CN110933123A - Method, equipment and device for realizing vehicle networking - Google Patents
Method, equipment and device for realizing vehicle networking Download PDFInfo
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- CN110933123A CN110933123A CN201811103150.XA CN201811103150A CN110933123A CN 110933123 A CN110933123 A CN 110933123A CN 201811103150 A CN201811103150 A CN 201811103150A CN 110933123 A CN110933123 A CN 110933123A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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Abstract
The embodiment of the invention discloses a method, equipment and a device for realizing vehicle networking, which relate to the technical field of vehicles, wherein the method comprises the following steps: receiving a request initiated by a vehicle-mounted device, and acquiring information of the request of the vehicle-mounted device from a network side; and converting the information into interface information supported by the vehicle equipment, and sending the interface information to the vehicle equipment. The embodiment of the invention can realize wireless internet surfing and real-time updating of applications such as audio, video and the like, is simple to operate and improves user experience.
Description
Technical Field
The embodiment of the invention relates to the technical field of vehicles, in particular to a method, equipment and a device for vehicle networking.
Background
In the prior art, the vehicle-mounted information system can be divided into an entertainment system and an information system according to the difference of functional forms of products. The vehicle-mounted information system is a vehicle-mounted integrated information processing system terminal formed by adopting a vehicle-mounted special central processing unit and based on a vehicle body bus system, a 3G/4G mobile network, a wireless communication and satellite navigation technology, an internet service and the like, and provides professional geographic information service, multimedia entertainment service and intelligent traffic service for users, so that the driving safety and comfort are improved.
With the development of automobile intellectualization, the automobile electronic technology has a necessary trend from discrete electronic component control to component independent control, and the conversion and transmission of audio/video and data services are realized by utilizing an integrated vehicle-mounted product form.
The current car machine equipment (or car machine peripheral equipment, vehicle-mounted DA equipment or DA equipment) can realize audio, video, FM radio playing, GPS positioning and the like, but cannot realize wireless internet, so that the audio, video, GPS and the like cannot be updated in real time.
Disclosure of Invention
The embodiment of the invention provides a vehicle networking method, equipment and a device, which solve the problem of vehicle networking and achieve the purpose of updating audio, video, GPS and the like in real time.
The embodiment of the invention provides equipment for realizing vehicle networking, which comprises:
the central processing unit is used for receiving a request initiated by the vehicle equipment and acquiring information of the request of the vehicle equipment from a network side by using the networking unit;
and the signal automatic selection processing unit is used for converting the information into interface information supported by the vehicle equipment and sending the interface information to the vehicle equipment.
The embodiment of the invention provides a device for realizing vehicle networking, which comprises:
the vehicle-mounted communication equipment is used for sending a request to the vehicle-mounted communication equipment;
and the vehicle-mounted communication equipment is used for acquiring the information requested by the vehicle equipment from a network side by using the networking unit, converting the information into interface information supported by the vehicle equipment by using the signal automatic selection processing unit, and sending the interface information to the vehicle equipment.
The embodiment of the invention provides a method for realizing vehicle networking, which comprises the following steps:
receiving a request initiated by a vehicle-mounted device, and acquiring information of the request of the vehicle-mounted device from a network side;
and converting the information into interface information supported by the vehicle equipment, and sending the interface information to the vehicle equipment.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the embodiment of the invention utilizes the vehicle-mounted equipment and the HDMI or MHL interface and the Micro USB interface which are arranged on the vehicle-mounted equipment to be interconnected and interacted with the vehicle-mounted communication equipment, so as to form a new device capable of realizing vehicle networking.
Drawings
FIG. 1 is a schematic flow chart of a method for implementing vehicle networking provided by an embodiment of the invention;
FIG. 2 is a first schematic block diagram of an apparatus for implementing vehicle networking provided by an embodiment of the present invention;
FIG. 3 is a second schematic block diagram of an apparatus for implementing vehicle networking provided by an embodiment of the present invention;
FIG. 4 is a third schematic block diagram of an apparatus for implementing vehicle networking provided by the embodiment of the invention;
FIG. 5 is a fourth schematic block diagram of an apparatus for implementing vehicle networking provided by an embodiment of the present invention;
FIG. 6 is a schematic overall framework diagram of a device for realizing vehicle networking provided by the embodiment of the invention;
fig. 7 is a schematic circuit diagram of an automatic power processing unit and a power supply processing unit according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of USB connection between the onboard DA device and the T-BOX provided in the embodiments of the present invention; .
