CN210536833U - Screen projection interactive system of intelligent terminal and vehicle-mounted entertainment equipment - Google Patents
Screen projection interactive system of intelligent terminal and vehicle-mounted entertainment equipment Download PDFInfo
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Abstract
The utility model provides a screen projection interaction system applied to an intelligent terminal of an automobile and vehicle-mounted entertainment equipment, which comprises an instrument host, a central control host and an intelligent terminal, wherein the intelligent terminal is connected with the central control host which is connected with the instrument host; the intelligent terminal can send the acquired media content to the central control host; the central control host comprises a central control display screen, the instrument host comprises an instrument display screen, and the central control host sends content needing screen projection display to the instrument host for screen projection display according to the requirements of users. The utility model provides a throw screen interactive system can send well accuse host computer through the media content that intelligent terminal acquireed, on the one hand, richly throw screen content, solve the cycle of the car factory renewal amusement content slow, problem with high costs. Meanwhile, an access point of multimedia content is provided for the automobile without the intelligent antenna, and good riding experience is brought to drivers and passengers.
Description
Technical Field
The utility model relates to a screen interactive field is thrown with the car to intelligent terminal, especially relates to a screen interactive system is thrown with on-vehicle amusement equipment to intelligent terminal.
Background
With the popularity of automobiles, more and more automobiles enter thousands of households, but safety issues regarding automobiles are brought about as a result. In recent years, many automobile manufacturers and research institutions are popularizing intelligent automobiles, so that the automobiles tend to be intelligent and humanized. In the automobile industry, the development of unmanned automobiles, Advanced Driver Assistance Systems (ADAS), Antilock Braking Systems (ABS), and the like has become the development direction of future technologies. The rise of these safety assistance systems necessarily brings a good experience to the driver and passengers. However, the driving process is relatively boring, fatigue is easy to occur during long-time driving, drivers like to listen to music during the driving process, and at the present stage, automobiles are all provided with an In-Vehicle entertainment system (IVI), which is a Vehicle-mounted comprehensive information processing system formed by adopting a Vehicle-mounted special central processing unit and based on a Vehicle body bus system and internet service. The IVI can realize a series of applications including three-dimensional navigation, real-time road conditions, IPTV, auxiliary driving, fault detection, vehicle information, vehicle body control, mobile office, wireless communication, online-based entertainment functions, TSP (short message service) service and the like, and improves the electronization, networking and intelligentization levels of vehicles. According to the difference of functional forms of products, the vehicle-mounted entertainment system can be divided into an entertainment system and an information system. The entertainment system mainly comprises audio and video equipment such as CD, VCD, radio, multimedia and the like, which are used for providing entertainment services for drivers and passengers in the vehicle; the information system mainly comprises a navigation engine, software, an electronic map, wireless broadcast information, remote communication equipment and the like, and provides information service for drivers and passengers.
At present, however, the functions of the vehicle-mounted host for entertainment are only a small part, most of the application programs stored in the vehicle-mounted host are related to vehicle body control, such as air conditioner switches, door and window switches, seat adjustment and the like, and the stored media content is very little, because when a new vehicle leaves a factory, if the factory needs to put in the content such as movies or music and the like, the factory needs to obtain the license of the copyright owners such as movies and music and the like, the cost of the factory is many times higher than that of the individual, so that many factories are not willing to spend money for purchasing, and the content of the vehicle-mounted entertainment is less. In addition, many vehicles do not have smart antennas and cannot connect to the internet to access media content, which often results in many vehicle controls becoming furnishings that no longer enable viewing movies or listening to music on the vehicle.
On the other hand, in the current automobile intelligent cabin design, an instrument display is arranged right in front of a driver's seat and used for displaying automobile speed, oil quantity, oil temperature and automobile body state, a screen is arranged on the right side of the driver for displaying, and the driver watches navigation and movies in the vehicle-mounted host, or makes a call, receives a radio or switches on and off an air conditioner by using a touch screen, so that the operation is very inconvenient because the position of the screen is far away from the driver. If a driver turns on the navigation system through the vehicle-mounted host, the driver needs to continuously watch the navigation map, and the driver needs to look at the screen obliquely every time, if an emergency is met, a traffic accident is easily caused, and the vehicle is damaged and the death is caused in serious cases. In order to solve the problem that a driver is inconvenient to operate, the central control display screen is projected to the instrument end to display in the prior art. However, the screen projection method in the prior art is complex, which easily causes misoperation of a user, the content of the screen projection is not the content desired by the user, and the user needs to reselect. In addition, the screen projection content is complete screen projection, so that the contents of the vehicle speed, the vehicle body state, the engine speed and the like displayed by important instruments are covered, and safety accidents are easily caused.
