Detailed Description
In order to further describe the technical means and effects adopted by the present invention to achieve the preset purpose, the following detailed description of the present invention is given with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1, fig. 1 is a block diagram illustrating a video information acquisition system 100 according to a first embodiment of the present invention. The video information acquisition system 100 provided in this embodiment may be, but is not limited to, mounted on a car. As shown in fig. 1, the video information acquisition system 100 of the present embodiment includes a digital hard disk recorder 10 (Digital Video Recorder, DVR), a front camera 20, a rear camera 50, and an inner rear view mirror 60 with a display screen. The first data input of the digital hard disk recorder 10 is electrically connected to the front camera 20, the second data input of the digital hard disk recorder 10 is electrically connected to the rear camera 50, and the first data output of the digital hard disk recorder 10 is electrically connected to the inside rear view mirror 60. The front camera 20 is used for acquiring first video information in front of the automobile and transmitting the first video information to the digital hard disk recorder 10. The rear camera 50 is used for acquiring second video information of the rear of the automobile and transmitting the second video information to the digital hard disk recorder 10. The digital hard disk recorder 10 is used for processing the first video information and the second video information to obtain first video data and second video data, respectively, storing the first video data corresponding to the first video information, and outputting the first video data and the second video data to the inside rear view mirror 60. The interior rear view mirror 60 is used to display the first video data and/or the second video data.
Specifically, in the present embodiment, the inside rear view mirror 60 may, but is not limited to, when receiving an operation instruction input by a user, cause the display screen in the inside rear view mirror 60 to display the first video data and/or the second video data according to the corresponding operation instruction. Specifically, when the operation instruction is to display only the first video data, the display screen in the interior rear view mirror 60 displays only the first video data. When the operation instruction is to display only the second video data, the display screen in the interior rear view mirror 60 displays only the second video data. When the operation instruction is to display the first video data and the second video data simultaneously, the display screen in the interior rearview mirror 60 will display the first video data and the second video data simultaneously, for example, the display screen in the interior rearview mirror 60 can display the first video data and the second video data in a split screen manner, so that the first video data and the second video data can be played simultaneously on the display interface, and further, the user can know the front and rear conditions of the automobile in real time, so that the driving is safer. Specifically, when the digital hard disk recorder 10 receives the display signal corresponding to the second video data, the digital hard disk recorder 10 will control the rear camera 50 to start to collect the second video information behind the automobile, but not limited thereto, for example, when the automobile is reversing, the digital hard disk recorder 10 will receive the reversing signal and directly start the rear camera 50 according to the reversing signal to collect the second video information behind the automobile, and play the second video data on the display screen in the inner rearview mirror 60 in real time.
Specifically, in a real-time manner, the first video information may include, but is not limited to, road condition information, road vehicle information, roadside object information, etc. in front of the automobile captured by the front camera 20, and for example, the video information may be, for example, current pedestrian information on a road, etc.
Specifically, in an embodiment, the second video information may include, but is not limited to, road condition information, on-road vehicle information, roadside object information, etc. in front of the automobile captured by the rear camera 50, and for example, the video information may also be, for example, current pedestrian information on a road, etc.
Specifically, in the present embodiment, the inside rear view mirror 60 may be, but is not limited to, a streaming media rear view mirror.
Specifically, the video information acquisition system 100 provided in this embodiment is electrically connected with the front camera 20, the rear camera 50 and the inner rear view mirror 60 through the digital hard disk video recorder 10, so that the inner rear view mirror can display the first video information acquired by the front camera 20 and/or the second video information acquired by the rear camera 50, so as to monitor the road condition information of the front and rear of the automobile in real time and display the road condition information on the display screen of the inner rear view mirror 60, further protect the driving for safe driving of the automobile, and improve the driving safety.