FIG. 9 is a schematic MHL connection between an onboard DA device and a T-BOX according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of HDMI connection between the vehicle-mounted DA device and the T-BOX according to the embodiment of the present invention;
FIG. 11 is a schematic diagram of an audio, video, and data signal processing flow according to an embodiment of the present invention;
fig. 12 is a schematic diagram of a power signal processing flow according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and it should be understood that the embodiments described below are only for illustrating and explaining the present invention and are not intended to limit the present invention.
In the vehicle-mounted information system, a command (which may be transmitted, converted, and processed through a key or a touch screen) sent by a vehicle-mounted device (or a vehicle-mounted peripheral device, an existing vehicle-mounted DA device, or a DA device) needs to be transmitted, converted, and processed by another device. In order to transmit audio signals, video signals, data signals and the like between the T-BOX and the vehicle-mounted DA device, the transmission may be implemented through interfaces such as a mobile High-Definition Link (MHL), a High-Definition multimedia interface (HDMI), and a Universal Serial Bus (USB). All three interfaces can be existing in DA equipment and can be used for transmitting audio, video and data signals and supplying power to peripheral equipment. However, since a general Central Processing Unit (CPU) cannot directly support MHL and HDMI interfaces, an MHL conversion HDMI adapter unit and a signal automatic selection processing unit are required to convert related audio and video signals and then interact with the CPU. The embodiment of the invention can realize wireless internet access and real-time update of various applications by utilizing the interaction of the T-BOX and the vehicle-mounted DA equipment.
Fig. 1 is a schematic flowchart of a method for implementing vehicle networking, according to an embodiment of the present invention, as shown in fig. 1, the method may include:
step S101: receiving a request initiated by the vehicle-mounted equipment, and acquiring information requested by the vehicle-mounted equipment from a network side.
Step S102: and converting the information into interface information supported by the vehicle equipment, and sending the interface information to the vehicle equipment.
In one embodiment, the method is applied to a device comprising a vehicle-mounted device and a vehicle-mounted communication device.
In this embodiment, when step S101 is executed, the vehicle-mounted communication device receives a request initiated by the vehicle-mounted device through its USB interface, and acquires information requested by the vehicle-mounted device from a network side by using its networking unit.
In this embodiment, the networking unit may be one or more of a 2G, 3G, 4G, 5G unit.
In this embodiment, if the in-vehicle device only has a USB interface, the in-vehicle communication device converts the information into USB interface information and transmits the information to the USB interface only of the in-vehicle device through the USB interface when executing step S102.
In this embodiment, if the car-mounted device has a USB interface and an MHL interface, the vehicle-mounted communication device converts the information into MHL interface information when the type of the information is a multimedia type, and sends the MHL interface information to the MHL interface of the car-mounted device via the MHL interface, and converts the information into USB interface information when the type of the information is a non-multimedia type, and sends the USB interface information to the USB interface of the car-mounted device via the USB interface.
The MHL is a video and audio standard interface connected with the portable consumer electronic device, and can be displayed on a high-definition television through a standard HDMI input interface by using only one signal cable. The Micro USB interface is applied, and the complete media content can be directly transmitted to a television without damaging the effect of high resolution of a film no matter the Micro USB interface is a mobile phone, a digital camera, a digital video camera or a portable multimedia player.
The HDMI is a digital video/audio interface technology, is a dedicated digital interface suitable for video transmission, can simultaneously transmit audio and video signals, and has a maximum data transmission speed of 48 Gbps.
The resolution of the terminal (such as a mobile phone) in the prior art for projecting video to a car machine device for display is not high, but the embodiment of the invention adopts an MHL interface and an HDMI interface to transmit video and/or audio, so that the video resolution is improved.
In another embodiment, the method is applied to a device comprising a car machine device, an MHL conversion HDMI adaptation unit and a car communication device.
In this embodiment, when step S101 is executed, the vehicle-mounted communication device receives, through its USB interface, a request initiated by the vehicle-mounted device via the MHL conversion HDMI adapter unit, and acquires, by using its networking unit, information requested by the vehicle-mounted device from a network side.
In this embodiment, the networking unit may be one or more of a 2G, 3G, 4G, 5G unit.
In this embodiment, if the in-vehicle device only has a USB interface, in step S102, the vehicle-mounted communication device converts the information into USB interface information, and transmits the USB interface information via the USB interface, where the USB interface information is transmitted to the USB interface of the in-vehicle device by the MHL-to-HDMI adapter unit.
In this embodiment, if the vehicle-mounted device has a USB interface and an MHL interface, the vehicle-mounted communication device converts the information into MHL interface information when the type of the information is a multimedia type, and the MHL interface information is transmitted to the MHL interface of the vehicle-mounted device through the MHL-to-HDMI adapter unit. And when the type of the information is a non-multimedia type, converting the information into USB interface information, and sending the USB interface information through a USB interface of the information, wherein the USB interface information is transmitted to the USB interface of the vehicle equipment by the MHL-to-HDMI adapter unit.
