CN218830096U - Automobile audio-video system transmitted through wireless network - Google Patents

Abstract

The utility model discloses a through wireless network transmission's audio-visual system of car, including setting up the main control unit in the automobile body to and set up at least one audio-visual shooting module of automobile body and the branch controller of being connected with audio-visual shooting module, main control unit carries out data and signal transmission through wireless network and branch controller. The utility model discloses a plurality of branch controllers are connected audio-visual and are shot with video-corder the module, and the audio-visual information that the module was gathered is shot with video-corder to be the preliminary treatment, and rethread wireless network transmits for main control unit, reduces main control unit's data handling volume, improves the reaction rate, has also saved a large amount of high-speed data transmission cables simultaneously, reduce cost, alleviate automobile body weight.

Description

Automobile audio-video system transmitted through wireless network

Technical Field

The utility model relates to an automobile electrical apparatus technical field, more specifically relates to an audio-visual system of car through wireless network transmission.

Background

Along with the increasing of the holding amount of automobiles, the automobiles on roads are increased, the driving environments of drivers are complex and changeable, and the response speed to sudden events in driving cannot be met only by means of various mirrors and the visual observation of the drivers in the prior art, so that a plurality of audio-video modules are added to the existing automobile to assist the drivers to observe the external environment of the automobile, and even the existing automobile can replace the drivers to make timely response to deal with the sudden situations.

The current video module still relies on a camera device and a microphone to collect images and sounds, and the images and the sounds need to be transmitted to a controller of a dashboard from the video modules at all positions of a vehicle body through a high-speed data transmission cable and then connected to a display system through the controller. The high-speed data transmission cable on the vehicle body is more in number, and occupies larger weight and cost.

In addition, along with the more and more perfect function of automatic driving, the requirement for timely processing the video information of the video module is higher and higher, the video information transmitted by the plurality of video modules is simultaneously processed by the controller, the phenomena of untimely processing, heating of the controller and the like can occur, and the popularization of the automatic driving function is not facilitated.

Therefore, there is a need in the field of automotive electrical equipment for an automotive audio-visual system that can save the use of high-speed data transmission cables, reduce the weight of the vehicle body, reduce the cost of the vehicle, and simultaneously process audio-visual information more quickly.

Disclosure of Invention

The utility model aims at providing a wireless transmission's audio-visual system of car's new technical scheme adopts a plurality of branch controllers to connect audio-visual shooting module, does the preliminary treatment with audio-visual information that audio-visual shooting module gathered, and main control unit is given in the transmission of rethread wireless network, reduces main control unit's the handling data volume, improves reaction rate, has also saved a large amount of high-speed data transmission cables simultaneously, reduce cost, alleviate automobile body weight.

According to the utility model provides a through wireless network transmission's audio-visual system of car, including setting up the main control unit at the automobile body to and set up at least one audio-visual shooting module of automobile body and with audio-visual branch controller that the module is connected of shooting with video-corder, main control unit pass through wireless network with branch controller carries out data and signal transmission.

Optionally, the video-audio recording module includes at least one of a driving recording unit, a front side image unit, a back image unit, a left side rear view image unit, a right side rear view image unit and a roof automatic driving image unit.

Optionally, the main controller includes a wireless transmitting unit, the sub-controller includes a wireless receiving unit, an output end of the main controller is connected to the wireless transmitting unit and sends a control signal through a wireless network, and an input end of the sub-controller is connected to the wireless receiving unit and receives the control signal.

Optionally, the main controller includes a wireless receiving unit, the sub-controller includes a wireless transmitting unit, an output end of the sub-controller is connected with the wireless transmitting unit and sends video information through a wireless network, and an input end of the main controller is connected with the wireless receiving unit and receives the video information.

Optionally, the wireless transmitting unit further includes an encryption module, the output ends of the main controller and the sub-controllers are connected with the wireless transmitting unit through the encryption module, and the encryption module encrypts the control signal or the audio-visual information; the wireless receiving unit comprises a decryption module, the input ends of the main controller and the sub-controllers are connected with the wireless receiving unit through the decryption module, and the decryption module decrypts the received control signals or the audio-video information.

Optionally, the system further comprises a mobile control terminal, the mobile control terminal is connected with the sub-controller through a wireless network, and the sub-controller feeds back the video information to the mobile control terminal through the wireless network.

Optionally, when the mobile control terminal and the main controller simultaneously send a control signal, the sub-controller takes the control signal of the main controller as a reference.

Optionally, the sub-controller includes a central processing unit and a storage unit electrically connected to each other, and the central processing unit is electrically connected to the video-audio recording module through the second connection harness and stores the video-audio information of the video-audio recording module in the storage unit.

Optionally, the sub-controller includes an encoding module, the encoding module is electrically connected to the audio-visual recording module through the second connection harness, the encoding module encodes the audio-visual information of the audio-visual recording module, and sends the encoded audio-visual information to the main controller through a wireless network of the sub-controller; the main controller comprises a decoding module, and the decoding module decodes the audio and video information and transmits the audio and video information to the display system through the first connecting wiring harness.

