WO2024037454A1 - 一种通过无线网络传输的汽车影音系统 - Google Patents

一种通过无线网络传输的汽车影音系统 Download PDF

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Publication number
WO2024037454A1
WO2024037454A1 PCT/CN2023/112585 CN2023112585W WO2024037454A1 WO 2024037454 A1 WO2024037454 A1 WO 2024037454A1 CN 2023112585 W CN2023112585 W CN 2023112585W WO 2024037454 A1 WO2024037454 A1 WO 2024037454A1
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WO
WIPO (PCT)
Prior art keywords
audio
controller
sub
wireless network
video
Prior art date
Application number
PCT/CN2023/112585
Other languages
English (en)
French (fr)
Inventor
王超
Original Assignee
长春捷翼汽车科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication of WO2024037454A1 publication Critical patent/WO2024037454A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
    • B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0841—Registering performance data
    • G07C5/085—Registering performance data using electronic data carriers
    • G07C5/0866—Registering performance data using electronic data carriers the electronic data carrier being a digital video recorder in combination with video camera
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03—Protecting confidentiality, e.g. by encryption
    • 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]

Definitions

  • the present invention relates to the technical field of automotive electrical appliances, and more specifically, to a car audio and video system transmitted through a wireless network.
  • the current audio and video modules still rely on cameras and microphones to collect images and sounds. They need to use high-speed data transmission cables from the audio and video modules at various locations on the car body to the controller on the instrument panel, and then the controller is connected to the display system. This results in a large number of high-speed data transmission cables on the vehicle body, which takes up greater weight and cost.
  • the controller processes the audio and video information transmitted by multiple audio and video modules at the same time, and the controller may not process the audio and video information in a timely manner. Heat and other phenomena are not conducive to the popularization of autonomous driving functions.
  • the automotive electrical technology field is in urgent need of a car audio and video system that can save the use of high-speed data transmission cables, reduce the weight of the car body, reduce the cost of the car, and at the same time process audio and video information more quickly.
  • the purpose of the present invention is to provide a new technical solution for a wireless transmission car audio and video system, which uses multiple sub-controllers to connect the audio and video recording module, preprocesses the audio and video information collected by the audio and video recording module, and then transmits it to the wireless network through the wireless network.
  • the main controller reduces the amount of data processed by the main controller and improves the response speed. It also saves a large number of high-speed data transmission cables, reduces costs and reduces the weight of the vehicle body.
  • a car audio and video system transmitted through a wireless network which includes a main control device installed on the vehicle body. controller, as well as at least one audio and video recording module installed on the vehicle body and a sub-controller connected to the audio and video recording module.
  • the main controller performs data and signal transmission with the sub-controller through a wireless network.
  • the audio and video recording module includes at least one of a driving recording unit, a front side image unit, a reversing image unit, a left rear view image unit, a right rear view image unit and a roof automatic driving image unit.
  • the main controller includes a wireless transmitting unit
  • the sub-controller includes a wireless receiving unit
  • the output end of the main controller is connected to the wireless transmitting unit and sends control signals through the wireless network
  • the sub-controller includes a wireless receiving unit.
  • the input end of the controller is connected to the wireless receiving unit and receives the control signal.
  • the main controller includes a wireless receiving unit
  • the sub-controller includes a wireless transmitting unit
  • the output end of the sub-controller is connected to the wireless transmitting unit and sends audio and video information through the wireless network
  • the main controller includes a wireless transmitting unit.
  • the input end of the controller is connected to the wireless receiving unit and receives the audio and video information.
  • the wireless transmitting unit further includes an encryption module.
  • the output ends of the main controller and the sub-controller are connected to the wireless transmitting unit through the encryption module.
  • the encryption module converts the control signal into Or the audio and video information is encrypted;
  • the wireless receiving unit includes a decryption module, the input ends of the main controller and the sub-controller are connected to the wireless receiving unit through the decryption module, and the decryption module will receive The control signal or the audio and video information is decrypted.
  • a mobile control terminal is also included, the mobile control terminal is connected to the sub-controller through a wireless network, and the sub-controller feeds back the audio and video information to the mobile control terminal through the wireless network.
  • the sub-controller shall be subject to the control signal of the main controller.
  • the sub-controller includes a central processing unit and a storage unit that are electrically connected to each other.
  • the central processing unit is electrically connected to the video and audio recording module through the second connection harness, and records the video and audio.
  • the audio and video information of the module is stored in the storage unit.
  • the sub-controller includes an encoding module, the encoding module is electrically connected to the audio and video recording module through the second connection harness, and the encoding module converts the audio and video information of the audio and video recording module into Encoding, and sent to the main controller through the wireless network of the sub-controller; the main controller includes a decoding module, the decoding module decodes the audio and video information, and the main controller passes the third A connection harness is passed to the display system.
  • a first steering mechanism is provided on the vehicle body, and the audio and video recording module is fixed on the first steering mechanism.
  • the first steering mechanism is provided with a first motor, which can drive the audio and video recording module to rotate. .
  • the audio and video recording module is fixed on a first steering mechanism, and the first steering mechanism is configured with a first electric
  • the machine can drive the audio and video recording module to rotate;
  • the body is provided with a second steering mechanism, the first steering mechanism is fixed on the second steering mechanism, and the second steering mechanism is provided with a second motor that can drive all The first steering mechanism rotates.
  • the first motor and the second motor are connected to the sub-controller through the second connection harness, and the sub-controller receives the control signal from the main controller through a wireless network, Control the first motor and/or the second motor to rotate.
  • a battery is also included, the battery is detachably installed in each audio and video recording module, the battery is electrically connected to the audio and video recording module and the sub-controller through the second connection harness, and Provide electrical energy to the video and audio recording module and the sub-controller.
  • the battery is also provided with a power monitoring device, which can monitor the remaining power of the battery.
  • the power monitoring device communicates with the battery and the sub-controller circuit through the second connection harness. connection, and feed back the remaining power information of the battery to the sub-controller.
  • the battery is further provided with a power display device, which is electrically connected to the sub-controller and capable of displaying the remaining power of the battery through a display interface.
  • a power display device which is electrically connected to the sub-controller and capable of displaying the remaining power of the battery through a display interface.
  • the battery is also equipped with a power alarm device.
  • the power alarm device is electrically connected to the sub-controller.
  • the sub-controller sets an alarm value for the remaining power of the battery. When the remaining power of the battery is low, When the alarm value is reached, the sub-controller sends an alarm message through the power display device, and/or the sub-controller feeds back the alarm signal to the main controller through the wireless network, and the main controller The device sends an alarm message through the display system.
  • a battery charging device is also provided in the vehicle body, and the battery is placed in the battery charging device and charged.
  • a wireless power receiving coil is provided on the battery, and the wireless power receiving coil is connected to an electrode of the battery.
  • the batteries in each of the audio and video recording modules are all the same.
  • a display system connected to the main controller is also included, and the main controller transmits the audio and video information to the display system.
  • the signal is processed to make the control signal unique and avoid the inconsistency of different cars.
  • Control signals are transmitted wirelessly, causing misoperation of other vehicles.
  • the audio and video information collected by the audio and video recording module can be directly observed on mobile phones, tablets and other devices. Even if the car is turned off, the external and internal conditions of the car can be monitored.
  • the central processing unit and storage unit are set up in the sub-controller, which can pre-process the audio and video information in advance and transfer the pre-processed audio and video information to the main controller, which reduces the amount of data transmitted and also eases the main control
  • the workload of the processor Setting up a storage unit can record and save the surrounding environment of the car in real time, so that the required environmental data can be retrieved when needed.
  • the sub-controller is equipped with an encoding module, and the main controller is equipped with a decoding module, which can process and restore audio and video information accordingly, reduce the amount of data transmitted wirelessly, and speed up the transmission speed.
  • the audio and video recording module is equipped with a steering mechanism, which can rotate the direction of the camera according to the requirements, and can capture the images the driver wants. It can also avoid recording dead spots and reduce the number of audio and video recording modules.
  • Figure 1 is a structural block diagram of the car audio and video system of the present invention
  • Figure 2 is another structural block diagram of the car audio and video system of the present invention.
  • Figure 3 is another structural block diagram of the car audio and video system of the present invention.
  • Figure 4 is a schematic diagram of the position and structure of the audio and video recording module of the car audio and video system of the present invention
  • Figure 5 is a schematic structural diagram of the first steering mechanism and the second steering mechanism of the car audio and video system of the present invention.
  • FIG. 6 is a schematic structural diagram of the battery-related device of the car audio and video system of the present invention.
  • FIG. 7 is a schematic structural diagram of the wireless rechargeable battery of the car audio and video system of the present invention.