Referring to fig. 2 together, fig. 2 is a block diagram illustrating a video information acquisition system 100 according to a second embodiment of the invention. As shown in fig. 1 and 2, the video information acquisition system 100 provided in the present embodiment is different from the video information acquisition system 100 provided in the first embodiment only in that the video information acquisition system 100 further includes a vehicle machine 30 and a cloud server 40. Specifically, in the present embodiment, the second data output terminal of the digital hard disk recorder 10 is electrically connected to the car machine 30. The digital hard disk recorder 10 is communicatively connected to the cloud server 40 via a network, which may be, but is not limited to, a 4G network, a wireless network, or the like. The digital hard disk recorder 10 is further configured to upload the first video data to the cloud server. The car set is used for displaying the first video data transmitted by the digital hard disk recorder 10.
Specifically, in the present embodiment, the first video data may be displayed on a display screen in the vehicle, but is not limited thereto, and for example, the first video data may be displayed on a display screen in the inner mirror 60. Specifically, the display screen in the vehicle may display the first video data, and the display screen in the interior mirror 60 may display the second video data, so that the first video data and the second video data may be displayed simultaneously, but is not limited thereto.
Referring to fig. 3 together, fig. 3 is a schematic circuit diagram of the digital video recorder 10 in fig. 2. As shown in fig. 1 and 3, the digital hard disk recorder 10 includes a main processor MPU, a sub processor MCU, and a high-speed communication module 12. Specifically, in the present embodiment, the front camera 20 is electrically connected to the first data input terminal VINS1 of the main processor MPU, and the main processor MPU receives the first video information collected by the front camera 20 through the first data input terminal VINS 1. The rear camera 50 is electrically connected to a second data input VINS2 of the main processor MPU, and the main processor MPU receives second video information collected by the rear camera 50 through the second data input VINS 2. The inner mirror 60 is electrically connected to the first data output VOUT1 of the main processor MPU. The vehicle body 30 is electrically connected to the second data output terminal VOUT2 of the main processor MPU. The serial asynchronous communication interface of the main processor MPU is electrically connected with the auxiliary processor MCU, and the high-speed universal serial bus interface of the main processor MPU is electrically connected with the high-speed communication module 12.
Further, in one embodiment, the digital hard disk recorder 10 further includes a memory module 14, a memory card 16, a DC/DC power module 18, a global navigation satellite system GNSS, a wireless network module WiFi, etc., but is not limited thereto, for example, the digital hard disk recorder 10 may further include a debug module (not shown), an ethernet module (not shown), etc.
Specifically, in the present embodiment, the main processor MPU may include, but is not limited to, a first data input terminal VINS1, a second data output terminal VOUT2, a high-speed universal serial bus interface USB, a first serial asynchronous communication interface UART1, a first high-speed communication interface SDIO1, a memory port DDR, a second serial asynchronous communication interface UART2, and a second high-speed communication interface SDIO2, but is not limited to, for example, the main processor MPU may further include a debug interface (not shown), an ethernet interface (not shown), an audio port (not shown), and the like.
Specifically, in the present embodiment, the digital hard disk recorder 10 is communicatively connected to the cloud server 40 through the high-speed communication module 12, so that the digital hard disk recorder 10 performs data interaction with the cloud server 40. Specifically, the high-speed communication module 12 may be, but is not limited to, electrically connected to a high-speed universal serial bus interface USB in the main processor MPU through a universal serial bus, so as to implement communication between the digital hard disk recorder 10 and the cloud server 40, thereby implementing data interaction between the digital hard disk recorder 10 and the cloud server 40.
Specifically, in the present embodiment, the main processor MPU is also configured to perform encoding processing on the first video data, and output the encoded first video data to the high-speed communication module 12. The high-speed communication module 12 is configured to perform compression processing on the encoded first video data to obtain a video compression file, and upload the video compression file to the cloud server 40.
Specifically, in one embodiment, the high-speed communication module 12 is a 4G communication module or a 5G communication module. Preferably, in the present embodiment, the high-speed communication module 12 is described as a 4G communication module, and the 4G communication module is also electrically connected to an antenna provided at the roof of the automobile. Specifically, the digital hard disk recorder 10 may implement high-speed network services through a SIM card installed in the 4G communication module, but not limited thereto, for example, the digital hard disk recorder 10 may also implement network services through a wireless network module WiFi, and in particular, the wireless network module WiFi is electrically connected to the first high-speed communication interface SDIO1 in the main processor MPU, so that the digital hard disk recorder 10 connects to a wireless network to implement network services.