Optionally, a first steering mechanism is arranged on the vehicle body, the video and audio recording module is fixed on the first steering mechanism, and the first steering mechanism is provided with a first motor and can drive the video and audio recording module to rotate.

Optionally, the video-audio recording module is fixed on a first steering mechanism, and the first steering mechanism is provided with a first motor and can drive the video-audio recording module to rotate; the automobile 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 and can drive the first steering mechanism to rotate.

Optionally, 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 to control the rotation of the first motor and/or the second motor.

Optionally, the system further comprises a battery, wherein the battery is detachably mounted in each audio-video recording module, and the battery is electrically connected with the audio-video recording module and the sub-controller through the second connecting wire harness and provides electric energy for the audio-video recording module and the sub-controller.

Optionally, the battery is further provided with an electric quantity monitoring device, the electric quantity monitoring device can monitor the residual electric quantity of the battery, the electric quantity monitoring device is electrically connected with the battery and the sub-controller through the second connecting wire harness, and the residual electric quantity information of the battery is fed back to the sub-controller.

Optionally, the battery is further provided with an electric quantity display device, the electric quantity display device is electrically connected with the sub-controller, and the residual electric quantity of the battery can be displayed through a display interface.

Optionally, the battery still sets up electric quantity alarm device, electric quantity alarm device with divide the controller electricity to be connected, divide the controller to set up the alarm value of battery residual capacity, work as the residual capacity of battery is less than when the alarm value, divide the controller to pass through electric quantity display device sends alarm information, and/or, divide the controller to feed back alarm signal through wireless network to main control unit, by main control unit passes through display system sends alarm information.

Optionally, a battery charging device is further disposed in the vehicle body, and the battery is placed in the battery charging device and is charged.

Optionally, a wireless power receiving coil is disposed on the battery, and the wireless power receiving coil is connected to an electrode of the battery.

Optionally, the batteries in each of the video-audio recording modules are all the same.

Optionally, the system further comprises a display system connected with the main controller, and the main controller transmits the audio and video information to the display system.

The utility model discloses a characteristics and advantage are:

1. the multi-sub-controller is connected with the audio-video shooting module, audio-video information collected by the audio-video shooting module is preprocessed and transmitted to the main controller through the wireless network, so that the processing data volume of the main controller is reduced, the response speed is improved, meanwhile, a large number of high-speed data transmission cables are saved, the cost is reduced, and the weight of a vehicle body is reduced.

2. The encryption module and the decryption module are used for processing the signals, so that the control signals are unique, and the misoperation of other vehicles caused by wireless transmission of the control signals of different automobiles is avoided.

3. Through the connection of the mobile control terminal and the sub-controllers, the audio-video information collected by the audio-video shooting module can be directly observed on a mobile phone, a tablet and other devices, and the external and internal conditions of the automobile can be monitored even if the automobile is flamed out.

4. The sub-controllers are provided with the central processing unit and the storage unit, can preprocess the audio and video information in advance and transmit the preprocessed audio and video information to the main controller, so that the data volume of transmission is reduced, and the workload of the main controller is also reduced. The storage unit is arranged, so that the surrounding environment of the automobile can be recorded and stored in time, and the required environment data can be called as required.

5. The encoding module is arranged in the sub-controllers, the decoding module is arranged in the main controller, and the audio and video information can be correspondingly processed and restored, so that the data volume of wireless transmission is reduced, and the transmission speed is increased.

6. The audio-video shooting module is provided with the steering mechanism, the direction of the camera can be rotated according to the requirement, pictures required by a driver can be shot and recorded, meanwhile, shooting dead angles can be avoided, and the number of the audio-video shooting module is reduced.

7. An independent battery is arranged nearby the video-audio shooting module, so that the number and the length of power supply wire bundles are reduced. Possess wireless charging and solar charging function simultaneously, can adopt multiple mode to charge to the battery, avoid causing the unable normal operating of car audio-visual system because the electric quantity of battery is low.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a block diagram of an automotive audio/video system according to the present invention;

fig. 2 is another structural block diagram of the car audio/video system of the present invention;

FIG. 3 is a block diagram of another structure of the car audio/video system of the present invention

Fig. 4 is a schematic diagram of the position structure of the audio-video camera module of the car audio-video system of the present invention;

fig. 5 is a schematic structural diagram of the first steering mechanism and the second steering mechanism of the car audio-visual system of the present invention;

fig. 6 is a schematic structural diagram of a battery-related device of the car audio/video system according to the present invention;

fig. 7 is a schematic structural diagram of the wireless rechargeable battery of the car audio/video system of the present invention.