  • the first steering mechanism 611.
  • the first motor 612.
  • Wireless transmitting unit 72.
  • Wireless receiving unit 72.
  • Encryption module 81. Encryption module; 82. Decryption module;
  • any specific values are to be construed as illustrative only and not as limiting. Accordingly, other examples of the exemplary embodiments may have different values.
  • the present invention provides a car audio and video system transmitted through a wireless network. As shown in Figure 1, it includes a main controller 1 arranged in the vehicle body, and at least one audio and video recording module 50 arranged in the vehicle body and connected to the audio and video recording module 50.
  • the main controller 1 and the sub-controller 2 connected to the module 50 perform data and signal transmission with the sub-controller 2 through the wireless network.
  • the car audio and video system of the present invention receives the image and sound signals of the audio and video recording modules 50 through the sub-controller 2 connected to multiple audio and video recording modules 50, and then transmits them to the main controller 1 of the car through the wireless network.
  • the main controller 1 analyzes the image and sound signals and displays them on the car's display system 4, so that the driver can clearly understand the specific situation of the visual blind spot outside the car, so as to make correct judgment and processing.
  • the main controller 1 includes a computing unit, which may include a central processing unit (CPU), a micro control unit (MCU), a digital signal processor (DSP), a programmable logic controller (PLC), or a field programmable logic gate array (FPGA). )wait.
  • the sub-controller 2 is disposed nearby the audio and video recording module 50. The distance between the sub-controller 2 and the audio and video recording module 50 is short, and the second connection harness 32 can be used to connect, which can ensure the stability of signal transmission. In order to record images from various positions of the car, the audio and video recording module 50 is installed at various positions of the car. Therefore, using a wire harness to connect to the main controller 1 not only wastes high-speed data transmission cables, but also increases the difficulty of installation and maintenance.
  • the controller 2 uses a wireless network to connect to the main controller 1, which does not limit the number and location of the audio and video recording modules 50.
  • the controller 2 can ensure stable transmission of audio and video signals for the entire vehicle and reduce costs. , reduce the man-hours of automobile assembly and maintenance, and improve production efficiency.
  • the audio and video recording module 50 includes a driving recording unit 51, a front side image unit 52, a reversing image unit 53, a left rear view image unit 54, a right rear view At least one of the imaging unit 55 and the roof-mounted automatic driving imaging unit 56.
  • the driving recording unit 51 is an instrument that records relevant information such as images and sounds while the vehicle is driving. After the driving recording unit 51 is installed, the video images and sounds of the entire driving process of the car can be recorded, which can provide evidence for traffic accidents.
  • the driving recording unit 51 is generally installed above the cab. In some embodiments, the driving recording unit 51 and the rearview mirror of the car are installed together.
  • the front side imaging unit 52 is generally installed above or below the license plate holder at the front end of the car. It can also be installed in the front air inlet and outlet grille.
  • the front side imaging unit 52 records the image of the front of the car, mainly for the driver's observation. Use it when distance from the vehicle in front and when parking forward.
  • the reversing image unit 53 is generally installed above or below the license plate holder at the rear end of the car to record images of the rear of the car. It is mainly used by the driver to observe the situation behind the car and to reverse the car into parking space.
  • the left rearview image unit 54 is generally installed in the left rearview mirror and can record the vehicle conditions at the left rear of the car. When used in conjunction with the left rearview mirror, it can provide clearer instructions to the driver during reversing and lane changing. .
  • the right rearview image unit 55 is generally installed in the right rearview mirror and can record the vehicle conditions at the right rear of the car. When used in conjunction with the right rearview mirror, it can provide clearer instructions to the driver during reversing and lane changing. .
  • the roof-mounted automatic driving imaging unit 56 is generally installed above the car roof. Since other imaging units are located lower, they are likely to be blocked by obstacles in complex road conditions and cannot provide accurate information.
  • the roof-mounted automatic driving imaging unit 56 The high-position wide-angle camera 501 combined with multiple directions can provide timely and accurate image information of the car in all directions. Combined with on-board radar and lidar, it can better track vehicles and pedestrians and improve the usability and safety of autonomous driving.
  • the imaging units at various positions on the car are used together, and the provided audio and video information is summarized in the main controller 1 and combined through software, which can provide drivers with comprehensive and even three-dimensional audio and video information about the car and the outside world, allowing drivers to operate in complex situations. It can make timely and accurate judgments and responses in changing environments, while also providing an effective source of information for autonomous driving, making the driving process easier and safer.
  • the main controller 1 includes a wireless transmitting unit 71
  • the sub-controller 2 includes a wireless receiving unit 72
  • the output end of the main controller 1 is connected to the wireless transmitting unit 71 and communicates through a wireless network.
  • the input end of the sub-controller 2 is connected to the wireless receiving unit 72 and receives the control signal.
  • the wireless transmitting unit 71 is capable of converting the control signal of the main controller 1 into a wireless transmission signal and then sending it out through a wireless transmitting antenna.
  • F05R is a small-sized, low-voltage, micro-power wireless transmitting module. Using SMT technology, the sound surface frequency is stable and the performance is stable.
  • the wireless receiving unit 72 is generally divided into two types: super regenerative and superheterodyne receiving modules. According to whether there is codec, it can also be divided into a wireless receiving head (without decoding, outputting pulse signals) and a wireless receiving board (with decoding chip, Output TTL level signal).
  • the control signal of the main controller 1 is sent by the wireless transmitting unit 71 and then received by the wireless receiving unit 72, and converted into a control signal and transmitted to the sub-controller 2, and the sub-controller 2 controls the corresponding audio and video recording module 50 Take control.
  • the main controller 1 includes a wireless receiving unit 72
  • the sub-controller 2 includes a wireless transmitting unit 71
  • the output end of the sub-controller 2 is connected to the wireless transmitting unit 71 and communicates through a wireless network.
  • the input terminal of the main controller 1 is connected to the wireless receiving unit 72 and receives the audio and video information.
  • the audio and video recording module 50 needs to feed back the audio and video information to the main controller 1 and display it on the display system 4.
  • the sub-controller 2 needs to be equipped with a wireless transmitting unit 71.
  • the sub-controller 2 can transmit the audio and video information of the audio and video recording module 50.
  • the information is transferred to the wireless transmitting unit 71, and then the wireless transmitting unit 71 sends it out through the wireless transmitting antenna.
  • the main controller 1 is equipped with a wireless receiving unit 72.
  • the wireless receiving unit 72 of the main controller 1 After the wireless receiving unit 72 of the main controller 1 receives the signal sent by the wireless network, it converts it into the audio and video information of the audio and video recording module 50, and transmits it to the display system 4 of the car, so that the driver can Personnel can understand the car and external audio and video information at any time, and can make corresponding feedback in a timely manner.
  • the wireless transmitting unit 71 also includes an encryption module 81.
  • the output ends of the main controller 1 and the sub-controller 2 are connected to the wireless transmitting unit 71 through the encryption module 81.
  • the encryption module 81 The control signal or audio and video information is encrypted;
  • the wireless receiving unit 72 includes a decryption module 82.
  • the input terminals of the main controller 1 and the sub-controller 2 are connected to the wireless receiving unit 72 through the decryption module 82.
  • the decryption module 82 converts the received control signal or audio and video information. Information decryption.
  • the encryption module 81 uses the internal encoder to re-encode the control signal or audio and video information according to certain rules, that is, the key, and then sends the encoded information through wireless transmission, so that even if other vehicles receive the wireless information , since there is no corresponding key, the corresponding information cannot be identified.
  • the key will also have its own identification code. If the identification code of other vehicles receiving information is inconsistent with its own identification code, it will not identify the corresponding information. . Only the information receiving device corresponding to the identification code, that is, the corresponding decryption module 82, will decrypt the information using the corresponding rules and pass the decrypted information to the corresponding main controller 1 or sub-controller 2.
  • a mobile control terminal 10 is also included.
  • the mobile control terminal 10 is connected to the sub-controller 2 through a wireless network, and the sub-controller 2 feeds back the audio and video information to the mobile control terminal 10 through the wireless network.
  • the mobile control terminal 10 includes a mobile phone, a tablet or a mobile laptop, etc.
  • the mobile control terminal 10 can be connected to the wireless network of the car through wifi, Bluetooth, 4G network or 5G network, and communicate with the wireless transmitting unit 71 of the sub-controller 2 and the wireless network.
  • the receiving unit 72 is wirelessly connected and can receive the audio and video information sent by the sub-controller 2.
  • the mobile control terminal 10 can also transmit control signals to each audio and video recording module 50 through the installed software to control some functions, so that the driver can operate each audio and video recording module 50 without entering the car.
