CN113232587A - Multi-path analog camera input rearview mirror monitoring screen system and screen display method - Google Patents
Multi-path analog camera input rearview mirror monitoring screen system and screen display method Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 56
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- 238000006243 chemical reaction Methods 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 abstract description 6
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- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
- B60R11/0229—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for displays, e.g. cathodic tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/04—Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
- B60R2011/0019—Side or rear panels
- B60R2011/0022—Pillars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/004—Arrangements for holding or mounting articles, not otherwise provided for characterised by position outside the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/10—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used
- B60R2300/105—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used using multiple cameras
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
- B60R2300/802—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for monitoring and displaying vehicle exterior blind spot views
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Abstract
The invention belongs to the technical field of vehicle display devices, in particular to a multi-path analog camera input rearview mirror monitoring screen system and a screen display method, the multi-path analog camera input rearview mirror monitoring screen system comprises two monitoring screens which are respectively arranged at two sides in a vehicle, and two groups of cameras which are respectively arranged at two sides of a vehicle body, a front-view camera and a rear-view camera in each group of cameras are correspondingly connected to the monitoring screens at the corresponding sides in a signal manner, and pictures shot by the front-view camera and the rear-view camera at the same side are displayed on the monitoring screens at the corresponding sides in a partition manner, so that the monitoring screen system is more convenient and simpler to arrange in the vehicle, the cost is saved, the attention of a driver is more concentrated, the driving process is safer, the pictures shot by the front-view camera and the pictures shot by the rear-view camera are respectively arranged at the upper display area and the lower display area of the monitoring screens, and the watching habits of ordinary people are met, the upper display area and the lower display area can be habitually known to be pictures of the front direction and the rear direction of the vehicle respectively, and the road condition can be observed more conveniently.
Description
Technical Field
The invention belongs to the technical field of vehicle display devices, and particularly relates to a multi-channel analog camera input rearview mirror monitoring screen system and a screen display method.
Background
Traditional vehicle rearview mirror installs in automobile body both sides, learns the vehicle rear condition through the reflection of light, and traditional rearview mirror has following weak point: firstly, the rearview mirror is seriously influenced by weather, and is easy to be drenched and frosted in rainy days or cold days, and the image is unclear; secondly, the rearview mirror has a sight blind area, so that a driver is inconvenient to drive.
In order to solve the problems of the traditional rearview mirror, an electronic rearview mirror is created in recent years, namely, an image system combining a camera and a display screen can enable a driver to observe a more complete image behind the electronic rearview mirror, but the current electronic rearview mirror can only display one path of camera picture on one display screen, although the driver can manually switch the display interfaces of different cameras, the attention of the driver can be influenced in the switching process, the overall observation capability of the driver on the peripheral environment of a vehicle body is reduced, and potential safety hazards exist. In the prior art, chinese patent document No. CN112265502A describes a high-security panoramic rearview system installed in an automobile, which realizes visualization of blind areas of the automobile by providing a camera outside the automobile body and providing 3 display screens in the automobile, and provides a display screen mirror switching device on the display screen, and when the display screen has an imaging fault, the display area of the display screen is converted into a mirror surface by the display screen mirror switching device, so that resource waste is caused by the manner of providing a plurality of display screens, and a driver needs to turn around to observe the display screens at different positions, which also has the problems of inattention and poor security, and in addition, the arrangement of the display system in the automobile is messy due to the provision of the plurality of display screens.
Disclosure of Invention
The invention aims to provide a multi-channel analog camera input rearview mirror monitoring screen system and a screen display method, and solves the technical problem that a vehicle rearview display system in the prior art is poor in safety.
To solve the above technical problem, a first aspect of the present invention is:
the utility model provides a multichannel analog camera input rear-view mirror monitor screen system, including two sets up the monitor screen that is close to A post position in the car respectively to and two sets of cameras that set up respectively in the automobile body both sides, each group the camera includes foresight camera and back vision camera, corresponds the monitor screen of signal connection to corresponding side with foresight camera and the back vision camera of one side, and the picture that shoots with foresight camera and back vision camera of one side is at the monitor screen of corresponding side partition display.