The figures are labeled as follows:

1. a main controller; 2. a sub-controller;

31. a first connection harness; 32. a second connection harness;

4. a display system;

50. a video-audio recording module; 501. a camera; 51. a driving recording unit; 52. a front-side image unit; 53. a reversing image unit; 54. a left rear view image unit; 55. a right-side rear-view image unit; 56. a roof automatic driving image unit;

61. a first steering mechanism; 611. a first motor;

62. a second steering mechanism; 621. a second motor;

71. a wireless transmitting unit; 72. wireless receiving unit

81. An encryption module; 82. a decryption module;

9. a battery; 91. a wireless power receiving coil; 911. a wireless charging coil; 92. an electric quantity monitoring device; 93. an electric quantity display device; 94. an electric quantity alarm device;

10. and moving the control terminal.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

The utility model provides a through wireless network transmission's audio-visual system of car, as shown in fig. 1, including setting up main control unit 1 in the automobile body to and set up at least one audio-visual module 50 of filming with video-corder of automobile body and with audio-visual branch controller 2 of filming with video-corder module 50 connection, main control unit 1 carries out data and signal transmission through wireless network and branch controller 2.

In order to deal with the situation that the number of automobiles on roads is increased and the driving environment is complex and changeable, a plurality of audio-video modules are added to the existing automobile to assist a driver to observe the external environment of the automobile, and even the existing automobile can replace the driver to make a timely response to deal with an emergency. The existing video module still relies on a camera device and a microphone to collect images and sounds, and the images and the sounds need to be transmitted to a controller of a dashboard from the video module at each position of the vehicle body through a high-speed data transmission cable, so that the high-speed data transmission cables on the vehicle body are more in quantity, and occupy larger weight and cost.

The utility model discloses a car audio-visual system, through the branch controller 2 of being connected with a plurality of audio-visual modules of filming with video-corder 50, receive audio-visual module 50's of filming with sound signal, during main control unit 1 of car is transmitted to the rethread wireless network, carry out the analysis to image and sound signal by main control unit 1, and show the display system 4 of car on, make the understanding car outer visual blind area's that navigating mate can be clear concrete condition, thereby make exact judgement 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), an editable logic controller (PLC), a Field Programmable Gate Array (FPGA), and the like. The sub-controller 2 is arranged nearby the video-audio recording module 50, the distance between the sub-controller 2 and the video-audio recording module 50 is short, and the sub-controller and the video-audio recording module can be connected through the second connecting wire harness 32, so that the stability of signal transmission can be ensured. In order to record images at various positions of an automobile, the audio-video recording modules 50 are arranged at various positions of the automobile, so that a wiring harness is connected with the main controller 1, high-speed data transmission cables are wasted, the difficulty degree of installation and maintenance is increased, the sub-controllers 2 are connected with the main controller 1 through the wireless network, the number and the positions of the audio-video recording modules 50 can be unlimited, stable transmission of audio-video signals of the whole automobile can be guaranteed under the condition of more and more mature follow-up automatic driving, the cost is reduced, the working hours of automobile assembly and maintenance are reduced, and the production efficiency is improved.

In one embodiment, as shown in fig. 1-3, the video camera module 50 includes at least one of a driving recording unit 51, a front image unit 52, a back image unit 53, a left rear image unit 54, a right rear image unit 55, and a roof autopilot image unit 56.

The driving recording unit 51 is an instrument for recording the image and sound related information during the driving of the vehicle. After the driving recording unit 51 is installed, the video images and sounds of the whole driving process of the automobile can be recorded, and evidence can be provided for traffic accidents. The tachograph unit 51 is typically mounted above the cab, and in some embodiments the tachograph unit 51 is mounted with the rear view mirrors of the vehicle.

The front image unit 52 is generally installed above or below the license plate frame at the front end of the automobile, and may also be installed in the front air inlet/outlet fence, and the front image unit 52 is used for capturing images in front of the automobile, mainly for the driver to observe the distance from the front automobile and for the driver to go forward and park in the automobile.

The reverse image unit 53 is generally installed above or below the license plate frame at the rear end of the vehicle, and is used for capturing images of the rear of the vehicle, mainly for drivers to observe the conditions of the rear of the vehicle and for backing and parking.

The left rear view unit 54 is typically mounted in the left rear view mirror and is capable of recording the left rear view of the vehicle, and when used in conjunction with the left rear view mirror, provides a more clear indication to the driver during reversing and lane changing.

The right rear view image unit 55 is generally installed in the right rear view mirror, can record the rear right vehicle condition of the automobile, and can provide a more clear indication for the driver in the process of backing up and changing lanes when being combined with the right rear view mirror.

Roof autopilot image unit 56 generally installs in the car roof top, because other image unit positions are lower, under the road condition of complicacy, it is sheltered from by the barrier very probably, can't provide accurate information, roof autopilot image unit 56 is high in position, and combine the wide angle camera 501 of a plurality of directions, can be timely accurate provide the image information of each direction of car, combine with on-vehicle radar and laser radar, can better track vehicle and pedestrian, improve autopilot's usability and security.

The image units of all positions on the automobile are combined for use, the provided audio-visual information is gathered in the main controller 1, and the audio-visual information is combined through software, so that comprehensive and even three-dimensional automobile and external audio-visual information can be provided for drivers, the drivers can make corresponding judgment and correspondence in time and accurately under a complex and changeable environment, meanwhile, effective information sources are also provided for automatic driving, and the driving process is easier and safer.