SUMMERY OF THE UTILITY MODEL
Based on the defect that exists among the prior art, the to-be-solved technical problem of the utility model lies in providing can the accuracy throw the screen and be applied to throwing of intelligent terminal and the on-vehicle amusement equipment of car screen interactive system.
In order to achieve the purpose, the utility model provides a screen projection interaction system applied to an intelligent terminal of an automobile and vehicle-mounted entertainment equipment, which comprises an instrument host, a central control host and an intelligent terminal, wherein the intelligent terminal is connected with the central control host which is connected with the instrument host;
the intelligent terminal can send the acquired media content to the central control host;
the central control host comprises a central control display screen, the instrument host comprises an instrument display screen, and the central control host sends content needing screen projection display to the instrument host for screen projection display according to the requirements of users;
the user's requirements include operating the application icon on the central control display screen according to the user's request or operating the application icon through voice by the user.
A screen projection interaction system applied to an intelligent terminal and vehicle-mounted entertainment equipment of an automobile is further provided, wherein the intelligent terminal comprises a media content acquisition module, a media content database, a coding module and a control interaction module, the coding module is respectively connected with the media content acquisition module and the control interaction module, and the media content acquisition module is also connected with the media content database;
the media content acquisition module is configured to be used for storing, downloading or generating media content, and the media content comprises video, audio, pictures and texts;
a media content database configured for storing the acquired media content;
the encoding module is configured to encode and transmit the media content to be transmitted;
and the control interaction module is configured for interacting with the central control host, and the interaction at least comprises establishing communication connection and receiving or sending a control instruction.
The screen projection interactive system applied to the intelligent terminal and the vehicle-mounted entertainment equipment of the automobile further comprises a decoding module, a control interactive module and a cache database,
a decoding module configured to decode the received media content;
the control interaction module is configured to interact with the intelligent terminal, and the interaction at least comprises establishing communication connection and receiving or sending a control instruction;
a cache database configured for temporarily storing the decoded media content.
A screen projection interaction system applied to an intelligent terminal and vehicle-mounted entertainment equipment of an automobile further comprises a CPU, a display control module, a monitoring module and a communication module, wherein the display control module, the monitoring module and the communication module are respectively and electrically connected with the CPU;
the CPU is at least configured to be responsible for calling, logic operation and resource allocation among the module processes of the system;
a meter display screen configured to display contents of the input and output;
the monitoring module is configured to monitor the signal transmitted from the central control host and judge whether the signal is a projection signal;
a display control module configured to control display content in the meter display screen.
A screen projection interaction system applied to an intelligent terminal of an automobile and vehicle-mounted entertainment equipment is further characterized in that a central control host further comprises a CPU, a communication module and a projection module, wherein the communication module and the projection module are respectively and electrically connected with the CPU;
the CPU is at least configured to be responsible for calling, logic operation and resource allocation among the module processes of the system;
a communication module configured for communicating with a meter host;
and the projection module is configured to monitor the operation track of the user and judge whether the operation track is a screen projection operation.
The display control module is used for dividing the instrument display screen into two parts when the display control module is used for controlling the projection display of the content displayed by the instrument display screen, reducing the originally displayed content to be displayed in a first area and displaying the reduced content in a second area, and displaying the projected content from a central control host.
The screen projection interaction system applied to the intelligent terminal and the vehicle-mounted entertainment equipment of the automobile further comprises an application setting module, wherein the application setting module is configured to be used for controlling contents to be displayed in a display screen controlled by the central control host;
well accuse host computer and instrument host computer's connected mode includes wired connection and wireless connection, among the wired connection, includes at least one among on-vehicle ethernet bus, LVDS bus, CAN bus, HDMI, SPI, I2C, DVI, the VGA, includes in the wireless connection mode: WIFI, Bluetooth, 4G and 5G.