In this embodiment, if the car device has a USB interface and an HDMI interface, the MHL conversion HDMI adapter unit obtains USB interface information output by the car-mounted communication device through one USB interface of the MHL conversion HDMI adapter unit, and sends the USB interface information to the USB interface of the car device through another USB interface of the MHL conversion HDMI adapter unit; and/or the MHL conversion HDMI adaptation unit acquires the MHL interface information output by the vehicle-mounted communication equipment through an MHL interface of the MHL conversion HDMI adaptation unit, converts the MHL interface information into HDMI interface information, and then sends the HDMI interface information to the HDMI interface of the vehicle equipment through the HDMI interface of the vehicle-mounted equipment.
It should be noted that, in the apparatus including the in-vehicle device, the MHL conversion HDMI adapter unit, and the vehicle-mounted communication device, the MHL conversion HDMI adapter unit may be integrated with the vehicle-mounted communication device, or may be separated from the vehicle-mounted communication device as an independent device.
The existing vehicle equipment can realize audio, video, FM radio playing, GPS positioning and the like, but cannot realize wireless internet access, so that the audio, the video, the GPS and the like cannot be updated in real time, even though the same screen effect can be achieved by connecting a terminal (such as a mobile phone) through a USB-to-HDMI mobile phone video conversion line, the video of the terminal (such as a mobile phone) can only be synchronized to the vehicle equipment, the audio needs to be connected to a sound box on a vehicle through the Bluetooth of the terminal (such as a mobile phone), and the user experience is reduced. The embodiment of the invention utilizes the vehicle-mounted equipment and the HDMI or MHL interface and the Micro USB interface which are arranged on the vehicle-mounted equipment to be interconnected and interacted with the vehicle-mounted communication equipment, so that a novel device capable of realizing vehicle networking is formed, the vehicle networking is realized, the audio, the video, the GPS and the like can be updated in real time, and the user experience is improved.
On the basis of the above embodiment, the method further includes:
the vehicle-mounted communication equipment obtains power supply voltage, such as 5V, from the vehicle-mounted equipment from an MHL interface or a USB interface of the vehicle-mounted communication equipment, then converts the power supply voltage into working voltage required by normal work of the vehicle-mounted equipment, such as voltage reduction processing is carried out on the 5V power supply voltage, and 3.8V working voltage is obtained, so that power is supplied to other units in the vehicle-mounted communication equipment.
For the scheme that a terminal (such as a mobile phone) is adopted to transmit audio and video data to the vehicle-mounted device in the prior art, because the electric quantity of a lithium battery used by the terminal (such as the mobile phone) is limited, when the electric quantity is low, the battery is charged by using a cigarette lighter or a charger, and the like, and the vehicle-mounted communication device provided by the embodiment of the invention is not charged by using the cigarette lighter or the charger, but is powered by the vehicle-mounted device, so that the user experience can be improved.
Fig. 2 is a first schematic structural block diagram of a device for implementing vehicle networking according to an embodiment of the present invention, and as shown in fig. 2, the device is an in-vehicle communication device, and the device may include a networking unit 1, a CPU2, and an automatic signal selection processing unit 3, where the CPU2 and the automatic signal selection processing unit 3 may be connected through I2S, MIPI, and USB.
The networking unit 1 may be one or more of 2G, 3G, 4G, and 5G units, and is configured to interact with a base station to obtain information on a network side.
The CPU2 is configured to receive a request initiated by a car machine device, and acquire information requested by the car machine device from a network side by using the networking unit 2. In an embodiment, if the in-vehicle device only has a USB interface, the signal automatic selection processing unit is specifically configured to convert the information into USB interface information, and send the information to the USB interface only of the in-vehicle device through the USB interface. In another embodiment, if the car-in-vehicle device has an MHL interface and a USB interface, the signal automatic selection processing unit is specifically configured to convert the information into MHL interface information and send the MHL interface information to the MHL interface of the car-in-vehicle device via the MHL interface when the type of the information is a multimedia type, and convert the information into USB interface information and send the USB interface information to the USB interface of the car-in-vehicle device via the USB interface when the type of the information is a non-multimedia type.
And the signal automatic selection processing unit 3 is used for converting the information into interface information supported by the vehicle machine equipment and sending the interface information to the vehicle machine equipment.
The workflow of the device comprises:
step 201: the signal automatic selection processing unit 3 receives a request initiated by the in-vehicle device from the USB interface, and sends the request to the CPU2 from the USB interface.