In one embodiment, as shown in fig. 2, the main controller 1 includes a wireless transmitting unit 71, the sub-controller 2 includes a wireless receiving unit 72, an output terminal of the main controller 1 is connected to the wireless transmitting unit 71 and transmits a control signal through a wireless network, and an input terminal 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 a control signal of the main controller 1 into a wireless transmission signal, and transmitting the wireless transmission signal through a wireless transmitting antenna, for example, F05R is a small-sized low-voltage, micro-power wireless transmitting module. By adopting the SMT process, the sound meter is frequency-stabilized and stable in performance, and is particularly suitable for small-size wireless remote control and data transmission products powered by batteries. The wireless receiving unit 72 is generally divided into two types, i.e., a superregenerative receiving module and a superheterodyne receiving module, and may be further divided into a wireless receiving head (without decoding and outputting a pulse signal) and a wireless receiving board (with a decoding chip and outputting a TTL level signal) according to whether encoding or decoding is performed. The control signal of the main controller 1 is transmitted by the wireless transmitting unit 71, then received by the wireless receiving unit 72, converted into a control signal and transmitted to the sub-controller 2, and the sub-controller 2 controls the corresponding video-audio recording module 50.

In one embodiment, as shown in fig. 2, the main controller 1 includes a wireless receiving unit 72, the sub-controller 2 includes a wireless transmitting unit 71, an output end of the sub-controller 2 is connected to the wireless transmitting unit 71 and transmits the video information through a wireless network, and an input end of the main controller 1 is connected to the wireless receiving unit 72 and receives the video information.

The video-audio recording module 50 needs to feed back the video-audio information to the main controller 1 and display the video-audio information on the display system 4, at this time, the sub-controller 2 needs to be provided with the wireless transmitting unit 71, and the sub-controller 2 can transmit the video-audio information of the video-audio recording module 50 to the wireless transmitting unit 71 and then the video-audio information is transmitted by the wireless transmitting unit 71 through the wireless transmitting antenna. The main controller 1 is provided with a wireless receiving unit 72, and after the wireless receiving unit 72 of the main controller 1 receives the signal sent by the wireless network, the signal is converted into the video information of the video recording module 50 and is transmitted to the display system 4 of the automobile, so that a driver can know the video information of the automobile and the external at any time and can make corresponding feedback in time.

In one embodiment, as shown in fig. 2, the wireless transmitting unit 71 further includes an encryption module 81, the output ends of the main controller 1 and the sub-controllers 2 are connected to the wireless transmitting unit 71 through the encryption module 81, and the encryption module 81 encrypts the control signal or the video information; the wireless receiving unit 72 comprises a decryption module 82, the input ends of the main controller 1 and the sub-controllers 2 are connected with the wireless receiving unit 72 through the decryption module 82, and the decryption module 82 decrypts the received control signal or the video information.

With the increasing development of vehicle informatization, the vehicle-mounted network is arranged and used on most automobiles, the signal interference among different vehicles is correspondingly increased, in order to ensure that audio-video information among different vehicles does not influence other vehicles, the signal transmission and reception of each vehicle have corresponding encryption and decryption programs, and simultaneously, in order to prevent hackers from invading the vehicles, external signals can not be accessed into the information transmission network of the vehicles. The encryption module 81 is used for recoding the control signal or the video information through a certain rule through an internal encoder, namely a key, and then sending out the coded information through wireless transmission, so that even if other vehicles receive the wireless information, the corresponding information cannot be identified due to the absence of the corresponding key, meanwhile, the key can also carry an identification code, and if the identification code of the received information is inconsistent with the identification code of the other vehicles, the corresponding information cannot be identified. Only the information receiving device corresponding to the identification code, that is, the corresponding decryption module 82, decrypts the information using the corresponding rule, and transmits the decrypted information to the corresponding main controller 1 or sub-controller 2.

In one embodiment, as shown in fig. 2, the system further includes a mobile control terminal 10, where 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 comprises a mobile phone, a tablet or a mobile notebook computer and the like, the mobile control terminal 10 can be connected to a wireless network of an automobile through wifi, bluetooth, a 4G network or a 5G network, and is wirelessly connected with the wireless transmitting unit 71 and the wireless receiving unit 72 of the sub-controller 2, so that audio and video information sent by the sub-controller 2 can be received, even if a driver is not in the automobile, the situation inside or outside the automobile can be observed through the mobile control terminal 10, and some abnormal situations can be processed in time. For example, when a child has to be placed in a car, the real-time status of the child can be observed through the driving recording unit 51 in the car, and even communication can be performed. For example, when an abnormal alarm of the car is received in the home, the audio-video information transmitted by each audio-video recording module 50 can be checked on the mobile phone to determine whether the alarm is a false alarm or what kind of condition is specific. The mobile control terminal 10 can also transmit control signals to each audio/video recording module 50 through the installed software to control part of the functions, so that the driver can operate each audio/video recording module 50 without going into the vehicle.

In one embodiment, when the mobile control terminal 10 and the main controller 1 simultaneously transmit the control signal, the sub-controller 2 controls the control signal of the main controller 1. When the mobile control terminal 10 and the main controller 1 simultaneously send control signals, which also represents that someone is in the cab of the vehicle to operate, the sub-controller 2 of the vehicle takes the control signals sent by the main controller 1 as the reference, so as to avoid unexpected actions of the vehicle caused by misoperation of the mobile control terminal 10.