The utility model provides a screen interactive system that throws that is applied to intelligent terminal and on-vehicle amusement equipment of car, its further, well accuse host computer still includes voice module, voice module includes:
the voice recognition module is configured to recognize according to the received voice of the user and convert the voice into characters to extract keywords from the characters;
an instruction database configured to store critical instructions;
the search module is configured to search in an instruction database according to the keyword recognized by the voice recognition module to inquire whether the instruction exists;
the confirmation module is configured to send whether screen projection operation is performed or not to a user for confirmation according to the instruction found by the search module;
and the instruction function matching module is configured to match the corresponding application program according to the key instruction stored in the instruction database and send a signal corresponding to the application program needing screen projection to the projection module.
A screen projection interaction system applied to an intelligent terminal and vehicle-mounted entertainment equipment of an automobile is further characterized in that a central control host further comprises a rear-row display screen, the rear-row display screen is installed behind a front-row seat of the automobile and used for setting display contents according to user requirements, and the display contents are set through an application setting module;
a screen projection interaction system applied to an intelligent terminal and vehicle-mounted entertainment equipment of an automobile is further characterized in that when projection contents of a central control host computer are absent, an instrument display screen is used for displaying preset contents, and the preset contents comprise engine rotating speed, automobile tire pressure, automobile body state and automobile running speed; the automobile body state comprises an opening and closing state of an automobile door, an opening state of a hand brake, an opening and closing state of an automobile window, an opening and closing state of an automobile lamp, an opening and closing state of a windshield wiper, the amount of gasoline in an automobile oil tank and the temperature.
The utility model has the advantages that:
1. through the utility model provides a screen interactive system throws of intelligent terminal and on-vehicle amusement equipment can make the user pass through intelligent terminal, and the equipment like the cell-phone is with abundant multimedia content transmission to well accuse host computer, then well accuse host computer throws screen display with this content. On one hand, screen projection content is enriched, and the problems of slow cycle and high cost of updating entertainment content in a vehicle factory are solved. On the other hand, an access point of multimedia content is provided for some automobiles without the intelligent antenna, and good riding experience is brought to drivers and passengers.
2. The utility model provides a well accuse host computer can be with the content that needs show project and go on showing on the instrument display screen, makes things convenient for the operation of driver at the driving in-process, can promote the security of driving, avoids the driver to take place because of the safety accident that the front of the inattentive or inattentive car leads to.
3. The utility model discloses a be equipped with in well accuse host computer and use the setting module, can self-defined application that needs throw the screen through using the setting module, avoided throwing the screen with the application that need not throw the screen. In addition, can set up unsafe application and throw the screen for the back row user, make the passenger also can enjoy the good experience that installs amusement APP in the well accuse host computer and bring at the driving in-process. Without worrying about the application program that the passenger unconsciously operates to influence safe driving.
4. The utility model discloses an in throwing the screen display, through showing control module, when the screen is thrown to the well accuse host computer, the control instrument display screen carries out the split screen display and shows, and the content that the instrument display screen shows reduces when will not throwing the screen and shows and put into first region, throws the screen content and puts another part screen and show and put into the second region, ensures that the important content that the instrument end shows is not because of throwing the screen display and is covered.
5. The utility model discloses a throw the screen operation and compare in prior art, its easy operation can prevent the maloperation. Such as voice operation, double-click and slide operation, etc.
6. The utility model discloses a connect and adopt the connection based on-vehicle ethernet, can avoid traditional ethernet internet access to lead to the transmission delay, provide the good experience of user.
Drawings
The following drawings are only schematic illustrations and explanations of the present invention, and do not limit the scope of the present invention.
Fig. 1 is the utility model discloses an embodiment intelligent terminal, well accuse host computer and instrument host computer interconnect's schematic structure diagram.
Fig. 2 is a schematic view of an embodiment of the present invention, in which the instrument display screen normally displays predetermined content when there is no projection content of the central control host.
Fig. 3 is a schematic diagram of an embodiment of the present invention, which is used for displaying the preset content and the projection content from the central control host on the instrument display screen in a split-screen manner.
Fig. 4 is a schematic structural diagram of a voice module according to an embodiment of the present invention.
Fig. 5 is a schematic flow chart of the embodiment of the present invention, in which the central control host sends the content to be projected to the meter host for display.
Fig. 6 is a schematic view showing an operation track of the central control display screen according to an embodiment of the present invention.
Fig. 7 is a schematic diagram of an embodiment of the present invention in which application icons corresponding to APPs that need to be projected onto a screen are concentrated on a central control display screen.