Step 202: if the local information does not have the requested information, the CPU2 interacts with the base station by using the networking unit 1 to obtain the information requested by the car machine device from the network side.
Step 203 a: when the car machine equipment only has a USB interface, the signal automatic selection processing unit 2 converts the information into USB interface information, and sends the information to the USB interface of the car machine equipment only via the USB interface.
Step 203 b: when the car-in-vehicle equipment is provided with an MHL interface and a USB interface, if the information is audio information, the CPU2 transmits the information to the signal automatic selection processing unit 3 through I2S, the signal automatic selection processing unit 3 converts the information into MHL interface information, and the MHL interface information is sent to the MHL interface of the car-in-vehicle equipment through the MHL interface; if the information is video information, the CPU2 transmits the information to the signal automatic selection processing unit 3 by MIPI, and the signal automatic selection processing unit 3 converts the information into MHL interface information and sends the MHL interface information to the MHL interface of the in-vehicle equipment through the MHL interface; if the information is data information, the CPU2 converts the information into USB interface information through a USB, and sends the information to the USB interface of the in-vehicle device through the USB interface.
The embodiment of the invention can realize interconnection and interaction between the vehicle-mounted equipment and the vehicle-mounted communication equipment, and realize vehicle networking and information updating of the vehicle-mounted equipment.
Fig. 3 is a second schematic structural block diagram of a device for implementing vehicle networking according to an embodiment of the present invention, as shown in fig. 3, and on the basis of fig. 2, the device may further include an MHL conversion HDMI adapting unit 4.
The MHL conversion HDMI adapting unit 4 is configured to obtain USB interface information output by the signal automatic selection processing unit 3 from one USB interface thereof, and send the USB interface information to a USB interface of the in-vehicle device via another USB interface thereof; and/or acquiring the MHL interface information output by the signal automatic selection processing unit 3 from an MHL interface of the vehicle-mounted device, and sending the MHL interface information to the MHL interface of the vehicle-mounted device through the MHL interface of the vehicle-mounted device, or converting the MHL interface information into HDMI interface information and then sending the HDMI interface information to the HDMI interface of the vehicle-mounted device through the HDMI interface of the vehicle-mounted device.
The workflow of the device comprises:
step 301: the request initiated by the car machine device is transmitted from the MHL conversion HDMI adapting unit 4, the signal automatic selection processing unit 3 to the CPU2 in turn via USB connection.
Step 302: if the local information does not have the requested information, the CPU2 interacts with the base station by using the networking unit 1 to obtain the information requested by the car machine device from the network side.
Step 303 a: when the car device only has a USB interface, the signal automatic selection processing unit 2 converts the information into USB interface information, and sends the information through the USB interface, and the USB interface information is transparently transmitted to the USB interface of the car device by the MHL-to-HDMI adapting unit 4.
Step 303 b: when the car-mounted device is provided with an MHL interface and a USB interface, if the information is audio information, the CPU2 transmits the information to the signal automatic selection processing unit 3 through I2S, the signal automatic selection processing unit 3 converts the information into MHL interface information, and transmits the MHL interface information through the MHL interface, and the MHL interface information is transparently transmitted to the MHL interface of the car-mounted device by the MHL conversion HDMI adapting unit 4; if the information is video information, the CPU2 transmits the information to the signal automatic selection processing unit 3 by MIPI, the signal automatic selection processing unit 3 converts the information into MHL interface information, and transmits the MHL interface information via the MHL interface, and similarly, the MHL interface information is transmitted to the MHL interface of the car machine device by the MHL conversion HDMI adapting unit 4; if the information is data information, the CPU2 converts the information into USB interface information through USB and transmits the USB interface information via the USB interface, where the USB interface information is passed through to the USB interface of the in-vehicle device by the MHL conversion HDMI adapting unit 4.
Step S303 c: when the car device has an HDMI interface and a USB interface, if the information is audio information, the CPU2 transmits the information to the signal automatic selection processing unit 3 through I2S, the signal automatic selection processing unit 3 converts the information into MHL interface information, and sends the MHL interface information via the MHL interface, and the MHL interface information is converted into HDMI interface information by the MHL conversion HDMI adapter unit 4, and sends the HDMI interface information to the HDMI interface of the car device via the HDMI interface; if the information is video information, the CPU2 transmits the information to the signal automatic selection processing unit 3 by MIPI, the signal automatic selection processing unit 3 converts the information into MHL interface information and transmits the MHL interface information via the MHL interface, and similarly, the MHL interface information is converted into HDMI interface information by the MHL-to-HDMI adapting unit 4 and transmits the HDMI interface information to the HDMI interface of the in-vehicle device via the HDMI interface; if the information is data information, the CPU2 converts the information into USB interface information through USB and transmits the USB interface information via the USB interface, where the USB interface information is passed through to the USB interface of the in-vehicle device by the MHL conversion HDMI adapting unit 4.