In one embodiment, as shown in fig. 2, the sub-controller 2 includes a central processing unit 21 and a storage unit 22 electrically connected to each other, the central processing unit 21 is electrically connected to the video-audio recording module 50 through a second connection harness 32, and stores video-audio information of the video-audio recording module 50 in the storage unit 22.

Along with the function of automatic driving is more and more perfect, the requirement for timely processing the audio-visual information of the audio-visual module is higher and higher, the audio-visual information transmitted by the audio-visual modules is simultaneously processed by the controller, the phenomena of untimely processing, heating of the controller and the like can occur, and the popularization of the automatic driving function is not facilitated.

The sub-controller 2 includes a central processing unit 21, which may be a Central Processing Unit (CPU), a Micro Control Unit (MCU), a Digital Signal Processor (DSP), an editable logic controller (PLC), a Field Programmable Gate Array (FPGA), or the like. The audio-video information of each audio-video shooting module 50 can be preprocessed, and then transmitted to the main controller 1 through the wireless network, so that the processing data volume of the main controller 1 is reduced, the response speed is improved, meanwhile, a large number of high-speed data transmission cables are saved, the cost is reduced, and the weight of a vehicle body is reduced.

The sub-controller 2 is provided with a storage unit 22 which can record and store the surrounding environment of the automobile in time, so that the required environment data can be called when needed. For example, when a traffic accident occurs, the video images and sounds of the entire driving process of the automobile recorded in the storage unit 22 can be called to provide evidence for the traffic accident.

In one embodiment, as shown in fig. 2, the sub-controller 2 includes an encoding module 23, the encoding module 23 is electrically connected to the video-audio recording module 50 through a second connection harness 32, the encoding module 23 encodes video-audio information of the video-audio recording module 50, and transmits the encoded video-audio information to the main controller 1 through the wireless network of the sub-controller 2; the main controller 1 comprises a decoding module 11, and the decoding module 11 decodes the video information.

With the increasing demand of the functions such as automatic driving for the definition of the image information, the pixels of the camera 501 of the video camera module 50 are also increasing. At present, the definition of image information can meet the requirement, but the transmission of data is more difficult, if the optical fiber is 100M, the theoretical maximum transmission speed is 12.5MB/s, and the capacity of one frame of the image information of 800 ten thousand pixels can reach about 8MB, and if the image information is completely transmitted without damage, the image information is a great challenge for a transmission system, or for the central processing unit 21 of the split controller 2 and the main controller 1. Therefore, the video information transmitted by the video camera module 50 is encoded in the encoding module 23 of the sub-controller 2, and the video file is compressed, so as to reduce the size of the transmission information, and enable the video information to be transmitted through the wireless network. Correspondingly, a decoding module 11 is arranged in the main controller 1, and can decode the encoded video information to convert the encoded video information into video information which can be displayed by the display system 4.

In one embodiment, as shown in fig. 5, a first steering mechanism 61 is disposed on the vehicle body, the video-audio recording module 50 is fixed on the first steering mechanism 61, and the first steering mechanism 61 is disposed with a first motor 611 capable of driving the video-audio recording module 50 to rotate. The video-audio recording module 50 of a typical automobile is fixed on the automobile body and cannot move or rotate, the recorded image is also fixed in angle, and even if the lens is a wide-angle lens, the recording dead angle is also generated, which may cause incomplete information of the surrounding environment of a part of the automobile and make relatively accurate judgment by the driver. In addition, for example, the driving recording unit 51 can only record the image information of the driving front of the vehicle, when the condition in the vehicle needs to be observed, the driving recording unit 51 cannot record images, the cost is increased by installing other recording units, and the driving recording unit 51 can record images of various angles inside or outside the vehicle by adding the first steering mechanism 61 to the driving recording unit 51.

As shown in fig. 5, the first steering mechanism 61 is provided with a rotating shaft fixedly connected to the video-audio recording module 50, one end of the rotating shaft is directly connected to the first motor 611, or is connected to the first motor 611 through a rotating mechanism, such as a gear mechanism, when the first motor 611 rotates, the rotating shaft is driven, and at the same time, the video-audio recording module 50 is driven to rotate, so that the vehicle can rotate to an angle required by a driver.

The first motor 611 is connected to the sub-controller 2 through the second connection harness 32, and the sub-controller 2 obtains a control signal from the main controller 1 through a wireless network and controls the rotation angle and speed of the first motor 611.

The first steering mechanism 61 can rotate the video camera module 50 in a plane, such as a horizontal swipe or a vertical swipe.

In one embodiment, as shown in fig. 5, the audio/video recording module 50 is fixed on the first steering mechanism 61, and the first steering mechanism 61 is provided with a first motor 611 capable of driving the audio/video recording module 50 to rotate; the vehicle body is provided with a second steering mechanism 62, the first steering mechanism 61 is fixed on the second steering mechanism 62, and the second steering mechanism 62 is provided with a second motor 621 which can drive the first steering mechanism 61 to rotate.