  • the sub-controller 2 takes the control signal of the main controller 1 as the standard.
  • the mobile control terminal 10 and the main controller 1 send control signals at the same time, it also means that someone is operating in the cab of the car.
  • the sub-controller 2 of the car will take the control signal sent by the main controller 1 as the standard to avoid the problem of mobile control. Misoperation of the terminal 10 may cause the car to behave unexpectedly.
  • the sub-controller 2 includes a central processing unit 21 and a storage unit 22 that are electrically connected to each other.
  • the central processing unit 21 is electrically connected to the audio and video recording module 50 through the second connection harness 32.
  • the audio and video information of the audio and video recording module 50 is stored in the storage unit 22 .
  • the controller processes the audio and video information transmitted by multiple audio and video modules at the same time, which may lead to delays in processing, heating of the controller, etc. This phenomenon is not conducive to the popularization of autonomous driving functions.
  • the sub-controller 2 includes a central processing unit 21, which can be a central processing unit (CPU), a micro control unit (MCU), a digital signal processor (DSP), a programmable logic controller (PLC), a field programmable logic gate array ( FPGA) etc.
  • the audio and video information of each audio and video recording module 50 can be pre-processed and then transmitted to the main controller 1 through the wireless network, which reduces the amount of data processed by the main controller 1, improves the response speed, and also saves a large number of high-speed data transmission lines. Cables, reduce costs and reduce body weight.
  • the sub-controller 2 is provided with a storage unit 22, which can record and save the surrounding environment of the car in real time, so that the required environmental data can be retrieved when needed. For example, when a traffic accident occurs, the video images and sounds of the entire driving process of the car recorded by the storage unit 22 can be retrieved to provide evidence for the traffic accident.
  • the sub-controller 2 includes an encoding module 23 .
  • the encoding module 23 is electrically connected to the video and audio recording module 50 through the second connection harness 32 .
  • the encoding module 23 connects the video and audio recording module 50 to
  • the audio and video information is encoded and sent to the main controller 1 through the wireless network of the sub-controller 2; the main controller 1 includes a decoding module 11, and the decoding module 11 decodes the audio and video information.
  • the camera 501 of the audio and video recording module 50 also has higher and higher pixels. At present, the cameras 501 of most vehicles have reached 8 million pixels. The clarity of image information can meet the requirements, but the transmission of data is more difficult. If it is 100M optical fiber, the theoretical maximum transmission speed is 12.5MB/s, and 800 The capacity of one frame of megapixel audio and video information can reach about 8MB. If the audio and video information is transmitted completely losslessly, both the transmission system and the central processing unit 21 of the sub-controller 2 and the main controller 1 will be A huge challenge.
  • the audio and video information transmitted by the audio and video recording module 50 will be encoded in the encoding module 23 of the sub-controller 2 to compress the video files to reduce the size of the transmitted information and enable the audio and video information to be transmitted through the wireless network.
  • a decoding module 11 is provided in the main controller 1, which can decode the encoded audio and video information and convert it into audio and video information that can be displayed by the display system 4.
  • a first steering mechanism 61 is provided on the vehicle body.
  • the audio and video recording module 50 is fixed on the first steering mechanism 61 .
  • the first steering mechanism 61 is provided with a first motor 611 that can drive the audio and video recording.
  • the camera module 50 rotates.
  • the audio and video recording module 50 on a car is fixed on the car body and cannot move or rotate.
  • the recorded images are also from a fixed angle. Even with a wide-angle lens, there will be blind spots in the recording, which will lead to incomplete information about the surrounding environment of some vehicles, and the driver cannot make a relatively accurate judgment.
  • the driving recording unit 51 can only record the image information in front of the vehicle. When it is necessary to observe the situation inside the car, the driving recording unit 51 cannot record. Installing other recording units will increase the cost. On the driving recording unit 51 Adding the first steering mechanism 61 enables the driving recording unit 51 to record images from various angles inside or outside the car.
  • the first steering mechanism 61 is provided with a rotating shaft fixedly connected to the audio and video recording module 50.
  • One end of the rotating shaft is directly connected to the first motor 611, or connected to the first motor 611 through a rotating mechanism, such as a gear mechanism.
  • a rotating mechanism such as a gear mechanism.
  • the first motor 611 is connected to the sub-controller 2 through the second connection harness 32.
  • the sub-controller 2 obtains control signals from the main controller 1 through the wireless network and controls the rotation angle and speed of the first motor 611.
  • the first steering mechanism 61 can drive the video and audio recording module 50 to rotate in a plane, such as horizontal panning or vertical panning.
  • the audio and video recording module 50 is fixed on the first steering mechanism 61.
  • the first steering mechanism 61 is provided with a first motor 611, which can drive the audio and video recording module 50 to rotate;
  • the second steering mechanism 62 has the first steering mechanism 61 fixed on the second steering mechanism 62.
  • the second steering mechanism 62 is provided with a second motor 621 that can drive the first steering mechanism 61 to rotate.
  • the second steering mechanism 62 is provided with a rotating shaft connected to the first steering mechanism 61.
  • One end of the rotating shaft is directly connected to the second motor 621, or connected to the second motor 621 through a rotating mechanism, such as a gear mechanism.
  • a rotating mechanism such as a gear mechanism.
  • the second motor 621 is connected to the sub-controller 2 through the second connection harness 32.
  • the sub-controller 2 obtains control signals from the main controller 1 through the wireless network and controls the rotation angle and speed of the second motor 621.
  • the first steering mechanism 61 can drive the video and audio recording module 50 to rotate in a plane, such as horizontal panning or vertical panning.
  • the second steering mechanism 62 can drive the first steering mechanism 61 to rotate in a plane.
  • the audio and video recording module 50 can rotate to any angle. By limiting the rotation to one plane, the driver can obtain more image information inside or outside the car.
  • the first motor 61 and the second motor 62 are connected to the sub-controller 2 through the second connection harness 32.
  • the sub-controller 2 receives the control signal from the main controller 1 through the wireless network and controls the first motor 611. and/or the second motor 621 rotates.
  • the driver issues control information to the rotation of the video and audio recording module 50 through the display system 4.
  • the sub-controller 2 transmits the control information to the first motor 611 and/or the second motor 621 through the second connection harness 32, so that the first motor 611 and/or the second motor 621 Rotate to the specified angle and position according to the control information to obtain the corresponding audio and video information and transmit it to the display system 4 through the wireless network.
  • a battery 9 is also included.
  • the battery 9 is detachably installed in each audio and video recording module 50.
  • the battery 9 is connected to the audio and video recording module 50 and sub-controller through the second connection harness 32.
  • the controller 2 is electrically connected and provides power to the audio and video recording module 50 and the sub-controller 2.
  • the audio and video recording module 50 is installed in many positions of the car body.
  • the audio and video recording module 50 requires electric energy to drive. If it is powered by a car generator or a battery, a lot of power cords need to be connected, resulting in a long installation time. Therefore, the battery 9 is installed nearby in the audio and video recording module 50 and is detachably installed in the audio and video recording module 50 to facilitate the replacement of the battery 9 .
  • the battery 9 is located together with the audio and video recording module 50 and the sub-controller 2, and is connected through a second connection harness 32 to provide power.
  • the audio and video recording module 50 on the car may still need to work after the car is turned off.
  • the driving recording unit 51 not only records the road status during driving, but also records image information after parking to avoid accidents when the vehicle is parked. Other people damage or steal the vehicle, so it is necessary to set a separate battery 9 in the driving recording unit 51 so that after the car is turned off, it can also record the status inside or outside the car and send it through the wireless network. to the driver's mobile control terminal 10.
  • the battery 9 is also provided with a power monitoring device.
  • the power monitoring device can monitor the remaining power of the battery 9.
  • the power monitoring device is electrically connected to the battery 9 and the sub-controller 2 through the second connection harness 32. connection, and feed back the remaining power information of the battery 9 to the sub-controller 2.
  • the battery 9 can be a dry battery or a rechargeable battery, and the rechargeable battery can be a lead-acid battery, a nickel-cadmium battery, a nickel-metal hydride battery, a lithium-ion battery, etc.
  • a rechargeable battery is used in the present invention.
  • the power monitoring device is connected to the electrodes of the battery 9.
  • the internal detection device can detect the voltage and current status of the battery 9, calculate the remaining power of the battery 9 through a pre-stored calculation method, and connect the battery to the battery through the second connection harness 32. 9’s remaining power information is fed back to sub-controller 2.
  • the sub-controller 2 transmits the remaining power information of the battery 9 to the main controller 1 through the wireless network, and the main controller 1 displays it on the display system 4, so that the driver can real-time monitor the information of each audio and video recording module 50.
  • the battery 9 is also provided with a power display device 93.