Fig. 8 is a schematic flow chart of screen projection control performed by voice according to an embodiment of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings, in which like reference numerals refer to like parts in the drawings. For the sake of simplicity, the drawings schematically show the relevant parts of the present invention, and do not represent the actual structure of the product. In addition, for simplicity and clarity of understanding, only one of the components having the same structure or function is schematically illustrated or labeled in some of the drawings.
As for the control system, the functional module, application program (APP), is well known to those skilled in the art, and may take any suitable form, either hardware or software, and may be a plurality of functional modules arranged discretely, or a plurality of functional units integrated into one piece of hardware. In its simplest form, the control system may be a controller, such as a combinational logic controller, a micro-programmed controller, or the like, so long as the operations described herein are enabled. Of course, the control system may also be integrated as a different module into one physical device without departing from the basic principle and scope of the present invention.
The present invention relates to connections between various components, including direct connections, indirect connections, communicative connections, and electrical connections, as understood in particular in connection with the context.
Example 1:
the implementation provides a screen projection interactive system of an intelligent terminal and vehicle-mounted entertainment equipment, and specifically, referring to fig. 1, fig. 1 is a schematic structural diagram of interconnection of the intelligent terminal, a central control host and an instrument host in the embodiment, and specifically includes an instrument host 1, a central control host 2, an intelligent terminal 3 connected with the central control host 2, and the instrument host 1 connected with the central control host 2;
the intelligent terminal 3 can send the acquired media content to the central control host 2, for example, the intelligent terminal can access the internet to acquire the media content on the internet. The intelligent terminal 3 can establish communication connection with the central control host 2 in a wired and wireless mode, and then send the media content to the central control host 2.
When the intelligent terminal 3 and the central control host 2 are in wireless connection, the wireless connection can be established by wifi and Bluetooth, and then data is sent.
The meter host 1 comprises a CPU14, a meter display screen 11, a display control module 15, a monitoring module 12 and a communication module 13, wherein the meter display screen 11, the display control module 15, the monitoring module 12 and the communication module 13 are respectively and electrically connected with the CPU 14; the central control host 2 comprises a CPU25, a communication module 24, an application setting module 22, a projection module 23, a central control display screen 21, a decoding module 20, a cache database 29 and a control interaction module 28, wherein the communication module 24, the application setting module 22, the projection module 23, the central control display screen 21 and the decoding module 20 are respectively and electrically connected with a CPU25, and the decoding module 20 is respectively connected with the cache database 29 and the control interaction module 28; the intelligent terminal 3 comprises a media content obtaining module 33, a media content database 34, a coding module 31 and a control interaction module 32, wherein the coding module 31 is respectively connected with the media content obtaining module 33 and the control interaction module 32, and the media content obtaining module 33 is further connected with the media content database.
Specifically, the connection mode of the meter host 1 and the central control host 2 is that the communication module 13 in the meter host 1 and the communication module 24 in the central control host 2 are electrically connected, and the connection mode includes wired connection and wireless connection, in the wired connection, one of a vehicle-mounted ethernet bus, LVDS (low voltage differential signaling) bus, CAN bus, HDMI, SPI, I2C, DVI, and VGA is included, and the wireless connection mode includes: WIFI, Bluetooth, 4G and 5G.
Among them, the in-vehicle ethernet is an in-vehicle network technology for connecting an in-vehicle controller through an ethernet, unlike a domestic ethernet network using 4 pairs of Unshielded Twisted Pair (UTP) cables. The data transmission rate of the vehicle-mounted Ethernet using 2 pairs of unshielded twisted pair wires can reach 100Mbit/s, and the requirements of high reliability, low electromagnetic radiation, low power consumption, bandwidth allocation, low delay, synchronous real-time performance and the like of signal transmission, particularly video or audio signal transmission, of an automatic driving automobile adopting a level L2-L3 are met.
The physical layer of the vehicular Ethernet adopts the BroadR-Reach technology of the company Botong, and the physical layer (PHY) technology of the BroadR-Reach is standardized by the One-pair Ethernet Alliance (OPEN). The MAC layer of the vehicular Ethernet adopts the interface standard of IEEE 802.3, and supports a high-level network protocol (such as TCP/IP) similar to the traditional Ethernet.
The vehicle-mounted Ethernet follows a certain communication protocol and specification, and the vehicle-mounted Ethernet communication specification comprises the following aspects: a physical layer design specification; physical layer test specification; and diagnosing the communication protocol specification. In which video and audio transmission protocols are used
The AVB protocol suite is as follows.