The second steering mechanism 62 is provided with a rotating shaft connected with the first steering mechanism 61, one end of the rotating shaft is directly connected with the second motor 621, or the rotating shaft is connected with the second motor 621 through a rotating mechanism, such as a gear mechanism, when the second motor 621 rotates, the rotating shaft can be driven, and meanwhile, the first steering mechanism 61 is driven to rotate, so that the rotating shaft can rotate to an angle required by a driver.

The second motor 621 is connected to the sub-controller 2 through the second connection harness 32, and the sub-controller 2 obtains a control signal from the main controller 1 through the wireless network, and controls the rotation angle and the speed of the second motor 621.

The first steering mechanism 61 can rotate the video camera module 50 in a plane, such as a horizontal swipe or a vertical swipe. The second steering mechanism 62 can drive the first steering mechanism 61 to rotate in a plane, and when the first steering mechanism 61 and the second steering mechanism 62 simultaneously adjust the rotating angles, the video-audio recording module 50 can rotate to any angle without being limited to rotate in a plane, so that a driver can obtain more image information inside or outside the vehicle.

In one embodiment, the first motor 61 and the second motor 62 are connected to the sub-controller 2 through the second connection harness 32, and the sub-controller 2 receives a control signal from the main controller 1 through a wireless network to control the rotation of the first motor 611 and/or the second motor 621. The driver issues control information to the rotation of the video-audio recording module 50 through the display system 4 and transmits the control information to the sub-controller 2 through the wireless network, and the sub-controller 2 transmits the control information to the first motor 611 and/or the second motor 621 through the second connecting wire harness 32, so that the first motor 611 and/or the second motor 621 rotates to a specified angle and position according to the control information to obtain corresponding video-audio information and transmits the corresponding video-audio information to the display system 4 through the wireless network.

In one embodiment, as shown in fig. 6, the video camera module further includes a battery 9, the battery 9 is detachably mounted in each video camera module 50, and the battery 9 is electrically connected to the video camera module 50 and the sub-controller 2 through a second connection wire harness 32 and provides electric power for the video camera module 50 and the sub-controller 2.

As described above, the video camera module 50 is disposed at a plurality of positions of the vehicle body, the video camera module 50 can be driven by electric energy, if the power is supplied by the vehicle generator or the battery, a plurality of power lines are required to be led out for connection, which increases the installation time, so that the battery 9 is disposed in the video camera module 50 nearby, and the video camera module 50 is detachably mounted in the video camera module 50, thereby facilitating the replacement of the battery 9. The battery 9, the video-audio recording module 50 and the sub-controller 2 are connected together by a second connecting wire harness 32 to provide electric energy.

In addition, the video camera module 50 on the car may need to work after the car is turned off, for example, the driving recording unit 51 needs to record the road state during driving and also needs to record the image information after parking, so as to prevent other people from damaging or stealing the car when the car is parked, and therefore, a separate battery 9 needs to be arranged in the driving recording unit 51, so that the vehicle can record the state inside or outside the car after the car is turned off, and the state can be sent to the mobile control terminal 10 of the driver through a wireless network.

In one embodiment, as shown in fig. 6, the battery 9 is further provided with a power monitoring device, which can monitor the remaining power of the battery 9, and the power monitoring device is electrically connected with the battery 9 and the sub-controller 2 through the second connection harness 32, and feeds back the remaining power information of the battery 9 to the sub-controller 2.

The battery 9 may be a dry cell battery or a rechargeable battery, which may be a lead-acid battery, a nickel cadmium battery, a nickel hydrogen battery, a lithium ion battery, or the like. In order to make battery 9 used repeatedly the utility model provides a use rechargeable battery, use a regular time limit when rechargeable battery, the inside electric quantity of battery 9 can consume to unable drive audio-visual shooting module 50 and divide controller 2, consequently need often monitor the remaining capacity in the battery 9. The electric quantity monitoring device is connected with the electrode of the battery 9, the detection device in the electric quantity monitoring device can detect the voltage and current state of the battery 9, the residual electric quantity of the battery 9 is calculated in a pre-stored calculation mode, and the residual electric quantity information of the battery 9 is fed back to the sub-controller 2 through the second connecting wire harness 32. The sub-controller 2 transmits the remaining power information of the battery 9 to the main controller 1 through a wireless network, and the main controller 1 displays the remaining power information on the display system 4, so that a driver can monitor the remaining power of the battery 9 carried by each video-audio camera module 50 in real time.

In one embodiment, as shown in fig. 6, the battery 9 is further provided with a power display device 93, and the power display device 93 is electrically connected to the sub-controller 2 and can display the remaining power of the battery 9 through a display interface. The remaining power information of the battery 9 can be checked in the display system 4, or a power display device 93 can be arranged on the battery 9, and the power display device 93 can be a liquid crystal display or a nixie tube, and can directly display the remaining power information of the battery 9 transmitted by the sub-controller 2, so that a driver can also check the remaining power information of the battery 9 when observing each video-audio recording module 50.