Specifically, in the present embodiment, the global navigation satellite system GNSS is electrically connected to the first serial asynchronous communication interface UART1 in the main processor MPU to realize the navigation positioning function of the digital hard disk recorder 10, but is not limited thereto, for example, in other embodiments, the digital hard disk recorder 10 may also realize positioning through a positioning service, for example, the digital hard disk recorder 10 may realize network positioning through a 4G communication module.
Specifically, in the present embodiment, the main processor MPU is further configured to process the first video information acquired by the front camera 20 to obtain first video data, and store the first video data in the memory card 16 in the digital hard disk recorder 10. Specifically, the memory card 16 is electrically connected to the second high-speed communication interface SDIO2 in the main processor MPU, so that the main processor MPU can store the first video data obtained after the first video information is received and processed in the memory card 16, thereby implementing the driving record for the user, where the memory card 16 may be, but is not limited to, an SD card. Specifically, the memory module 14 is electrically connected to a memory port DDR in the main processor MPU to provide memory resources for operation of the main processor MPU.
Specifically, in the present embodiment, the sub-processor MCU may include, but is not limited to, an ignition signal interface (not shown), a power control interface (not shown), a high-speed CAN bus interface HSCAN, a third serial asynchronous communication interface (not shown), and a fourth serial asynchronous communication interface mcu_uart.
Specifically, in the present embodiment, the third serial asynchronous communication interface in the sub-processor MCU is electrically connected to the second serial asynchronous communication interface UART2 in the main processor MPU, thereby realizing data interaction between the main processor MPU and the sub-processor MCU.
Specifically, in the present embodiment, the sub-processor MCU outputs an image pickup start signal to the main processor MPU after receiving the ignition signal ACC of the automobile, and the main processor MPU transmits the received image pickup start signal to the front camera 20 to start the front camera 20. Specifically, the ignition signal ACC interface in the secondary processor MCU is electrically connected to the engine of the automobile to receive the ignition signal ACC of the engine. Specifically, the sub-processor MCU, upon receiving the ignition signal ACC, processes the ignition signal ACC to obtain a start control signal of the front camera 20, and outputs the start control signal to the main processor MPU. The main processor MPU receives the start control signal and then transmits the start control signal to the front camera 20, thereby controlling the front camera 20 to start to acquire the first video information in front of the automobile.
Specifically, in this embodiment, the secondary processor is further configured to transmit the rear camera 50 start signal to the main processor when receiving the rear camera 50 start signal, so as to control the rear camera 50 to start, so as to collect the second video information behind the automobile.
Specifically, in the present embodiment, a power control interface in the sub-processor MCU is electrically connected to the DC/DC power module 18 to receive the external power signal BATT. A fourth serial asynchronous communication interface MCU_UART in the sub-processor MCU receives the serial asynchronous communication signal.
Specifically, in the present embodiment, the vehicle machine 30 is electrically connected to the high-speed CAN bus interface HSCAN in the secondary processor MCU through the CAN bus, and the vehicle machine 30 is also electrically connected to the second data output terminal VOUT2 of the main processor MPU through the LVDS harness. Specifically, the auxiliary processor MCU is further configured to transmit the real-time first video information to the vehicle 30 when receiving the video playing request signal, so as to display the real-time first video information in a display screen of the vehicle 30. Specifically, in this embodiment, after receiving the video playing request signal sent by the vehicle machine 30, the auxiliary processor MCU processes the received video playing request signal to obtain a video playing signal, and outputs the video playing signal to the main processor MPU. After receiving the video playing signal, the main processor MPU outputs the real-time first video information to the car machine 30, so as to display the real-time first video information on the display screen of the car machine 30.
Specifically, in this embodiment, the cloud server 40 is configured to decode the received video compression file to obtain the original first video data, analyze the original first video data to determine road condition information of the road segment corresponding to the original first video data, and store the road condition information in the road condition information list.