The embodiment of the invention can realize interconnection and interaction between the vehicle-mounted equipment and the vehicle-mounted communication equipment, and realize vehicle networking and information updating of the vehicle-mounted equipment.
Fig. 4 is a third schematic structural block diagram of an apparatus for implementing vehicle networking according to an embodiment of the present invention, as shown in fig. 4, and on the basis of fig. 2, the apparatus may further include:
and the power supply automatic processing unit 5 is used for acquiring a power supply voltage, such as a 5V voltage, from the MHL interface or the USB interface of the signal automatic selection processing unit.
And the power supply processing unit 6 is used for converting the power supply voltage into a working voltage required by normal operation of the equipment, for example, the working voltage is subjected to voltage reduction processing to be 3.8V and/or 1.8V, and the required working voltage is provided for other units in the equipment.
Fig. 5 is a fourth schematic structural block diagram of the device for implementing vehicle networking according to the embodiment of the present invention, as shown in fig. 5, and on the basis of fig. 3, the device further includes the power supply automatic processing unit 5 and the power supply processing unit 6 of fig. 4. The functions of the power automatic processing unit 5 and the power supply processing unit 6 are the same as those of fig. 4, and are not described in detail herein.
According to fig. 2 and 4, an embodiment of the present invention may provide an apparatus for implementing vehicle networking, which may include:
the vehicle-mounted communication equipment is used for sending a request to the vehicle-mounted communication equipment;
and the vehicle-mounted communication equipment is used for acquiring the information requested by the vehicle equipment from a network side by using the networking unit, converting the information into interface information supported by the vehicle equipment by using the signal automatic selection processing unit, and sending the interface information to the vehicle equipment.
As can be seen from the embodiments of fig. 3 and 5, the MHL-conversion HDMI adapting unit 4 can be integrated in the vehicle-mounted communication device. In practical applications, the MHL-to-HDMI adapter unit 4 can also be used as an independent device, and based on this, the apparatus for implementing vehicle networking provided by the embodiment of the present invention can further include: the MHL conversion HDMI adaptation unit is used for acquiring USB interface information output by the signal automatic selection processing unit from one USB interface of the MHL conversion HDMI adaptation unit and sending the USB interface information to a USB interface of the vehicle equipment through the other USB interface of the MHL conversion HDMI adaptation unit; and/or the MHL interface information is used for acquiring the MHL interface information output by the signal automatic selection processing unit from the MHL interface of the vehicle-mounted device, and the MHL interface information is sent to the MHL interface of the vehicle-mounted device through the MHL interface of the vehicle-mounted device, or the MHL interface information is converted into HDMI interface information and then sent to the HDMI interface of the vehicle-mounted device through the HDMI interface of the vehicle-mounted device.
On the basis of the above embodiment, the vehicle-mounted communication device of the apparatus may further use its power supply automatic processing unit to obtain the power supply voltage from the vehicle-mounted device from the MHL interface or the USB interface of the signal automatic selection processing unit, and use its power supply processing unit to convert the power supply voltage into the working voltage required for normal operation.
The following describes in detail the device for implementing vehicle networking, which includes an onboard DA device, an MHL-HDMI adapter unit 4, and a T-BOX, with reference to fig. 6 to 12.
Fig. 6 is a schematic overall framework diagram of an apparatus for implementing vehicle networking, according to an embodiment of the present invention, and as shown in fig. 6, the apparatus may include: the system comprises an on-vehicle DA device, an MHL conversion HDMI adaptation unit, a signal automatic selection processing unit, a CPU, a networking unit (such as a 2G/3G/4G/5G unit), an HDMI interface or an MHL interface for interactive use, and a USB interface. The vehicle-mounted DA equipment interacts with the T-BOX by utilizing an HDMI interface, an MHL interface and a USB interface, and transmits audio signals, video signals, data signals and the like. The method comprises the following specific steps:
1. vehicle-mounted DA equipment: the vehicle-mounted device is provided with a key (or a touch screen) input function, an audio output function and a video output function.
MHL conversion HDMI adaptation unit: the conversion between the MHL interface and the HDMI interface is realized.
When the interface provided by the vehicle-mounted DA equipment is an HDMI, the unit automatically converts the MHL interface into an HDMI interface;
when the interface provided by the vehicle-mounted DA device is an MHL interface or a USB interface, signals, data and power can directly pass through the unit.
3. The signal automatic selection processing unit: the method has the capability of automatically identifying the MHL interface and the USB interface.