  • the power display device 93 is electrically connected to the sub-controller 2 and can display the remaining power of the battery 9 through the display interface. Remaining power information of battery 9 The information can be viewed in the display system 4, or a power display device 93 can be provided on the battery 9.
  • the power display device 93 can be a liquid crystal screen or a digital tube, and can directly display the remaining power information of the battery 9 transmitted by the sub-controller 2. out, so that the driver can also check the remaining power information of the battery 9 when observing each audio and video recording module 50 .
  • the battery 9 is also provided with a power alarm device 94.
  • the power alarm device 94 is electrically connected to the sub-controller 2.
  • the sub-controller 2 sets an alarm value for the remaining power of the battery 9. When the battery 9 When the remaining power is lower than the alarm value, the sub-controller 2 sends an alarm message through the power display device 93, and/or the sub-controller 2 feeds back the alarm signal to the main controller 1 through the wireless network.
  • Both the display system 4 and the power display device 93 only display the current remaining power information of the battery 9. If the driver does not notice that the remaining power information of the battery 9 is lower than the threshold, the audio and video recording module 50 may be damaged.
  • the battery 9 is also equipped with a power alarm device 94.
  • the power alarm device 94 is connected to the sub-controller 2 through the second connection harness 32, and sets a threshold value for the remaining power information of the battery 9 in the sub-controller 2, that is, an alarm value. If the remaining power of the battery 9 is lower than the alarm value, the driver needs to be reminded to charge the battery 9 in time or replace the battery 9 with electricity.
  • the information that the power alarm device 94 issues an alarm includes, but is not limited to, highlighting or flashing of part of the display content, whistle or voice prompts, etc.
  • a battery charging device (not shown in the figure) is also provided in the vehicle body, and the battery 9 is placed in the battery charging device and charged.
  • a battery charging device can be set up in the trunk of the car or other locations.
  • the battery 9 placed in the battery charging device can be charged through a generator.
  • the spare battery that has been charged in the battery charging device can be charged in time. The battery 9 can be taken out and replaced without delaying the use of the video and audio recording module 50 .
  • a wireless power receiving coil 91 is provided on the battery 9 , and the wireless power receiving coil 91 is connected to the electrode of the battery 9 .
  • the wireless power receiving coil 91 can be disposed on the side of the battery 9 and connected to the electrodes of the battery 9 for wireless charging of the battery 9 .
  • the wireless power receiving coil 91 can wirelessly charge the battery 9 based on wireless charging methods such as electromagnetic induction coupling or magnetic resonance coupling.
  • Electromagnetic induction coupling means that when the wireless charging coil 911 is close to the wireless power receiving coil 91, the energy signal emitted by the wireless charging coil 911 is coupled to the wireless power receiving coil 91 in an electromagnetic induction manner and is provided to the battery.
  • Magnetic resonance coupling means that the wireless charging coil 911 is provided with a power transmitting side resonant capacitor in series with the wireless charging coil 911 , thereby forming a power transmitting side LC resonant circuit; the wireless power receiving coil 91 is provided with a power transmitting side resonant capacitor in series with the wireless power receiving coil 91 The power receiving side resonant capacitor forms a power receiving side LC resonant circuit; and the power transmitting side LC resonant circuit and the power receiving side LC resonant circuit have the same resonant frequency.
  • the power transmitting side LC resonant circuit When the wireless charging coil 911 is powered on, the power transmitting side LC resonant circuit will Generate a high-frequency vibrating magnetic field; the magnetic field and the electric field at any position at any time in this high-frequency vibrating magnetic field are orthogonal, and the phase difference is 1/2 ⁇ , and the magnetic field intensity is much higher than the electric field intensity.