Specifically, the video information acquisition system 100 provided in this embodiment is electrically connected with the front camera 20, the rear camera 50 and the inner rear view mirror 60 through setting up the digital hard disk video recorder 10, so that the inner rear view mirror can display the first video information acquired by the front camera 20 and/or the second video information acquired by the rear camera 50, so as to monitor the road condition information of the front and the rear of the automobile in real time and display the road condition information on the display screen of the inner rear view mirror 60, further protect the driving safety of the automobile, and improve the driving safety, meanwhile, through the communication connection between the digital hard disk video recorder 10 and the cloud service, the digital hard disk video recorder 10 can process the acquired first video information in front of the automobile and upload the processed first video information to the cloud server 40, so that the road condition information of the road section on which the automobile is driven can be obtained by analyzing and processing the first video information in the cloud server 40, and meanwhile, the digital hard disk video recorder 10 can also display the real-time first video information in front through the display screen of the automobile in the automobile machine 30, so as to fully utilize the first video data acquired by the digital hard disk video recorder 10.
Referring to fig. 4, fig. 4 is a block diagram illustrating a third embodiment of an automobile according to the present invention. As shown in fig. 4, the automobile 200 provided in the present embodiment includes a video information acquisition system 210, and specifically, the specific structure of the video information acquisition system 210 may refer to the video information acquisition system 100 in the embodiment shown in fig. 1 to 3, which is not described herein again.
Specifically, in the present embodiment, the automobile 200 may be, but is not limited to, a non-autonomous automobile, for example, an automobile may also be an autonomous automobile.
Specifically, in the present embodiment, the front camera 20 is fixed in front of the automobile 200, for example, the front camera 20 may be installed in a front windshield of the automobile, both sides of a head of the automobile 200, or the like. Specifically, in an embodiment, the number of front cameras 20 may be, but not limited to, a plurality, for example, the number of front cameras 20 may be 3, and the 3 front cameras 20 are respectively installed on two sides of the front windshield and the front head 200, so that the first video information in front of the automobile can be collected in an omnibearing manner. The 3 front cameras 20 are electrically connected with a first data input end VINS1 of the digital hard disk video recorder 10, so that the main processor MPU processes the first video information acquired by the 3 front cameras 20 to obtain fused first video data, and the first video data is displayed through a display screen of the automobile machine 30, so that a user can know a larger view angle in front of the automobile through the display screen of the automobile machine 30, and the safety of driving the automobile by the user is improved.
Specifically, in the present embodiment, the rear camera 50 is fixed to the rear of the automobile 200, for example, the rear camera 50 may be mounted on the rear windshield of the automobile 200, but is not limited thereto, for example, the rear camera 50 may be mounted on both sides of the trunk of the automobile, or the like. Specifically, in an embodiment, the number of rear cameras 50 may be, but not limited to, a plurality, for example, the number of rear cameras 50 may be 3, and the 3 rear cameras 50 are respectively mounted on the rear windshield and both sides of the trunk, so that the second video information behind the automobile can be collected omnidirectionally. The 3 rear cameras 50 are electrically connected with the second data input end VINS2 of the digital hard disk video recorder 10, so that the main processor MPU processes the second video information acquired by the 3 rear cameras 50 to obtain fused second video data, and displays the second video data through the display screen of the inner rearview mirror 60, so that a user can know a larger view angle behind the automobile through the display screen of the inner rearview mirror 60, and the safety of driving the automobile by the user is improved.
Specifically, in the present embodiment, the 4G communication module in the digital hard disk recorder 10 is electrically connected with an antenna disposed on the roof of the automobile, so that the video information acquisition system 210 can realize network service through the 4G communication module, and further the video information acquisition system 210 uploads the first video data to the cloud server 40 through the 4G communication module.