(1) Precision Time Protocol (PTP) -ieee802.1as.
(2) Stream Reservation Protocol (SRP) — IEEE802.1Qat.
(3) Queue and Forwarding Protocol (Qav for short), ieee802.1 qav.
(4) An Audio/Video Bridging system (IEEE/Video Bridging Systems), IEEE802.1 BA, comprises ① IEEE 1722 + 2011, a second layer transmission protocol standard of time-sensitive application in a Bridging local area network ② IEEE 1733 + 2011, and a third layer transmission protocol standard of time-sensitive application in the Bridging local area network.
Due to the existence of the protocols, the time synchronization can be carried out on the transmission of the audio and the video in time, the delay of the picture is reduced, the user experience is improved, and the cost is low.
In the meter main unit 1, the functions of the respective modules are as follows:
a CPU14 configured at least to be responsible for calling, logic operation, and resource allocation among the system module processes;
a meter display screen 11 configured to display contents of input and output;
specifically, the instrument display screen 11 is used for displaying preset contents including an engine speed, a tire pressure of the automobile, a vehicle body state and an automobile running speed when the projected contents of the central control host are absent, wherein the vehicle body state includes an opening and closing state of a vehicle door, an opening state of a hand brake, an opening and closing state of a vehicle window, an opening and closing state of a vehicle lamp, an opening and closing state of a windshield wiper, an amount of gasoline in an automobile oil tank, a temperature and the like. When receiving the projection signal from the central control host, the projection signal can be displayed in a split screen mode, the state content of the original instrument display screen is reduced to be displayed in a first area of the instrument display screen, and the projection content from the central control host is displayed in a second area. Referring to fig. 2 and 3, fig. 2 is a schematic diagram illustrating that the instrument display screen normally displays preset content when the projected content of the central control host is absent in the embodiment. Such as: the engine speed, the automobile tire pressure, the automobile body state and the automobile running speed are shown in the figure 3, and the schematic diagram is that preset contents and projection contents from the central control host are displayed on the instrument display screen in a split screen mode. As can be seen from the figure, the left-hand display content of fig. 3 is a reduced display of the original content, and the right-hand display content is the projected in-vehicle navigation content from the central control host, as compared with fig. 2.
The monitoring module 12 is configured to monitor the signal transmitted from the central control host and determine whether the signal is a projection signal;
specifically, the monitoring module monitors a transmission signal from the central control host in real time, the projection signal can be determined by a predefined code or from a corresponding sending block, and when the monitoring module receives the signal, if the signal contains the predefined projection code, the signal is considered as the projection signal. Or from a predefined transmit port with a projected signal, the signal is considered a projected signal.
A display control module 15 configured to control display contents in the meter display screen;
specifically, the display control module is used for controlling the content displayed by the instrument display screen, and if the instrument host receives the projection signal from the central control host, the display control module divides the display screen into two parts, reduces the originally displayed content to be displayed in the first area, and displays the projection content from the central control host in the second area. As shown in fig. 3.
A communication module 13 configured to communicate with a central control host;
in the intelligent terminal 3, the functions of the modules are as follows:
a media content acquiring module 33 configured to store, download or generate media content, where the media content includes video, audio, pictures and texts;
a media content database 34 configured for storing the acquired media content;
the encoding module 31 is configured to encode the media content to be transmitted and then transmit the encoded media content;
and the control interaction module 32 is configured to interact with the central control host 2, and the interaction at least comprises establishing a communication connection and receiving or sending a control instruction.
In the central control host 2, the functions of the modules are as follows:
a CPU25 configured at least to be responsible for calling, logic operation, and resource allocation among the system module processes;
a communication module 24 configured for communicating with a meter host;
the application setting module 22 is configured to control the content to be displayed in the display screen controlled by the central control host;
specifically, if a plurality of display screens are configured on the central control host, the application program (APP) to be displayed can be controlled through the application setting module, and the first screen is assumed to be used as a main screen and needs to display the content comprehensively. The second screen is as vice screen, and it only needs to show the content of some on-vehicle amusement, like the APP of love skill APP, the audio-visual APP of storm wind, believe APP a little APP, QQ, sets up these APP that need show at vice screen or sets up the application that needs show at the instrument display screen through using the setting module.