  • This space The electromagnetic field can store energy, but the resulting electromagnetic wave power flow density is zero and does not transmit any energy, which means that this field will not radiate outwards or be lost inward.
  • the wireless charging coil 911 When the wireless charging coil 911 is close to the wireless power receiving coil 91, the wireless power receiving coil 91 will fall into the range of the high-frequency vibration magnetic field.
  • the power receiving side LC resonant circuit Since the power receiving side LC resonant circuit has the same resonant frequency as the power transmitting side LC resonant circuit, the power receiving side The side LC resonant circuit will generate resonance of the same frequency magnetic field, so that energy is coupled from the wireless charging coil 911 to the wireless power receiving coil 91 in the form of magnetic resonance, and is provided to the battery 9 .
  • the batteries 9 in each video and audio recording module 50 are all the same. In order to make the batteries 9 in each audio and video recording module 50 interchangeable, all batteries 9 can be set to the same specifications and models. All batteries 9 can be charged in the battery charging device. When a certain audio and video recording module 50 is used, When the remaining power of the battery 9 in the recording module 50 is lower than the alarm value, you can directly replace the charged battery 9 without checking the size and model of the battery 9 .
  • the main controller 1 also includes a display system 4 connected to the main controller, and the main controller 1 transmits audio and video information to the display system 4 .
  • the main controller 1 does not simply feed back the audio and video information directly to the display system 4, but also adds information including but not limited to the reversing auxiliary line, person identification frame, car driving status and other information to the displayed image.
  • the display system 4 is not simply a display of audio and video information. It can also include but is not limited to a touch screen and a voice input and output interface.
  • the main controller 1 can receive the driver's instructions through the display system 4 and convert them into control signals. Through the wireless network, it is sent to the sub-controller 2 located near the audio and video recording module 50 .
  • Wireless networks can be based on wireless communication technologies such as Bluetooth, wifi, ZigBee, Internet of Things (IOT), infrared, and Wireless Home Digital Interface (WDHI).

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Abstract

本发明公开了一种通过无线网络传输的汽车影音系统，包括设置在车身内的主控制器，以及设置在车身的至少一个影音摄录模块和与影音摄录模块连接的分控制器,主控制器通过无线网络与分控制器进行数据与信号传输。本发明采用多个与分控制器连接的影音摄录模块，将影音摄录模块采集的影音信息做预处理，再通过无线网络传输给主控制器，降低主控制器的处理数据量，提高反应速度，同时也节省了大量的高速数据传输线缆，降低成本、减轻车身重量。

Description

一种通过无线网络传输的汽车影音系统
相关申请
本申请要求于2022年08月13日递交的申请号为202210970725.8的中国发明专利申请的优先权，并引用上述专利申请公开的全部内容作为本申请的一部分。
技术领域
本发明涉及汽车电器技术领域，更具体地，涉及一种通过无线网络传输的汽车影音系统。
背景技术
随着汽车的保有量越来越多，道路上的汽车也随之增多，驾驶人员的行驶环境复杂多变，以前只依靠各种镜子以及驾驶人员的目视，已经不能满足对行驶中突发事件的反应速度，因此，现有汽车增加很多影音模块，来辅助驾驶人员对车外部环境的观察，甚至能够代替驾驶人员做出及时的反应，处理突发情况。
目前的影音模块还是依靠摄像装置及麦克风收集影像和声音，需要通过高速数据传输线缆，从车身各个位置的影音模块，传递到仪表盘的控制器中，再由控制器连接到显示系统上。使得车身上高速数据传输线缆数量较多，占据较大的重量和成本。
另外，随着自动驾驶的功能越来越完善，对影音模块的影音信息及时处理的要求也越来越高，控制器同时处理多个影音模块传送的影音信息，会出现处理不及时，控制器发热等现象，不利于自动驾驶功能的普及。
因此，汽车电器技术领域急需一种可以节省高速数据传输线缆的使用，减轻车身重量，降低汽车成本，同时能够更快速的对影音信息进行处理的汽车影音系统。
发明内容
本发明的目的是提供一种无线传输的汽车影音系统的新技术方案，采用多个分控制器连接影音摄录模块，将影音摄录模块采集的影音信息做预处理，再通过无线网络传输给主控制器，降低主控制器的处理数据量，提高反应速度，同时也节省了大量的高速数据传输线缆，降低成本、减轻车身重量。
根据本发明提供了一种通过无线网络传输的汽车影音系统，包括设置在车身的主控 制器，以及设置在车身的至少一个影音摄录模块和与所述影音摄录模块连接的分控制器，所述主控制器通过无线网络与所述分控制器进行数据与信号传输。
可选地，所述影音摄录模块包括行车记录单元、前侧影像单元、倒车影像单元、左侧后视影像单元、右侧后视影像单元和车顶自动驾驶影像单元中的至少一种。
可选地，所述主控制器包括无线发射单元，所述分控制器包括无线接收单元，所述主控制器的输出端与所述无线发射单元连接并通过无线网络发送控制信号，所述分控制器的输入端与所述无线接收单元连接并接收所述控制信号。
可选地，所述主控制器包括无线接收单元，所述分控制器包括无线发射单元，所述分控制器的输出端与所述无线发射单元连接并通过无线网络发送影音信息，所述主控制器的输入端与所述无线接收单元连接并接收所述影音信息。
可选地，所述无线发射单元还包括加密模块，所述主控制器和所述分控制器的输出端通过所述加密模块与所述无线发射单元连接，所述加密模块将所述控制信号或所述影音信息加密；所述无线接收单元包括解密模块，所述主控制器和所述分控制器的输入端通过所述解密模块与所述无线接收单元连接，所述解密模块将接收到的所述控制信号或所述影音信息解密。
可选地，还包括移动控制终端，所述移动控制终端通过无线网络连接所述分控制器，所述分控制器通过无线网络将所述影音信息反馈给所述移动控制终端。
可选地，当所述移动控制终端和所述主控制器同时发送控制信号时，所述分控制器以所述主控制器的控制信号为准。
可选地，所述分控制器包括相互电连接的中央处理单元和存储单元，所述中央处理单元通过所述第二连接线束与所述影音摄录模块电连接，并将所述影音摄录模块的所述影音信息存储到所述存储单元中。