4, the CPU: and processing the data and signals transmitted from the outside.
5. A networking unit: and the wireless communication terminal is in charge of interacting with the CPU to realize wireless communication processing.
The device can also comprise a power supply automatic processing unit and a power supply processing unit, and the device comprises the following specific components:
6. the power supply automatic selection processing unit: and the vehicle-mounted DA equipment supplies power to the T-BOX.
This unit may be an "alternative switch" in fig. 7, which automatically recognizes whether the power supply is from the MHL interface or the USB interface. When both interfaces are powered on at the same time, one of the interfaces (for example, the USB interface is powered on) is preferentially selected to be transmitted to the next stage of power supply processing unit.
7. A power supply processing unit: the power supply (generally 5V) obtained from the power supply automatic selection processing unit is converted into various voltages required by the CPU, the networking unit and the like, for example, 3.8V (or 3.6V), 1.8V and the like, the unit may adopt a DC/DC BUCK circuit shown in fig. 7, and the circuit may adopt an existing circuit, which is not described herein again.
In the first embodiment, the T-BOX includes a signal auto-selection processing unit, a CPU, and a networking unit.
In a second embodiment, the T-BOX includes a signal automatic selection processing unit, a CPU, a networking unit, a power supply automatic processing unit, and a power supply processing unit.
In a third embodiment, the T-BOX comprises a signal automatic selection processing unit, a CPU, a networking unit and an MHL conversion HDMI adaptation unit.
In a fourth embodiment, the T-BOX includes a signal automatic selection processing unit, a CPU, a networking unit, an MHL-conversion HDMI adapting unit, a power supply automatic processing unit, and a power supply processing unit.
It should be noted that, for the prior art, in the scheme of using the terminal (e.g., mobile phone) to transmit the audio and video data to the vehicle-mounted DA device, the steps of downloading the application software on the terminal (e.g., mobile phone) and then connecting with the connection converter are required, which is complicated to operate, and the terminal (e.g., mobile phone) needs to be reconnected with the application software each time, which is not very practical. The T-BOX and the vehicle-mounted DA equipment in the embodiment of the invention are interconnected and interacted after being converted through the existing interface, can be automatically connected after being started, and is very convenient to operate.
It should be noted that, in the prior art, in a scheme of transmitting audio and video data to the vehicle-mounted DA device by using a terminal (e.g., a mobile phone), it is difficult to find a position where a signal is relatively strongest in a small space in an automobile to fix the terminal (e.g., the mobile phone), and the T-BOX of the embodiment of the present invention may be fixedly installed at a position where the signal in the automobile is relatively strong, so that the network signal can be more smoothly received and transmitted.
It should be noted that, in the prior art, a terminal (e.g., a mobile phone) is used for GPS positioning, since the terminal (e.g., the mobile phone) is not a dedicated device and has a slow transmission rate, a GPS unit may be configured in the T-BOX of the embodiment of the present invention, and the T-BOX is dedicated to a vehicle-mounted product.
It should be noted that the T-BOX is a vehicle-mounted dedicated communication device, and the transmission rate of audio, video and data is fast.
It should be noted that the power supply of the T-BOX is provided by a car machine (or an on-board DA device), and may be provided with a backup battery.
The interaction mode between the vehicle-mounted DA device and the T-BOX can be through an HDMI interface, an MHL interface or a USB interface. Taking the second embodiment as an example, the interface modes for transmitting Audio (Audio) signals, Video (Video) signals and data signals between the vehicle-mounted DA device and the T-BOX may include, but are not limited to, three structures shown in fig. 8 to 10. As shown in fig. 8, when the vehicle-mounted DA device only has a USB interface, audio, video, communication, and power are transmitted through the USB interface; as shown in fig. 9, when the vehicle-mounted DA device has the MHL interface and the USB interface, audio and video signals are transmitted by the MHL interface, and communication and power supply are transmitted by the USB interface; as shown in fig. 10, when the vehicle DA device has HDMI and USB interfaces, communication and power supply are transmitted by the USB interface, and audio and video signals are transmitted by the HDMI interface, but the MHL interface must be converted to the HDMI interface by the "MHL conversion HDMI adapting unit".
It should be noted that the vehicle-mounted DA device according to the embodiment of the present invention may have a display screen 8 and keys 9 as shown in fig. 8 to 12.
Fig. 11 is a schematic diagram of a processing flow of audio, video, and data signals according to an embodiment of the present invention, and as shown in fig. 11, the processing flow may include:
steps S701 to S702: when the DA equipment recognizes that the key is pressed (the touch screen operates the same), the DA equipment recognizes a demand instruction, and after decoding, the DA equipment sends data to a CPU in the T-BOX through a USB interface.