A center control display screen 21 configured to display input and output contents;
and the projection module 23 is configured to monitor an operation track of the user and determine whether the operation track is a screen projection operation.
Specifically, the interaction process between the intelligent terminal 3 and the central control host 2 is as follows:
firstly, according to the user requirement, the intelligent terminal 3 is in communication connection with the central control host 2, for example, communication connection can be established in a wireless mode, then media content is acquired at the intelligent terminal 3 through a media content acquisition module, the media content acquisition module can be a built-in program, for example, a video access program, an audio access program, a browser access program and the like, website content is browsed, the website content is acquired, and if the website or the server does not allow downloading, cache content can be stored in real time. Media content includes video, audio, text, pictures, and the like. The acquired media content is stored in a media content database, the media content is coded by a coding module 31 and then transmitted to the central control host 2, and the central control host 2 decodes the media content by a decoding module 20 and then puts the decoded media content into a cache database 29 so that the central control host can display the content on a screen.
The connection, control instruction, request instruction and the like between the intelligent terminal 3 and the central control host 2 are all carried out through respective control interaction modules.
Specifically, it should be noted that the media content database 34 may be a temporary database, and may be automatically deleted after a preset time period elapses or may be automatically deleted after the power is turned off.
The cache database 29 is used for temporary storage, and when the temporary storage space is exceeded, redundant cache data is automatically deleted.
Specifically, it should be noted that the present embodiment also provides a system for performing screen projection operation by voice.
The embodiment provides that the central control host 2 further comprises a voice module 26, the voice module 26 is electrically connected with the CPU, and the voice module 26 is configured to perform a screen projection operation according to a voice instruction received from a user. Fig. 4 is a schematic structural diagram of the voice module, and as shown in fig. 4, the voice module 26 includes:
the voice recognition module is configured to recognize according to the received voice of the user, convert the voice into characters and extract keywords from the characters;
an instruction database configured to store critical instructions;
the search module is configured to search in an instruction database according to the keyword recognized by the voice recognition module to inquire whether the instruction exists;
the confirmation module is configured to send whether screen projection operation is performed or not to a user for confirmation according to the instruction found by the search module;
the transmission may be in the form of voice or picture, if voice is used, such as: "whether the navigation needs to be screen-shot", when the user says "YES" or "OK" or "YES", the user is considered to agree to screen-shot. And if the user says 'No', 'NO' and 'No', the user is considered not to be projected. When the screen is used, the center control display screen 21 pops up a prompt screen for whether to perform screen projection or not and gives a dialog box for selecting "YES" and "NO". If the user clicks YES, the screen is considered to be projected, and if the user clicks NO, the screen is not projected;
and the instruction function matching module is configured to match the corresponding application program according to the key instructions stored in the instruction database and send the application program needing screen projection to the projection module.
Specifically, it should be noted that the present embodiment further includes a rear-row display screen 27, the rear-row display screen 27 is installed at the rear of the front seat of the vehicle, and may be multiple, and the rear-row display screen 27 is used for displaying a game APP, a movie APP, a music APP, a reading APP, and the like as required. The display content can be set by the application setting module 22, so that passengers in the back row can enjoy the comfort experience brought by the in-vehicle entertainment system.
Specifically, it should be noted that "connected" and "electrically connected" in all embodiments of the present invention may include direct connection, indirect connection, and communication connection.
Example 2:
the embodiment provides a multi-screen interaction method applied to an automobile, which comprises the following steps:
step S1, the central control host acquires the content that the user needs to perform screen projection display according to the operation track of the user;
step S2, the meter host displays the content which is received from the central control host and needs to be projected on the meter display screen;
referring to fig. 5 in detail, fig. 5 is a schematic flow chart illustrating the process of inputting the content to be projected into the meter host by the central control host for display in the embodiment.
Step S1 specifically includes the following steps:
step S11, selecting an application icon by the user according to the requirement;
step S12, the user operates the application icon;
and step S13, the projection module judges whether the user needs to perform screen projection operation according to the operation track of the user and in combination with a preset rule, if so, the step S14 is executed, and if not, the process is ended.
The manipulation trajectory includes a user touching the screen with a hand to move, drag, or click the application icon or manipulate the application icon by voice.