Specifically, in the present embodiment, the non-automatic driving automobile is described as an example, but the present invention is not limited thereto. When a user starts the automobile, a secondary processor MCU in the digital hard disk video recorder 10 in the video information acquisition system 210 receives the ignition signal ACC, and the secondary processor MCU generates a starting control signal of the front camera 20 according to the received ignition signal ACC and outputs the starting control signal to a main processor MPU in the digital hard disk video recorder 10. The main processor MPU transmits the received start control signal to the front camera 20 to start the front camera 20, thereby realizing recording of road information in the driving route of the automobile. Specifically, when receiving the first video information collected by the front camera 20, the main processor MPU analyzes the first video information to obtain first video data, and stores the first video data in the memory card 16, thereby implementing the DVR function. Specifically, in this embodiment, the user may also interact with the digital hard disk video recorder 10 through the car machine 30, so as to view the first video information collected by the front camera 20 in real time through the display screen of the car machine 30 at any time.
Specifically, in this embodiment, the secondary processor is further configured to transmit the rear camera 50 start signal to the main processor when receiving the rear camera 50 start signal, so as to control the rear camera 50 to start, so as to collect the second video information behind the automobile.
Further, in this embodiment, the main processor MPU further performs encoding processing on the first video data obtained by processing, which may, but is not limited to, encode the first video information collected by the front camera 20 in the format of h.264/h.265 and then transmit the encoded first video information to the 4G communication module, specifically, the 4G communication module communicates with the main processor MPU in a USB manner, so as to meet the bandwidth required for transmission of the oversized video file, so as to improve the data transmission efficiency between the 4G communication module and the main processor MPU.
Further, in this embodiment, the 4C communication module performs compression processing on the received encoded first video data to obtain a video compression file corresponding to the first video information collected by the front camera 20, and uploads the obtained video compression file to the cloud server 40 through traffic. Specifically, the 4G communication module may, but is not limited to, automatically compress the received encoded first video data in real time and then send the compressed first video data to the cloud server 40, so that the cloud server 40 can receive the real-time first video information of the current position of the automobile in real time, and further analyze and process the real-time first video information.
Specifically, in this embodiment, the cloud server 40 is configured to decode the received video compression file to obtain the original first video data, analyze the original first video data to determine road condition information of the road segment corresponding to the original first video data, and store the road condition information in the road condition information list. Further, the cloud server 40 may further determine whether the road condition information of the road section is already stored in the road condition information list, if yes, update and store the road condition information of the road section to the road condition information list, for example, update and store a part of the road condition information in the road section with difference, so as to increase the storage speed. If not, the road condition information of the road section is stored in the road condition information list. The cloud server 40 stores the road condition information of the road section through which the automobile passes into the road condition information list to collect the road condition information of each road, so that basic data can be provided for cloud analysis of the automatic driving automobile, and a training data base can be provided for training of the automatic driving automobile.
Further, in an embodiment, the cloud server 40 further performs a judgment process on the road condition information obtained by the analysis, and generates a control signal according to the judgment result, so as to return the control signal to the automatic driving automobile, thereby controlling the automatic driving automobile to automatically run.
Specifically, the automobile provided in this embodiment is electrically connected with the front camera 20, the rear camera 50 and the inner rear view mirror 60 through the digital hard disk recorder 10, so that the inner rear view mirror can display the first video information collected by the front camera 20 and/or the second video information collected by the rear camera 50, so as to monitor the road condition information of the front and the rear of the automobile in real time and display the road condition information on the display screen in the inner rear view mirror 60, further protect the driving of the automobile, and improve the driving safety, meanwhile, the digital hard disk recorder 10 is in communication connection with the cloud service through the digital hard disk recorder 10, so that the digital hard disk recorder 10 can upload the collected first video information in front of the automobile to the cloud server 40 after processing the collected first video information, so that the road condition information of the road section on which the automobile is driven can be obtained through analysis processing of the first video information in the cloud server 40, and meanwhile, the digital hard disk recorder 10 can display the real-time first video information in front of the automobile through the display screen in the automobile 30, so as to fully utilize the first video data collected by the digital hard disk recorder 10.
It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other. For the terminal class embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and the relevant points will be referred to in the description of the method embodiment.