This process requires going through the "MHL conversion HDMI adaptation unit" and the "signal automatic selection processing unit", which are through in both parts.
Step S703: and when the CPU receives the instruction, processing.
Steps S704 to S708: if the memory of the T-BOX stores the required content, the T-BOX can be directly called; if the T-BOX memory does not have the needed content, the CPU is required to interact with the networking unit (such as the 4G unit), the requirement is sent out through the antenna after decoding, and the CPU interacts with the base station to download the needed content to the local. Then audio and video signals are transmitted through an I2S interface and an MIPI interface respectively; if the data is transmitted through the USB interface.
When the interface of the DA device is HDMI and USB, the I2S and MIPI interface signals are first converted into MHL interface signals by the signal automatic selection processing unit, and the MHL interface signals need to be converted into HDMI interface signals by the MHL conversion HDMI adapting unit before being transmitted to the DA device. The USB interface signal is directly connected with the signal automatic selection processing unit and the MHL conversion HDMI adapting unit.
When the interface of the DA device is MHL and USB, the I2S and MIPI interface signals are firstly converted into MHL interface signals through the signal automatic selection processing unit, and the MHL interface signals directly reach the DA device through the MHL conversion HDMI adapting unit. The USB interface signal is directly connected with the signal automatic selection processing unit and the MHL conversion HDMI adapting unit.
Step S709: after the DA equipment receives the signals, video playing can be carried out on the display screen, and sound is played through the loudspeaker. Of course, if a GPS positioning map is needed, the GPS positioning map can also be displayed on the display screen in real time.
Fig. 12 is a schematic diagram of a power signal processing flow provided by an embodiment of the present invention, and as shown in fig. 12, the flow may include:
step S801: the power supply for the T-BOX is provided by the DA device, typically 5V.
Step S802 to step S804: the power supply signal is direct-connected in the HDMI conversion adaptive unit, after reaching the power supply automatic processing unit, the power supply signal automatically judges whether the power supply is provided by the MHL interface or the USB interface, when the two interfaces are powered simultaneously, one of the two interfaces (for example, the USB interface is powered) is preferentially selected, then the power supply processing unit carries out voltage reduction conversion processing, and each path of voltage required by the CPU, the networking unit (for example, the 4G unit) and the like is obtained.
One of ordinary skill in the art will appreciate that all or some of the steps of the methods, systems, and functional units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
The embodiment of the invention utilizes the vehicle-mounted DA equipment and the existing interfaces of MHL, HDMI, USB and the like to form a new device with the T-BOX, the new device realizes the purpose that wireless internet access, audio and video information, GPS positioning information and the like can be updated in real time, the operation is simple, the signal intensity is high, and the user experience is improved.
Although the present invention has been described in detail hereinabove, the present invention is not limited thereto, and various modifications can be made by those skilled in the art in light of the principle of the present invention. Thus, modifications made in accordance with the principles of the present invention should be understood to fall within the scope of the present invention.
Claims (12)
1. An apparatus for enabling vehicle networking, the apparatus comprising:
the central processing unit is used for receiving a request initiated by the vehicle equipment and acquiring information of the request of the vehicle equipment from a network side by using the networking unit;
and the signal automatic selection processing unit is used for converting the information into interface information supported by the vehicle equipment and sending the interface information to the vehicle equipment.
2. The device according to claim 1, wherein the signal auto-selection processing unit is specifically configured to convert the information into USB interface information, and send the information to a USB interface that the in-vehicle device only has via a USB interface thereof.
3. The device according to claim 1, wherein the signal auto-selection processing unit is specifically configured to, when the type of the information is a multimedia type, convert the information into MHL interface information and send the MHL interface information to the MHL interface of the in-vehicle device via the MHL interface thereof, and when the type of the information is a non-multimedia type, convert the information into USB interface information and send the USB interface information to the USB interface of the in-vehicle device via the USB interface thereof.
4. The apparatus of claim 1, further comprising:
the MHL conversion HDMI adaptation unit is used for acquiring USB interface information output by the signal automatic selection processing unit from one USB interface of the MHL conversion HDMI adaptation unit and sending the USB interface information to a USB interface of the vehicle equipment through the other USB interface of the MHL conversion HDMI adaptation unit; and/or acquiring the MHL interface information output by the signal automatic selection processing unit from an MHL interface of the vehicle-mounted device, and sending the MHL interface information to the MHL interface of the vehicle-mounted device through the MHL interface of the vehicle-mounted device, or converting the MHL interface information into HDMI interface information and then sending the HDMI interface information to the HDMI interface of the vehicle-mounted device through the HDMI interface of the vehicle-mounted device.