The preset rules include three ways:
mode 1: the operation track of the user is that the user clicks an application icon and slides, whether the user needs screen projection operation or not is judged according to the sliding distance and the sliding direction, when the distance is larger than a preset value, the preset value can be 1/3, 1/4 or 1/5 screen length (which can be defined according to actual conditions), and the direction is directed to an instrument end, the screen projection operation is judged, otherwise, the screen non-projection operation is judged; referring to fig. 6, fig. 6 is a schematic diagram illustrating operation track display of the central control display screen in the embodiment. In fig. 6, a plurality of APPs are provided, and each APP can perform a screen projection operation.
In order to avoid that when the APP at the edge needs to be projected, and the sliding distance to the instrument end cannot meet the preset distance, the application icons corresponding to the Applications (APP) needing to be projected can be placed in the middle of the central control display screen through the application setting module, see fig. 7, and the application icons corresponding to the APPs needing to be projected are placed in the middle of the central control display screen in a centralized manner. In fig. 7, the middle part is for throwing screen APP concentrated area, and the screen APP is located both sides about the display screen is thrown to the non-.
Mode 2: when the operation track of the user is double-clicking the application icon and dragging the application icon to the instrument end, the screen-throwing operation is considered. The method is simple and quick, and other numerical calculations are not needed.
Mode 3: when the voice of the user needing screen projection can be matched with the predefined screen projection APP, the screen projection operation is considered.
Step S14: and the projection module sends the content to be projected to the instrument host.
Step S2 specifically includes the following steps:
step S15, the monitoring module monitors the content from the central control host and judges whether the content is the projection content, if the content is the projection content, the step S16 is executed, if the content is the non-projection content, the process is ended;
step S16, the display control module controls and displays the instrument display screen according to the projection content;
specifically, the display control module performs split-screen display on the instrument display screen according to the projection content and the content to be displayed by the instrument end in the non-projection state, the first area is used for reducing and displaying the content to be displayed by the instrument end in the non-projection state, and the second area is used for displaying the projected content. As shown in fig. 3.
Example 3
The present embodiment provides a multi-screen interaction method applied to an automobile, which includes performing multi-screen interaction through voice, specifically referring to fig. 8, where fig. 8 is a schematic flowchart of a process of performing screen projection control through voice in the present embodiment, and specifically includes the following steps:
step S21, the user initiates voice according to the function requirement;
specifically, such as: the navigation screen needs to be projected to the instrument display screen, and a user can say that the user needs to navigate and project the screen, project the screen and navigate and the like.
Step S22, the voice recognition module recognizes the voice and extracts keywords;
specifically, the voice recognition module recognizes the received voice, converts the voice into characters and extracts keywords from the characters, such as "i need to navigate and screen-cast", "navigate and screen-cast", and "screen-cast navigation" extracted from "screen-cast navigation" as the keywords.
Step S23, the searching module inquires whether there is a corresponding application program in the instruction database according to the identified keyword, if yes, the step S24 is executed, if no, the process is ended;
specifically, the search module queries the instruction database with the identified keywords by using a preset search algorithm, and if screen projection navigation is performed, the keywords correspond to a navigation program and are matched at the moment. If the recognized keyword is 'screen projection of the beauty camera', and the query in the instruction database is not time, the keyword is considered not matched, and the process is ended.
Step S24, the confirmation module sends the corresponding application program to the user in a voice or text mode to confirm whether the application program is to be projected;
specifically, the confirmation module may play and ask the user whether to screen through voice, such as: and if the user needs to navigate the screen, the user answers yes to perform screen projection operation, and if the answer is no, the process is ended. If the user does not select within a preset time, such as 15s, 20s, 10s, the process is ended.
Step S25, the instruction function module sends a signal corresponding to the application program needing screen projection to the projection module;
specifically, the command function module sends a signal generated by a program for confirming that screen projection is required to the projection module.
Step S26, the projection module sends the content to be projected to the instrument host;
step S27, the monitoring module monitors the content from the central control host and judges whether the content is the projection content, if the content is the projection content, the step S28 is executed, if the content is the non-projection content, the process is ended;
and step S28, the display control module controls and displays the instrument display screen according to the projection content.
Specifically, the display control module performs split-screen display on the instrument display screen according to the projection content and the content to be displayed by the instrument end in the non-projection state, the first area is used for reducing and displaying the content to be displayed by the instrument end in the non-projection state, and the second area is used for displaying the projected content.
