APP, HMI virtual buttons, microphone, physical buttons and other control methods can also be used to issue projection instructions in real time, such as rotating the projector angle, controlling the projection screen size, and projection display clarity. More preferably, during the projection process, the ambient light can be detected by sensing devices such as sunlight sensors, so that the brightness of the projected image can be adaptively adjusted.

[0040] (2) Projection outside the vehicle. The PCM first starts the flip stepper motor of the projection device to flip the projector. After the angle is preset to a predetermined position, the PCM triggers the projection device to start. The projection device receives the image data transmitted by the HMI through the LVDS line and outputs the projection content to the projection screen or projection wall placed outside the vehicle in advance. At the same time, the HMI drives the audio placed outside the vehicle to output the corresponding audio through the Bluetooth signal. The control and display brightness adjustment methods during the projection process can be referred to above and will not be repeated here.

[0041] Finally, it can be added that the control method for turning off the projection can be through but not limited to pressing the corresponding "turn off projection" control such as mobile phone APP, HMI virtual button, microphone, physical button, etc., and the vehicle CAN network will send this shutdown signal to HMI and PCM respectively. On the one hand, HMI stops the transmission of image data, and on the other hand, PCM transmits the shutdown signal to the projection device. When the projection device specifically executes the shutdown process, the projector can be turned off first, and the current position of the rotating motor or the flip motor can be synchronously detected. If it is not in the initial position in the car, the corresponding motor is started to restore the posture of the projector to the initial position.

[0042] It can also be added here that, with respect to the embodiment mentioned above in which projection is performed outside the vehicle, a rain sensor can also be used to detect weather changes. If rain or other similar weather is detected outside the vehicle, the PCM will actively shut down the projection device and move it to its initial position inside the vehicle to prevent damage or malfunction of the projection device due to water ingress.

[0043] Of course, for a better embodiment, after the projection device is turned off, the camera on the projector can be temporarily activated to implement a monitoring function similar to the sentinel mode, which is not limited by the present invention.

[0044] In summary, the main design concept of the present invention is that it includes: a vehicle-mounted remote controller for transmitting audio and video data and / or transmitting projection instructions; a vehicle-mounted entertainment display system for receiving projection instructions and transmitting them to a projection control module, and / or transmitting audio and video data to a projection device, and driving a speaker system in the vehicle or driving an audio system outside the vehicle; a projection device for performing projection inside or outside the vehicle; a projection control module for receiving projection instructions and controlling the projection device according to the projection instructions; the control method of the control system includes: the vehicle-mounted entertainment display system obtains a projection start instruction directly issued by the user or issued via the vehicle-mounted remote controller; after receiving the projection start instruction, the projection control module triggers the projection device to start and projects the audio and video data inside or outside the vehicle; the projection control module triggers the projection device to shut down based on a projection shutdown instruction issued by the user, or automatically triggers the projection device to shut down. The present invention makes the use of vehicle-mounted multimedia devices more convenient, safe, and intelligent, thereby greatly improving the user's experience of using the vehicle.

[0045] If the expressions expressing orientation are mentioned in the embodiments of the present invention, they are relative concepts based on the embodiments. In addition, "at least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. Among them, A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can be represented by: a, b, c, a and b, a and c, b and c, or a and b and c, wherein a, b, c can be single or multiple.

[0046] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings, but the above is only a preferred embodiment of the present invention. It should be noted that the technical features involved in the above embodiments and their preferred methods can be reasonably combined and matched into a variety of equivalent schemes by those skilled in the art without departing from or changing the design ideas and technical effects of the present invention; therefore, the present invention is not limited to the scope of implementation shown in the drawings, and all changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the specification and drawings, should be within the protection scope of the present invention.

Claims

1. A vehicle-mounted audio and video control system, characterized in that: include: An on-board remote controller for transmitting audio and video data and / or transmitting projection instructions; The in-vehicle entertainment display system is used to receive projection instructions and transmit them to the projection control module, and / or transmit audio and video data to the projection device, and drive the speaker system in the car or drive the audio outside the car; A projection device for performing projection inside or outside the vehicle; A projection control module, used for receiving a projection instruction and controlling the projection device according to the projection instruction; The control method of the control system includes: The in-vehicle entertainment display system obtains a projection start instruction directly issued by the user or via an in-vehicle remote controller; After receiving the projection start command, the projection control module triggers the projection device to start and project the audio and video data into or outside the vehicle; The projection control module triggers the projection device to shut down based on a projection shut down instruction issued by the user, or automatically triggers the projection device to shut down.

2. The vehicle-mounted audio and video control system according to claim 1, characterized in that: The in-vehicle entertainment display system obtains the projection start instruction specifically including: the in-vehicle entertainment display system receives the projection start instruction directly sent by the user's mobile terminal, a physical button of a switch control panel, a voice signal, or a virtual button of the in-vehicle entertainment display system.

3. The vehicle-mounted audio and video control system according to claim 1, characterized in that: The in-vehicle entertainment display system also obtains the projection start instruction: The in-vehicle entertainment display system receives the first scheduled projection start time set by the user's mobile terminal through the cloud server and the in-vehicle remote controller, and sends the first scheduled projection start time to the projection control module for timing the start of the projection device; or The in-vehicle entertainment display system receives the projection location set by the user's mobile terminal through the cloud server and the in-vehicle remote controller; and the cloud server feeds back a recommended projection time period based on the projection location and the path planning result; the user's mobile terminal sets a second scheduled projection start time within the projection time period; the in-vehicle entertainment display system receives the second scheduled projection start time through the cloud server and the in-vehicle remote controller, and the projection control module starts the projection device at a fixed point and at a fixed time based on the projection location and the second scheduled projection start time.

4. The vehicle-mounted audio and video control system according to claim 1, characterized in that: The in-car projection method includes: the projection control module adjusts the angle of the projection device and projects the image data onto the car glass, while the in-car entertainment display system drives the speaker system to output audio.

5. The vehicle-mounted audio and video control system according to claim 1, characterized in that: The external projection modes include: The projection control module adjusts the angle of the projection device and projects the image data onto a projection carrier placed outside the car in advance. At the same time, the in-car entertainment display system drives the audio output of the speakers placed outside the car.

6. The vehicle-mounted audio and video control system according to claim 5, characterized in that: During the projection outside the vehicle, the projection control module senses the weather changes outside the vehicle through the rain sensor, and when a certain weather condition is detected, the projection control module actively turns off the projection device and moves it to a preset initial position inside the vehicle.

Images