In one embodiment, as shown in fig. 6, the battery 9 is further 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 of the remaining power of the battery 9, when the remaining power of the battery 9 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 a wireless network. Whether the display system 4 or the power display device 93 displays the remaining power information of the battery 9 at present, if the driver does not notice that the remaining power information of the battery 9 is lower than the threshold value, the video-audio recording module 50 may stop working due to power shortage, the image information is lost during the running process of the vehicle, the operation of the driver may be affected, and an erroneous judgment may be made. Therefore, the battery 9 is further provided with a power alarm device 94, the power alarm device 94 is connected to the sub-controller 2 via the second connection harness 32, and a threshold value of the remaining power information of the battery 9, that is, an alarm value, is set in the sub-controller 2. When the remaining capacity 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 charged battery 9. The information for the power alarm device 94 to alert includes, but is not limited to, highlighting or flashing a portion of the display, whistling or voice prompting.

In one embodiment, a battery charging device (not shown) is further provided in the vehicle body, and the battery 9 is placed in the battery charging device and charged. When the residual electric quantity of the battery 9 in the video recording module 50 is lower than the alarm value, the battery 9 is not necessarily charged, so that a battery charging device can be arranged in a trunk or other positions of the automobile, the battery 9 placed in the battery charging device can be charged by a generator in the running state of the automobile, when the residual electric quantity of the battery 9 in the video recording module 50 is lower than the alarm value, the charged backup battery 9 in the battery charging device can be taken out and replaced in time, and the use of the video recording module 50 cannot be delayed.

In one embodiment, as shown in fig. 7, a wireless power receiving coil 91 is provided on the battery 9, and the wireless power receiving coil 91 is connected to an electrode of the battery 9. The wireless power receiving coil 91 may be disposed at a side of the battery 9 and connected to an electrode of the battery 9 for wirelessly charging the battery 9. The wireless power receiving coil 91 can wirelessly charge the battery 9 by a wireless charging method such as electromagnetic induction coupling or magnetic resonance coupling.

The electromagnetic induction coupling means that when the wireless charging coil 911 approaches the wireless receiving coil 91, an energy signal emitted by the wireless charging coil 911 is coupled to the wireless receiving coil 91 in an electromagnetic induction manner and is provided to the battery.

The magnetic resonance coupling means that a power transmission side resonance capacitor connected with the wireless charging coil 911 in series is arranged in the wireless charging coil 911, so that a power transmission side LC resonance circuit is formed; a power receiving side resonant capacitor connected in series with the wireless power receiving coil 91 is provided in the wireless power receiving coil 91, so that a power receiving side LC resonant circuit is formed; and the power transmission-side LC resonance circuit and the power reception-side LC resonance circuit have the same resonance frequency. When the wireless charging coil 911 is electrified, the LC resonance circuit at the power transmission side can generate a high-frequency vibration magnetic field; the magnetic field and the electric field at any time at any position in the high-frequency vibration magnetic field are in an orthogonal relation, the phase difference is 1/2 pi, the magnetic field intensity is far higher than the electric field intensity, the space electromagnetic field can store energy, the power flow density of the combined electromagnetic wave is zero, and no energy is transmitted, namely the field cannot radiate outwards and cannot be lost inwards. When the wireless charging coil 911 approaches the wireless receiving coil 91, the wireless receiving coil 91 may fall into the range of the high-frequency vibration magnetic field, and since the receiving-side LC resonance circuit has the same resonance frequency as the transmitting-side LC resonance circuit, the receiving-side LC resonance circuit will generate resonance of the same frequency magnetic field, so that energy is coupled from the wireless charging coil 911 to the wireless receiving coil 91 in the form of magnetic resonance and is provided to the battery 9.

In one embodiment, the batteries 9 in each of the video and audio recording modules 50 are all identical. In order to make the batteries 9 in each video camera module 50 interchangeable, all the batteries 9 can be set as the batteries 9 with the same specification and the same model, all the batteries 9 can be charged in the battery charging device, when the remaining electric quantity of the battery 9 in a certain video camera module 50 is lower than the alarm value, the charged battery 9 can be directly replaced without checking the size and the model of the battery 9.

In one embodiment, the system further comprises a display system 4 connected with the main controller, and the main controller 1 transmits the video and audio information to the display system 4. The main controller 1 does not simply feed back the audio/video information to the display system 4, but adds information including, but not limited to, a backing auxiliary line, a person recognition frame, a vehicle driving state, etc. to the displayed image. The display system 4 is not simple to display video information, and may include, but not limited to, a touch display screen, a voice input/output interface, and the like, and the main controller 1 may receive an instruction of a driver through the display system 4, convert the instruction into a control signal, and send the control signal to the sub-controllers 2 disposed near the video camera module 50 through a wireless network. The wireless network may be based on wireless communication technologies such as bluetooth, wifi, zigBee (ZigBee), internet of things (IOT), infrared, wireless home digital interface (WDHI), and so on.

Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (20)

1. The automobile audio-video system transmitted through the wireless network is characterized by comprising a main controller arranged in an automobile body, at least one audio-video shooting module arranged in the automobile body and a sub-controller connected with the audio-video shooting module, wherein the main controller is in data and signal transmission with the sub-controller through the wireless network.