可选地，所述分控制器包括编码模块，所述编码模块通过所述第二连接线束与所述影音摄录模块电连接，所述编码模块将所述影音摄录模块的所述影音信息编码，并通过所述分控制器的无线网络发送所述主控制器；所述主控制器包括解码模块，所述解码模块将所述影音信息解码，并由所述主控制器通过所述第一连接线束传递到所述显示系统上。
可选地，所述车身上设置第一转向机构，所述影音摄录模块固定在所述第一转向机构上，所述第一转向机构设置第一电机，能够带动所述影音摄录模块转动。
可选地，所述影音摄录模块固定在第一转向机构上，所述第一转向机构设置第一电 机，能够带动所述影音摄录模块转动；所述车身上设置第二转向机构，所述第一转向机构固定在第二转向机构上，所述第二转向机构设置第二电机，能够带动所述第一转向机构转动。
可选地，所述第一电机和所述第二电机通过所述第二连接线束与所述分控制器连接，所述分控制器通过无线网络接收所述主控制器的所述控制信号，控制所述第一电机和/或所述第二电机转动。
可选地，还包括电池，所述电池可拆卸的安装在各个影音摄录模块内，所述电池通过所述第二连接线束与所述影音摄录模块和所述分控制器电连接，并给所述影音摄录模块和所述分控制器提供电能。
可选地，所述电池还设置电量监控装置，所述电量监控装置能够监控所述电池的剩余电量，所述电量监控装置通过所述第二连接线束与所述电池和所述分控制器电连接，并将所述电池的剩余电量信息反馈给所述分控制器。
可选地，所述电池还设置电量显示装置，所述电量显示装置与所述分控制器电连接，能够通过显示界面显示所述电池的剩余电量。
可选地，所述电池还设置电量报警装置，所述电量报警装置与所述分控制器电连接，所述分控制器设置所述电池剩余电量的报警值，当所述电池的剩余电量低于所述报警值时，所述分控制器通过所述电量显示装置发出报警信息，和/或，所述分控制器将报警信号通过无线网络反馈给所述主控制器，由所述主控制器通过所述显示系统发出报警信息。
可选地，所述车身内还设置电池充电装置，所述电池放置在所述电池充电装置内并进行充电。
可选地，所述电池上设置无线受电线圈，所述无线受电线圈与所述电池的电极连接。
可选地，各个所述影音摄录模块内的所述电池全部相同。
可选地，还包括与所述主控制器连接的显示系统，所述主控制器将所述影音信息传递到所述显示系统上。
本发明的特点及优点是：
1、采用多个分控制器连接影音摄录模块，将影音摄录模块采集的影音信息做预处理，再通过无线网络传输给主控制器，降低主控制器的处理数据量，提高反应速度，同时也节省了大量的高速数据传输线缆，降低成本、减轻车身重量。
2、通过加密模块和解密模块对信号的处理，使控制信号有唯一性，避免不同汽车的 控制信号无线传输，造成对其他车辆的误操作。
3、通过移动控制终端与分控制器的连接，可以直接在手机、平板等设备上观察到影音摄录模块采集的影音信息，即使汽车熄火，也能对汽车外部和内部的情况进行监控。
4、分控制器中设置了中央处理单元和存储单元，能够预先对影音信息进行预处理，并将预处理后的影音信息传递给主控制器，降低了传输的数据量，也减轻了主控制器的工作量。设置存储单元，可以对汽车周边环境进行及时摄录和保存，以便于需要时能够调取需要的环境数据。
5、分控制器中设置了编码模块，主控制器设置了解码模块，能够对应的对影音信息进行处理和还原，降低无线传输的数据量，加快传输速度。
6、影音摄录模块设置转向机构，能够依据要求转动摄像头的方向，能够摄录到驾驶人员想要的画面，同时也能避免摄录死角，减少影音摄录模块的设置数量。
7、在影音摄录模块就近设置单独的电池，减少供电线束的数量和长度。同时具备无线充电和太阳能充电功能，可以采用多种方式对电池充电，避免由于电池的电量低造成汽车影音系统无法正常运行。
通过以下参照附图对本发明的示例性实施例的详细描述，本发明的其它特征及其优点将会变得清楚。
附图说明
被结合在说明书中并构成说明书的一部分的附图示出了本发明的实施例，并且连同其说明一起用于解释本发明的原理。
图1为本发明汽车影音系统的一种结构框图；
图2为本发明汽车影音系统的另一种结构框图；
图3为本发明汽车影音系统的再一种结构框图；
图4为本发明汽车影音系统的影音摄录模块位置结构示意图；
图5为本发明汽车影音系统的第一转向机构和第二转向机构的结构示意图；
图6为本发明汽车影音系统的电池相关装置的结构示意图；
图7为本发明汽车影音系统的无线充电电池的结构示意图。
图中标示如下：
1、主控制器；2、分控制器；
31、第一连接线束；32、第二连接线束；
4、显示系统；
50、影音摄录模块；501、摄像头；51、行车记录单元；52、前侧影像单元；53、倒车影像单元；54、左侧后视影像单元；55、右侧后视影像单元；56、车顶自动驾驶影像单元；
61、第一转向机构；611、第一电机；
62、第二转向机构；621、第二电机；
71、无线发射单元；72、无线接收单元
81、加密模块；82、解密模块；
9、电池；91、无线受电线圈；911、无线充电线圈；92、电量监控装置；93、电量显示装置；94、电量报警装置；
10、移动控制终端。
具体实施方式
现在将参照附图来详细描述本发明的各种示例性实施例。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本发明的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本发明及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它例子可以具有不同的值。
本发明提供一种通过无线网络传输的汽车影音系统，如图1所示，包括设置在车身内的主控制器1，以及设置在车身的至少一个影音摄录模块50和与所述影音摄录模块50连接的分控制器2，主控制器1通过无线网络与分控制器2进行数据与信号传输。
为了应对道路上的汽车增多，行驶环境复杂多变的情况，现有汽车增加很多影音模块，来辅助驾驶人员对车外部环境的观察，甚至能够代替驾驶人员做出及时的反应，处理突发情况。目前的影音模块还是依靠摄像装置及麦克风收集影像和声音，需要通过高 速数据传输线缆，从车身各个位置的影音模块，传递到仪表盘的控制器中，使得车身上高速数据传输线缆数量较多，占据较大的重量和成本。
本发明的汽车影音系统，通过与多个影音摄录模块50连接的分控制器2，接收影音摄录模块50的影像和声音信号，再通过无线网络传输到汽车的主控制器1中，由主控制器1对影像和声音信号进行分析，并显示到汽车的显示系统4上，使驾驶人员能够清楚的了解车外视觉盲区的具体情况，从而做出正确的判断和处理。
主控制器1中包括计算单元，可以包括中央处理器(CPU)、微控制单元(MCU)、数字信号处理器(DSP)、可编辑逻辑控制器(PLC)、现场可编程逻辑门阵列(FPGA)等。分控制器2就近设置在影音摄录模块50附近，分控制器2与影音摄录模块50之间距离较短，可以采用第二连接线束32连接，能够保证信号传输的稳定性。为了摄录汽车各个位置的影像，影音摄录模块50设置在汽车的各个位置，因此使用线束与主控制器1连接既浪费高速数据传输线缆，也增加了安装和维修的困难程度，分控制器2采用无线网络与主控制器1连接，可以不限制影音摄录模块50安装的数量和位置，在后续自动驾驶越来越成熟的情况下，可以保证整车影音信号的稳定传输，降低成本，减少汽车装配和维修的工时，提高生产效率。
在一种实施方式中，如图1-图4所示，影音摄录模块50包括行车记录单元51、前侧影像单元52、倒车影像单元53、左侧后视影像单元54、右侧后视影像单元55和车顶自动驾驶影像单元56中的至少一种。
行车记录单元51即记录车辆行驶途中的影像及声音等相关资讯的仪器。安装行车记录单元51后，能够记录汽车行驶全过程的视频图像和声音，可为交通事故提供证据。行车记录单元51一般安装在驾驶室的上方，在一些实施例中，行车记录单元51和汽车后视镜安装在一起。
前侧影像单元52一般安装在汽车前端的车牌架上方或车牌架下方的位置，也可以安装在前档空气进出口栅栏里，前侧影像单元52是摄录汽车前方影像，主要为驾驶人员观察与前车距离，以及前进停车入位时使用。
倒车影像单元53一般安装在汽车后端的车牌架上方或车牌架下方的位置，是摄录汽车后方的影像，主要为驾驶人员观察车后方情况，以及倒车停车入位使用。
左侧后视影像单元54一般安装在左侧后视镜中，能够摄录汽车左后方车辆情况，与左后视镜结合使用，可以为驾驶人员在倒车和变道过程中提供更明确的指示。
右侧后视影像单元55一般安装在右侧后视镜中，能够摄录汽车右后方车辆情况，与右后视镜结合使用，可以为驾驶人员在倒车和变道过程中提供更明确的指示。
车顶自动驾驶影像单元56一般安装在汽车顶棚上方，由于其他影像单元位置较低，在复杂的道路情况下，极有可能被障碍物遮挡，无法提供准确的信息，车顶自动驾驶影像单元56位置高，且结合多个方向的广角摄像头501，能够及时准确的提供汽车各个方向的影像信息，与车载雷达和激光雷达结合，能够更好追踪车辆和行人，提高自动驾驶的可用性和安全性。
汽车上各个位置的影像单元结合使用，所提供的影音信息在主控制器1中汇总，并通过软件结合，可以为驾驶人员提供全面甚至立体的汽车和外界影音信息，可以让驾驶人员在复杂多变的环境下及时准确的做出相应的判断和对应，同时也为自动驾驶提供有效的信息来源，使行驶过程更加轻松和安全。
在一种实施方式中，如图2所示，主控制器1包括无线发射单元71，分控制器2包括无线接收单元72，主控制器1的输出端与无线发射单元71连接并通过无线网络发送控制信号，分控制器2的输入端与无线接收单元72连接并接收控制信号。无线发射单元71，是指能将主控制器1的控制信号，转化为无线传输信号，再通过无线发射天线发送出去，例如F05R是一款小体积低电压、微功率无线发射模块。采用SMT工艺，声表稳频，性能稳定，特别适合电池供电的小体积无线遥控，数据传输产品使用。无线接收单元72，一般分为超再生和超外差接收模块两种类型，按照是否有编解码还可分为无线接收头(不带解码，输出脉冲信号)、无线接收板(带解码芯片，输出TTL电平信号)。主控制器1的控制信号，经过无线发射单元71发送后，再由无线接收单元72接收，并转化为控制信号传递给分控制器2，并由分控制器2对相应的影音摄录模块50进行控制。
在一种实施方式中，如图2所示，主控制器1包括无线接收单元72，分控制器2包括无线发射单元71，分控制器2的输出端与无线发射单元71连接并通过无线网络发送影音信息，主控制器1的输入端与无线接收单元72连接并接收影音信息。
影音摄录模块50需要将影音信息反馈给主控制器1并显示到显示系统4上，此时就需要分控制器2具备无线发射单元71，分控制器2可以将影音摄录模块50的影音信息传递给无线发射单元71，再由无线发射单元71通过无线发射天线发送出去。主控制器1具备无线接收单元72，主控制器1的无线接收单元72接收到无线网络发送的信号后，转化为影音摄录模块50的影音信息，并传递给汽车的显示系统4，使驾驶人员能够随时了解汽车和外界影音信息，能够及时的做出相应的反馈。