5. The apparatus of any of claims 1-4, wherein the means further comprises:
the power supply automatic processing unit is used for acquiring power supply voltage from the vehicle equipment from an MHL interface or a USB interface of the signal automatic selection processing unit;
and the power supply processing unit is used for converting the power supply voltage into working voltage required by normal work of the equipment.
6. An apparatus for enabling vehicle networking, the apparatus comprising:
the vehicle-mounted communication equipment is used for sending a request to the vehicle-mounted communication equipment;
and the vehicle-mounted communication equipment is used for acquiring the information requested by the vehicle equipment from a network side by using the networking unit, converting the information into interface information supported by the vehicle equipment by using the signal automatic selection processing unit, and sending the interface information to the vehicle equipment.
7. The apparatus of claim 6, further comprising:
the MHL conversion HDMI adaptation unit is used for acquiring USB interface information output by the signal automatic selection processing unit from one USB interface of the MHL conversion HDMI adaptation unit and sending the USB interface information to a USB interface of the vehicle equipment through the other USB interface of the MHL conversion HDMI adaptation unit; and/or the MHL interface information is used for acquiring the MHL interface information output by the signal automatic selection processing unit from the MHL interface of the vehicle-mounted device, and the MHL interface information is sent to the MHL interface of the vehicle-mounted device through the MHL interface of the vehicle-mounted device, or the MHL interface information is converted into HDMI interface information and then sent to the HDMI interface of the vehicle-mounted device through the HDMI interface of the vehicle-mounted device.
8. The apparatus according to claim 6 or 7, wherein the vehicle-mounted communication device is further configured to obtain, by using an automatic power supply processing unit thereof, a power supply voltage from the in-vehicle device from an MHL interface or a USB interface of the automatic signal selection processing unit, and convert the power supply voltage into an operating voltage required for normal operation by using a power supply processing unit thereof.
9. A method of enabling vehicle networking, the method comprising:
receiving a request initiated by a vehicle-mounted device, and acquiring information of the request of the vehicle-mounted device from a network side;
and converting the information into interface information supported by the vehicle equipment, and sending the interface information to the vehicle equipment.
10. The method according to claim 9, wherein the method is applied to a device comprising a vehicle-mounted device and a vehicle-mounted communication device, and the converting the information into interface information supported by the vehicle-mounted device and sending the interface information to the vehicle-mounted device comprises:
the vehicle-mounted communication equipment converts the information into USB interface information and sends the information to a USB interface only possessed by the vehicle-mounted equipment through the USB interface; alternatively, the first and second electrodes may be,
when the type of the information is a multimedia type, the vehicle-mounted communication equipment converts the information into MHL interface information and sends the MHL interface information to an MHL interface of the vehicle-mounted equipment through the MHL interface; and when the type of the information is a non-multimedia type, converting the information into USB interface information, and sending the information to a USB interface of the vehicle equipment through the USB interface.
11. The method according to claim 9, wherein the method is applied to a device comprising an in-vehicle device, an MHL conversion HDMI adaptation unit, and a vehicle-mounted communication device, and the converting the information into interface information supported by the in-vehicle device and sending the interface information to the in-vehicle device comprises:
the MHL conversion HDMI adaptation unit acquires USB interface information output by the vehicle-mounted communication equipment through one USB interface of the MHL conversion HDMI adaptation unit, and sends the USB interface information to a USB interface of the vehicle-mounted equipment through the other USB interface of the MHL conversion HDMI adaptation unit; and/or
The MHL conversion HDMI adaptation unit acquires the MHL interface information output by the vehicle-mounted communication equipment through an MHL interface of the MHL conversion HDMI adaptation unit, and sends the MHL interface information to the MHL interface of the vehicle-mounted equipment through the MHL interface of the MHL conversion HDMI adaptation unit, or sends the MHL interface information to the HDMI interface of the vehicle-mounted equipment through the HDMI interface of the vehicle-mounted equipment after the MHL interface information is converted into the HDMI interface information.
12. The method according to claim 10 or 11, characterized in that the method further comprises:
the vehicle-mounted communication equipment acquires power supply voltage from the vehicle equipment from an MHL interface or a USB interface of the vehicle-mounted communication equipment;
and the vehicle-mounted communication equipment converts the power supply voltage into working voltage required by normal work of the vehicle-mounted communication equipment.
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| CN201811103150.XA CN110933123A (en) | 2018-09-20 | 2018-09-20 | Method, equipment and device for realizing vehicle networking |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811103150.XA CN110933123A (en) | 2018-09-20 | 2018-09-20 | Method, equipment and device for realizing vehicle networking |
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