2. The vehicle audio/video system transmitted via a wireless network according to claim 1, wherein the audio/video recording module comprises at least one of a driving recording unit, a front-side image unit, a back-up image unit, a left-side rear-view image unit, a right-side rear-view image unit, and a roof automatic driving image unit.

3. The car audio-visual system transmitted through the wireless network according to claim 1, wherein the main controller comprises a wireless transmitting unit, the sub-controller comprises a wireless receiving unit, an output end of the main controller is connected with the wireless transmitting unit and sends a control signal through the wireless network, and an input end of the sub-controller is connected with the wireless receiving unit and receives the control signal.

4. The system of claim 1, wherein the main controller comprises a wireless receiving unit, the sub-controller comprises a wireless transmitting unit, an output end of the sub-controller is connected to the wireless transmitting unit and transmits video information through a wireless network, and an input end of the main controller is connected to the wireless receiving unit and receives the video information.

5. The automobile audio-visual system transmitted through the wireless network according to claim 3 or 4, wherein the wireless transmitting unit further comprises an encryption module, the output ends of the main controller and the sub-controllers are connected with the wireless transmitting unit through the encryption module, and the encryption module encrypts the control signal or the audio-visual information; the wireless receiving unit comprises a decryption module, the input ends of the main controller and the sub-controllers are connected with the wireless receiving unit through the decryption module, and the decryption module decrypts the received control signal or the audio-video information.

6. The vehicle audio-visual system transmitted through the wireless network according to claim 1, further comprising a mobile control terminal, wherein the mobile control terminal is connected to the sub-controllers through the wireless network, and the sub-controllers feed back the audio-visual information to the mobile control terminal through the wireless network.

7. The system of claim 6, wherein the sub-controllers are controlled by the control signal of the main controller when the mobile control terminal and the main controller simultaneously transmit the control signal.

8. The car audio-visual system transmitted through the wireless network according to claim 1, wherein the sub-controller includes a central processing unit and a storage unit electrically connected to each other, the central processing unit is electrically connected to the audio-visual recording module through the second connection harness, and stores the audio-visual information of the audio-visual recording module in the storage unit.

9. The vehicle audio-visual system transmitted through the wireless network according to claim 1, wherein the sub-controller includes a coding module, the coding module is electrically connected to the audio-visual recording module through the second connection harness, the coding module codes the audio-visual information of the audio-visual recording module, and transmits the audio-visual information to the main controller through the wireless network of the sub-controller; the main controller comprises a decoding module, and the decoding module decodes the audio and video information.

10. The system of claim 1, wherein the car body is provided with a first steering mechanism, the video camera module is fixed to the first steering mechanism, and the first steering mechanism is provided with a first motor capable of driving the video camera module to rotate.

11. The vehicle audio-visual system transmitted through the wireless network according to claim 1, wherein the audio-visual recording module is fixed on a first steering mechanism, and the first steering mechanism is provided with a first motor capable of driving the audio-visual recording module to rotate; the automobile 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 and can drive the first steering mechanism to rotate.

12. The vehicle audio-visual system transmitted through the wireless network according to claim 10 or 11, wherein 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 the wireless network to control the rotation of the first motor and/or the second motor.

13. The wireless network transmission car audio-visual system according to claim 1, further comprising a battery, wherein the battery is detachably mounted in each audio-visual recording module, and the battery is electrically connected to the audio-visual recording module and the sub-controller through the second connection harness and supplies electric power to the audio-visual recording module and the sub-controller.

14. The car audio-visual system transmitted through the wireless network according to claim 13, wherein the battery is further provided with an electric quantity monitoring device, the electric quantity monitoring device can monitor the remaining electric quantity of the battery, the electric quantity monitoring device is electrically connected with the battery and the sub-controller through the second connection wire harness, and feeds back the remaining electric quantity information of the battery to the sub-controller.

15. The car audio-visual system through wireless network transmission of claim 14, characterized in that, the battery is further provided with a power display device, the power display device is electrically connected with the sub-controller, and the remaining power of the battery can be displayed through a display interface.

16. The car audio-visual system transmitted through the wireless network according to claim 15, wherein the battery is further provided with an electric quantity alarm device, the electric quantity alarm device is electrically connected with the sub-controller, the sub-controller sets an alarm value of the remaining electric quantity of the battery, when the remaining electric quantity of the battery is lower than the alarm value, the sub-controller sends out alarm information through the electric quantity display device, and/or the sub-controller feeds back an alarm signal to the main controller through the wireless network.

17. The system of claim 13, wherein a battery charger is further disposed in the body, and the battery is placed in the battery charger and charged.

18. The system of claim 13, wherein the battery is provided with a wireless power receiving coil, and the wireless power receiving coil is connected to an electrode of the battery.

19. The wireless networked car audio/video system according to claim 13, wherein said batteries in said audio/video recording modules are identical.

20. The vehicle audio/video system transmitted via a wireless network according to claim 1, further comprising a display system connected to the main controller, wherein the main controller transmits the audio/video information to the display system.

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