在一种实施方式中，如图2所示，无线发射单元71还包括加密模块81，主控制器1和分控制器2的输出端通过加密模块81与无线发射单元71连接，加密模块81将控制信号或影音信息加密；无线接收单元72包括解密模块82，主控制器1和分控制器2的输入端通过解密模块82与无线接收单元72连接，解密模块82将接收到的控制信号或影音信息解密。
随着车辆信息化的进展越来越大，车载网络在大部分汽车上都实现了设置和使用，不同车辆之间的信号交涉也相应的增加，为了使不同车辆之间的影音信息不会影响其他车辆，每个车辆的信号发射和接收都会有相应的加密和解密程序，同时也是为了防止黑客对车辆的入侵，使外界信号不能接入车辆的信息传递网络。加密模块81是通过内部的编码器，将控制信号或影音信息通过一定的规则重新编码，也就是密钥，然后再将编码后的信息通过无线传输发送出去，这样即使有其他车辆接收到无线信息，由于没有对应的密钥，也无法识别相应的信息，同时，密钥也会自带识别码，其他车辆如果接收信息的识别码与自身的识别码不一致，就不会对相应的信息进行识别。只有识别码对应上的信息接收装置，也就是相应的解密模块82，才会对信息使用对应的规则进行解密，并将解密后的信息传递给对应的主控制器1或分控制器2。
在一种实施方式中，如图2所示，还包括移动控制终端10，移动控制终端10通过无线网络连接分控制器2，分控制器2通过无线网络将影音信息反馈给移动控制终端10。移动控制终端10包括手机、平板或移动笔记本电脑等，移动控制终端10能够通过wifi、蓝牙、4G网络或者5G网络连接到汽车的无线网络中，并与分控制器2的无线发射单元71和无线接收单元72无线连接，能够接收到分控制器2发送的影音信息，即使驾驶人员没有在车内，也可以通过移动控制终端10，观察到车内或车外的情况，从而及时处理一些异常情况。例如当不得不把小孩放置在车内时，可以通过车内的行车记录单元51观察小孩的实时状况，甚至可以通话交流。又例如在家内接收到汽车异常报警，可以在手机上查看各个影音摄录模块50传递的影音信息，判断是否为误报或者具体为何种情况。移动控制终端10也可以通过安装的软件给各个影音摄录模块50传递控制信号，控制部分功能，使驾驶人员不用到车内就能实现对各个影音摄录模块50的操作。
在一种实施方式中，当移动控制终端10和主控制器1同时发送控制信号时，分控制器2以主控制器1的控制信号为准。当移动控制终端10和主控制器1同时发送控制信号时，也代表车内驾驶室中有人在操作，汽车的分控制器2则以主控制器1发送的控制信号为准，避免由于移动控制终端10的误操作，造成汽车非预期的动作。
在一种实施方式中，如图2所示，分控制器2包括相互电连接的中央处理单元21和存储单元22，中央处理单元21通过第二连接线束32与影音摄录模块50电连接，并将影音摄录模块50的影音信息存储到存储单元22中。
随着自动驾驶的功能越来越完善，对影音模块的影音信息及时处理的要求也越来越高，控制器同时处理多个影音模块传送的影音信息，会出现处理不及时，控制器发热等现象，不利于自动驾驶功能的普及。
分控制器2包括中央处理单元21，可以是中央处理器(CPU)、微控制单元(MCU)、数字信号处理器(DSP)、可编辑逻辑控制器(PLC)、现场可编程逻辑门阵列(FPGA)等。能够对各个影音摄录模块50的影音信息进行预处理，再通过无线网络传输给主控制器1，降低主控制器1的处理数据量，提高反应速度，同时也节省了大量的高速数据传输线缆，降低成本、减轻车身重量。
分控制器2设置存储单元22，可以对汽车周边环境进行及时摄录和保存，以便于需要时能够调取需要的环境数据。例如当发生交通事故时，可以调取存储单元22记录的汽车行驶全过程的视频图像和声音，为交通事故提供证据。
在一种实施方式中，如图2所示，分控制器2包括编码模块23，编码模块23通过第二连接线束32与影音摄录模块50电连接，编码模块23将影音摄录模块50的影音信息编码，并通过分控制器2的无线网络发送主控制器1；主控制器1包括解码模块11，解码模块11将影音信息解码。
随着自动驾驶等功能对影像信息的清晰度要求越来越高，影音摄录模块50的摄像头501像素也越来越高。目前大部分车辆的摄像头501已经达到800万像素，影像信息的清晰度能够满足要求，但对数据的传输则更加困难，如果是100M光纤，理论上的最大传输速度是12.5MB/s，而800万像素的影音信息，一帧的容量就能达到8MB左右，如果完全无损的将影音信息传递，不管是对传输系统，还是对分控制器2和主控制器1的中央处理单元21，都是极大的挑战。因此，影音摄录模块50传递的影音信息，会在分控制器2的编码模块23进行编码处理，将视频文件压缩，满足降低传输信息的大小，使影音信息能够通过无线网络传输。对应的在主控制器1内设置解码模块11，能够将编码的影音信息进行解码，使其转化为显示系统4能够显示的影音信息。
在一种实施方式中，如图5所示，车身上设置第一转向机构61，影音摄录模块50固定在第一转向机构61上，第一转向机构61设置第一电机611，能够带动影音摄录模块50转动。一般汽车上的影音摄录模块50都是固定在车身上，并不能移动或转动，摄 录的影像也是固定角度，即使是广角镜头，也会有摄录死角，会导致部分车辆周围环境信息不全，驾驶人员无法做出相对准确的判定。另外，例如行车记录单元51只能记录车辆行驶前方的影像信息，当需要观察车内的情况时，行车记录单元51无法摄录，安装其他摄录单元又会增加成本，在行车记录单元51上增加第一转向机构61，可以使行车记录单元51能够摄录汽车内部或外部的各个角度的影像。
如图5所示，第一转向机构61设置与影音摄录模块50固定连接的转动轴，转动轴的一端直接连接第一电机611，或者通过转动机构，例如齿轮机构与第一电机611连接，当第一电机611转动时，会带动转动轴，同时驱动影音摄录模块50旋转，使其能够转到驾驶人员需要的角度上。
第一电机611通过第二连接线束32与分控制器2连接，分控制器2通过无线网络从主控制器1获得控制信号，并对第一电机611进行转动角度和速度的控制。
第一转向机构61能够带动影音摄录模块50在一个平面内转动，例如水平平扫或垂直平扫。
在一种实施方式中，如图5所示，影音摄录模块50固定在第一转向机构61上，第一转向机构61设置第一电机611，能够带动影音摄录模块50转动；车身上设置第二转向机构62，第一转向机构61固定在第二转向机构62上，第二转向机构62设置第二电机621，能够带动第一转向机构61转动。
第二转向机构62设置与第一转向机构61连接的转动轴，转动轴的一端直接连接第二电机621，或者通过转动机构，例如齿轮机构与第二电机621连接，当第二电机621转动时，会带动转动轴，同时驱动第一转向机构61旋转，使其能够转到驾驶人员需要的角度上。
第二电机621通过第二连接线束32与分控制器2连接，分控制器2通过无线网络从主控制器1获得控制信号，并对第二电机621进行转动角度和速度的控制。
第一转向机构61能够带动影音摄录模块50在一个平面内转动，例如水平平扫或垂直平扫。第二转向机构62能够带动第一转向机构61在一个平面内转动，当第一转向机构61和第二转向机构62同时调整转动的角度时，影音摄录模块50可以转动到任意的角度，不再限制在一个平面内旋转，驾驶人员可以获得更多的车内或车外的影像信息。
在一种实施方式中，第一电机61和第二电机62通过第二连接线束32与分控制器2连接，分控制器2通过无线网络接收主控制器1的控制信号，控制第一电机611和/或第二电机621转动。驾驶人员通过显示系统4，对影音摄录模块50的转动下达控制信息， 并通过无线网络传递到分控制器2，分控制器2将控制信息通过第二连接线束32传递到第一电机611和/或第二电机621，使第一电机611和/或第二电机621按照控制信息旋转到指定的角度和位置，以获取相应的影音信息并通过无线网络传递给显示系统4。
在一种实施方式中，如图6所示，还包括电池9，电池9可拆卸的安装在各个影音摄录模块50内，电池9通过第二连接线束32与影音摄录模块50和分控制器2电连接，并给影音摄录模块50和分控制器2提供电能。
如上所述，影音摄录模块50设置在车身的很多位置，影音摄录模块50都需要电能才能驱动，如果通过汽车发电机或者电瓶进行供电，则还需要引出很多电源线连接，造成安装的工时增加，因此，影音摄录模块50内就近设置了电池9，并且可拆卸的安装在影音摄录模块50内，以方便电池9的更换。电池9与影音摄录模块50和分控制器2设在在一起，之间通过第二连接线束32连接并提供电能。
另外，汽车上的影音摄录模块50在汽车熄火后有可能还需要工作，例如行车记录单元51，不仅在行驶过程中要记录道路状态，在停车后也要记录影像信息，避免车辆停放时有其他人员对车辆进行破坏或偷盗，因此需要在行车记录单元51中设置单独的电池9，使其在汽车熄火后，也能对车内或车外的状态进行记录，并能够通过无线网络，发送到驾驶人员的移动控制终端10上。
在一种实施方式中，如图6所示，电池9还设置电量监控装置，电量监控装置能够监控电池9的剩余电量，电量监控装置通过第二连接线束32与电池9和分控制器2电连接，并将电池9的剩余电量信息反馈给分控制器2。
电池9可以是干电池，或者是充电电池，充电电池可以是铅酸电池、镍镉电池、镍氢电池、锂离子电池等。为了能够使电池9重复使用，在本发明中使用的是充电电池，当充电电池使用到一定期限时，电池9内部的电量会消耗掉，从而无法驱动影音摄录模块50和分控制器2，因此需要经常监控电池9内的剩余电量。电量监控装置与电池9的电极连接，其内部的检测装置能够检测电池9的电压和电流状态，并通过预存的计算方式，计算出电池9剩余的电量，并通过第二连接线束32，将电池9的剩余电量信息反馈给分控制器2。分控制器2通过无线网络，将电池9的剩余电量信息传递给主控制器1，并由主控制器1显示在显示系统4上，使驾驶人员能够实时监控各个影音摄录模块50所带的电池9的剩余电量。
在一种实施方式中，如图6所示，电池9还设置电量显示装置93，电量显示装置93与分控制器2电连接，能够通过显示界面显示电池9的剩余电量。电池9的剩余电量信 息可以在显示系统4中查看，也可以在电池9上设置电量显示装置93，电量显示装置93可以是液晶屏或者是数码管，能够将分控制器2传递的电池9的剩余电量信息直接显示出来，使驾驶人员在观察各个影音摄录模块50时，也能查看到电池9的剩余电量信息。