Claims (7)
1. A screen projection interactive system of an intelligent terminal and vehicle-mounted entertainment equipment is characterized by comprising an instrument host (1), a central control host (2) and an intelligent terminal (3), wherein the intelligent terminal (3) is connected with the central control host (2), and the central control host (2) is connected with the instrument host (1);
the intelligent terminal (3) can send the acquired media content to the central control host (2);
the central control host (2) comprises a central control display screen (21), a rear row display screen (27) and an application setting module (22), the instrument host (1) comprises an instrument display screen (11), and the central control host (2) sends content needing screen projection display to the instrument host (1) for screen projection display according to the requirements of a user;
the rear-row display screen (27) is arranged behind a front-row seat of the vehicle, and the rear-row display screen (27) is used for setting display contents according to user requirements;
the user's requirements include operating the application icon on the central display screen (21) according to the user's request or operating the application icon by voice.
2. The screen-projection interaction system of the intelligent terminal and the vehicle-mounted entertainment equipment as claimed in claim 1, wherein the intelligent terminal (3) comprises a media content acquisition module (33), a media content database (34), a coding module (31), and a control interaction module (32), the coding module (31) is respectively connected with the media content acquisition module (33) and the control interaction module (32), and the media content acquisition module (33) is further connected with the media content database (34);
a media content acquisition module (33) configured to store, download or generate media content, the media content including video, audio, pictures, text;
a media content database (34) configured for storing the acquired media content;
the encoding module (31) is used for encoding and transmitting the media content to be transmitted;
and the control interaction module (32) is configured to interact with the central control host (2), and the interaction at least comprises establishing a communication connection and receiving or sending a control instruction.
3. The screen projection interaction system of the intelligent terminal and the vehicle-mounted entertainment equipment as claimed in claim 1, wherein the central control host (2) further comprises a decoding module (20), a control interaction module (28) and a cache database (29);
a decoding module (20) configured for decoding received media content;
a control interaction module (28) configured to interact with the intelligent terminal (3), the interaction at least including establishing a communication connection, receiving or sending a control instruction;
a cache database (29) configured for temporarily storing the decoded media content.
4. The screen projection interaction system of the intelligent terminal and the vehicle-mounted entertainment equipment as claimed in claim 1, wherein the meter host (1) further comprises a CPU (14), a display control module (15), a monitoring module (12), and a communication module (13), wherein the display control module (15) and the monitoring module (12), and the communication module (13) is respectively connected with the CPU (14);
the CPU (14) is at least configured to be responsible for calling, logic operation and resource allocation among the module processes of the system;
a meter display screen (11) configured to display contents of the input and output;
the monitoring module (12) is configured to monitor the signal transmitted from the central control host (2) and judge whether the signal is a projection signal;
a display control module (15) configured to control display content in the meter display screen.
5. The screen projection interaction system of the intelligent terminal and the vehicle-mounted entertainment equipment as claimed in claim 1, wherein the central control host (2) further comprises a CPU (25), a communication module (24) and a projection module (23), wherein the communication module (24) and the projection module (23) are respectively electrically connected with the CPU (25);
the CPU (25) is at least configured to be responsible for calling, logic operation and resource allocation among the module processes of the system;
a communication module (24) configured for communicating with a meter host (1);
and the projection module (23) is configured to monitor the operation track of the user and judge whether the operation track is a screen projection operation.
6. The screen-projection interaction system of the intelligent terminal and the vehicle-mounted entertainment equipment as claimed in claim 1, wherein the central control host (2) further comprises an application setting module (22), and the application setting module (22) is configured to control the content to be displayed in the display screen controlled by the central control host (2);
well accuse host computer (2) and instrument host computer (1) connected mode includes wired connection and wireless connection, among the wired connection, includes at least one kind in on-vehicle ethernet bus, LVDS bus, CAN bus, HDMI, SPI, I2C, DVI, the VGA, includes in the wireless connection mode: WIFI, Bluetooth, 4G and 5G.
7. The screen projection interaction system of the intelligent terminal and the vehicle-mounted entertainment equipment as claimed in claim 1, wherein the instrument display screen (11) is used for displaying preset contents when the projection contents of the central control host (2) are absent, and the preset contents comprise engine speed, automobile tire pressure, automobile body state and automobile driving speed; the automobile body state comprises an opening and closing state of an automobile door, an opening state of a hand brake, an opening and closing state of an automobile window, an opening and closing state of an automobile lamp, an opening and closing state of a windshield wiper, the amount of gasoline in an automobile oil tank and the temperature.
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