在一种实施方式中，如图6所示，电池9还设置电量报警装置94，电量报警装置94与分控制器2电连接，分控制器2设置电池9剩余电量的报警值，当电池9的剩余电量低于报警值时，分控制器2通过电量显示装置93发出报警信息，和/或，分控制器2将报警信号通过无线网络反馈给主控制器1。不管是显示系统4，还是电量显示装置93，都只是显示当前电池9的剩余电量信息，如果驾驶人员没有注意到电池9的剩余电量信息已经低于阀值，可能会造成影音摄录模块50由于缺电停止工作，在车辆运行过程中损失影像信息，会影响驾驶人员的操作，有可能会做出错误的判断。因此电池9还设置电量报警装置94，电量报警装置94通过第二连接线束32与分控制器2连接，并在分控制器2内设置电池9的剩余电量信息的阀值，也就是报警值。电池9的剩余电量低于报警值，就需要提醒驾驶人员及时对电池9充电，或者更换有电的电池9。电量报警装置94发出警报的信息包括但不限于部分显示内容高亮或闪烁，鸣笛或语音提示等。
在一种实施方式中，车身内还设置电池充电装置(图中未示出)，电池9放置在电池充电装置内并进行充电。当影音摄录模块50内的电池9的剩余电量低于报警值时，不一定有时间进行电池9的充电，因此可以在汽车的后备箱内或其他位置设置电池充电装置，在汽车运行状态下，可以通过发电机，为放置在电池充电装置内的电池9进行充电，当影音摄录模块50内的电池9的剩余电量低于报警值时，可以及时将电池充电装置内已经充电完成的备用电池9拿出来更换上，不会耽误影音摄录模块50的使用。
在一种实施方式中，如图7所示，电池9上设置无线受电线圈91，无线受电线圈91与电池9的电极连接。无线受电线圈91可设置于电池9侧面并与电池9的电极连接，以用于对电池9进行无线充电。其中，无线受电线圈91可以基于电磁感应耦合或磁共振耦合等无线充电方式，对电池9进行无线充电。
电磁感应耦合是指当无线充电线圈911靠近无线受电线圈91时，无线充电线圈911发射的能量信号以电磁感应方式耦合至无线受电线圈91，并提供给电池。
磁共振耦合是指无线充电线圈911内设有与无线充电线圈911串联的送电侧谐振电容，从而形成送电侧LC谐振电路；无线受电线圈91内设置有与无线受电线圈91串联的受电侧谐振电容，从而形成受电侧LC谐振电路；并且送电侧LC谐振电路和受电侧LC谐振电路具有相同的谐振频率。当无线充电线圈911通电时，送电侧LC谐振电路会 产生一个高频振动磁场；在这个高频振动磁场中任意位置处任意时刻的磁场和电场之间呈正交关系，并且在相位上相差1/2π,而且磁场强度远高于电场强度，这个空间电磁场它可以储存能量，但合成的电磁波功率流密度为零，不会传输任何能量，也就是说这个场不会向外辐射，也不会向内损耗。当无线充电线圈911靠近无线受电线圈91时，无线受电线圈91会落入高频振动磁场的范围，由于受电侧LC谐振电路具有与送电侧LC谐振电路相同的谐振频率，受电侧LC谐振电路将产生同频磁场的谐振，使得能量从无线充电线圈911以磁共振形式耦合至无线受电线圈91，并提供给电池9。
在一种实施方式中，各个影音摄录模块50内的电池9全部相同。为了使各个影音摄录模块50内的电池9能够互换，所有的电池9可以设置为同规格、同型号的电池9，所有的电池9都能在电池充电装置内充电，当某个影音摄录模块50内的电池9的剩余电量低于报警值时，可以不用核对电池9的大小和型号，直接将充电完成的电池9更换即可。
在一种实施方式中，还包括与主控制器连接的显示系统4，主控制器1将影音信息传递到显示系统4上。主控制器1不是简单的将影音信息直接反馈到显示系统4上，还要在显示的影像中增加包括但不限于倒车辅助线，人员识别框、汽车行驶状态等信息。显示系统4也不是简单的显示影音信息，还可以包括但不限于触控显示屏和语音输入输出接口等，主控制器1能够通过显示系统4，接收驾驶人员的指令，并转化为控制信号，通过无线网络，发送给设置在影音摄录模块50附近的分控制器2。无线网络可以是基于蓝牙、wifi、紫蜂(ZigBee)、物联网(IOT)、红外、无线家庭数字接口(WDHI)等无线通信技术。
虽然已经通过例子对本发明的一些特定实施例进行了详细说明，但是本领域的技术人员应该理解，以上例子仅是为了进行说明，而不是为了限制本发明的范围。本领域的技术人员应该理解，可在不脱离本发明的范围和精神的情况下，对以上实施例进行修改。本发明的范围由所附权利要求来限定。

Claims (20)

  1. 一种通过无线网络传输的汽车影音系统，其特征在于，包括设置在车身内的主控制器，以及设置在车身的至少一个影音摄录模块和与所述影音摄录模块连接的分控制器，所述主控制器通过无线网络与所述分控制器进行数据与信号传输。
  2. 根据权利要求1所述的通过无线网络传输的汽车影音系统，其特征在于，所述影音摄录模块包括行车记录单元、前侧影像单元、倒车影像单元、左侧后视影像单元、右侧后视影像单元和车顶自动驾驶影像单元中的至少一种。
  3. 根据权利要求1所述的通过无线网络传输的汽车影音系统，其特征在于，所述主控制器包括无线发射单元，所述分控制器包括无线接收单元，所述主控制器的输出端与所述无线发射单元连接并通过无线网络发送控制信号，所述分控制器的输入端与所述无线接收单元连接并接收所述控制信号。
  4. 根据权利要求1所述的通过无线网络传输的汽车影音系统，其特征在于，所述主控制器包括无线接收单元，所述分控制器包括无线发射单元，所述分控制器的输出端与所述无线发射单元连接并通过无线网络发送影音信息，所述主控制器的输入端与所述无线接收单元连接并接收所述影音信息。
  5. 根据权利要求3或4所述的通过无线网络传输的汽车影音系统，其特征在于，所述无线发射单元还包括加密模块，所述主控制器和所述分控制器的输出端通过所述加密模块与所述无线发射单元连接，所述加密模块将所述控制信号或所述影音信息加密；所述无线接收单元包括解密模块，所述主控制器和所述分控制器的输入端通过所述解密模块与所述无线接收单元连接，所述解密模块将接收到的所述控制信号或所述影音信息解密。
  6. 根据权利要求1所述的通过无线网络传输的汽车影音系统，其特征在于，还包括移动控制终端，所述移动控制终端通过无线网络连接所述分控制器，所述分控制器通过无线网络将所述影音信息反馈给所述移动控制终端。
  7. 根据权利要求6所述的通过无线网络传输的汽车影音系统，其特征在于，当所述移动控制终端和所述主控制器同时发送控制信号时，所述分控制器以所述主控制器的控制信号为准。
  8. 根据权利要求1所述的通过无线网络传输的汽车影音系统，其特征在于，所述分控制器包括相互电连接的中央处理单元和存储单元，所述中央处理单元通过所述第二连接线束与所述影音摄录模块电连接，并将所述影音摄录模块的所述影音信息存储到所述 存储单元中。
  9. 根据权利要求1所述的通过无线网络传输的汽车影音系统，其特征在于，所述分控制器包括编码模块，所述编码模块通过所述第二连接线束与所述影音摄录模块电连接，所述编码模块将所述影音摄录模块的所述影音信息编码，并通过所述分控制器的无线网络发送所述主控制器；所述主控制器包括解码模块，所述解码模块将所述影音信息解码。
  10. 根据权利要求1所述的通过无线网络传输的汽车影音系统，其特征在于，所述车身上设置第一转向机构，所述影音摄录模块固定在所述第一转向机构上，所述第一转向机构设置第一电机，能够带动所述影音摄录模块转动。
  11. 根据权利要求1所述的通过无线网络传输的汽车影音系统，其特征在于，所述影音摄录模块固定在第一转向机构上，所述第一转向机构设置第一电机，能够带动所述影音摄录模块转动；所述车身上设置第二转向机构，所述第一转向机构固定在第二转向机构上，所述第二转向机构设置第二电机，能够带动所述第一转向机构转动。
  12. 根据权利要求10或11所述的通过无线网络传输的汽车影音系统，其特征在于，所述第一电机和所述第二电机通过所述第二连接线束与所述分控制器连接，所述分控制器通过无线网络接收所述主控制器的所述控制信号，控制所述第一电机和/或所述第二电机转动。
  13. 根据权利要求1所述的通过无线网络传输的汽车影音系统，其特征在于，还包括电池，所述电池可拆卸的安装在各个影音摄录模块内，所述电池通过所述第二连接线束与所述影音摄录模块和所述分控制器电连接，并给所述影音摄录模块和所述分控制器提供电能。
  14. 根据权利要求13所述的通过无线网络传输的汽车影音系统，其特征在于，所述电池还设置电量监控装置，所述电量监控装置能够监控所述电池的剩余电量，所述电量监控装置通过所述第二连接线束与所述电池和所述分控制器电连接，并将所述电池的剩余电量信息反馈给所述分控制器。
  15. 根据权利要求14所述的通过无线网络传输的汽车影音系统，其特征在于，所述电池还设置电量显示装置，所述电量显示装置与所述分控制器电连接，能够通过显示界面显示所述电池的剩余电量。
  16. 根据权利要求15所述的通过无线网络传输的汽车影音系统，其特征在于，所述电池还设置电量报警装置，所述电量报警装置与所述分控制器电连接，所述分控制器设置所述电池剩余电量的报警值，当所述电池的剩余电量低于所述报警值时，所述分控制 器通过所述电量显示装置发出报警信息，和/或，所述分控制器将报警信号通过无线网络反馈给所述主控制器。
  17. 根据权利要求13所述的通过无线网络传输的汽车影音系统，其特征在于，所述车身内还设置电池充电装置，所述电池放置在所述电池充电装置内并进行充电。
  18. 根据权利要求13所述的通过无线网络传输的汽车影音系统，其特征在于，所述电池上设置无线受电线圈，所述无线受电线圈与所述电池的电极连接。
  19. 根据权利要求13所述的通过无线网络传输的汽车影音系统，其特征在于，各个所述影音摄录模块内的所述电池全部相同。
  20. 根据权利要求1所述的通过无线网络传输的汽车影音系统，其特征在于，还包括与所述主控制器连接的显示系统，所述主控制器将所述影音信息传递到所述显示系统上。
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CN215990977U (zh) * 2021-09-01 2022-03-08 深圳市正锋光电有限公司 一种带安全预警提醒功能的随身运动相机
CN115426477A (zh) * 2022-08-13 2022-12-02 长春捷翼汽车零部件有限公司 一种通过无线网络传输的汽车影音系统
CN218830096U (zh) * 2022-08-13 2023-04-07 长春捷翼汽车科技股份有限公司 一种通过无线网络传输的汽车影音系统

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