Preferably, the monitor screen is divided into an upper display area and a lower display area, and the upper display area and the lower display area are respectively used for displaying pictures shot by the front-view camera and the rear-view camera on the corresponding side.
Preferably, the camera is connected to the monitoring screen through corresponding signals of an audio and video coding and decoding module, a microcontroller and a video signal conversion module in sequence; the multi-channel analog camera input rearview mirror monitoring screen system further comprises a power supply conversion module, and the output end of the power supply conversion module is electrically connected to the microcontroller and the monitoring screen.
Preferably, an on-screen display driving unit for setting the multi-channel video signals into a partitioned display is arranged in the microcontroller.
Preferably, the monitoring screen is an LCD display screen, the microcontroller is connected with a brightness adjusting knob through a signal, and a PWM output end of the microcontroller is connected with the monitoring screen through a signal for adjusting the brightness of the monitoring screen.
The second aspect of the present invention is:
the method comprises the steps of respectively arranging monitoring screens at positions close to an A column on two sides in a vehicle, respectively arranging a group of cameras for shooting front and rear pictures of the vehicle on two sides of the vehicle body, and displaying the pictures shot by the cameras on the monitoring screens on the corresponding sides in a partition manner.
Preferably, each group of cameras comprises a front-view camera and a rear-view camera.
Preferably, the pictures shot by the front-view camera and the back-view camera are respectively displayed in the upper area and the lower area of the corresponding side monitoring screen.
Preferably, the pictures shot by each camera in each group of cameras are processed by an audio and video coding and decoding module and then are transmitted to a microcontroller in a centralized manner, a screen display driving unit for setting multiple paths of video signals into subarea display is arranged in the microcontroller, and the microcontroller processes the multiple paths of video signals transmitted by the cameras, converts the video signals into video signals through a video signal conversion module and then transmits the video signals to corresponding monitoring screens.
Compared with the prior art, the invention has the beneficial effects that:
1. this multichannel simulation camera input rear-view mirror monitor screen system includes that two set up the monitor screen that is close to A post position in the car respectively, and two sets of cameras that set up respectively in the automobile body both sides, the picture that shoots with a set of foresight camera of one side and back vision camera is on the monitor screen of corresponding side subregion demonstration, thereby the outer picture can show on same monitor screen with the front and back picture of one side of automobile body, need not to set up two monitor screens, it is more convenient to make monitor screen system arrange in the car, succinct, save the cost, and through concentrating the picture on same monitor screen, driver's attention is more concentrated, it is safer to drive the in-process.
2. This multichannel analog camera inputs rear-view mirror monitor screen system and passes through the video signal conversion module with the video signal after microcontroller integrates and convert more stable data format for signal transmission interference killing feature is strong, and stability is stronger.
3. According to the screen display method of the monitoring screen of the rearview mirror input by the multi-channel analog camera, the picture shot by the front-view camera and the picture shot by the rear-view camera are respectively arranged in the upper display area and the lower display area of the monitoring screen, so that the watching habit of ordinary people is met, the upper display area and the lower display area can be habitually known to be pictures in the front-back direction of the vehicle, and the road condition observation is more convenient.
4. Two show areas show vehicle front and back side road conditions about the control screen respectively, compare with traditional rear-view mirror, and this control screen not only can replace the rear-view mirror, can also observe the place ahead road conditions, and is more comprehensive to the observation of whole road conditions for it is more convenient to drive.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of the position of a monitoring screen inside a vehicle in an embodiment of a multi-channel analog camera input rearview mirror monitoring screen system of the present invention.
Fig. 2 is a schematic diagram of the position of a camera on the outer side of a vehicle body in an embodiment of the multi-channel analog camera input rearview mirror monitor screen system of the present invention.
Fig. 3 is a schematic circuit diagram of an embodiment of the multi-channel analog camera input rearview mirror monitor screen system of the present invention.
Fig. 4 is a circuit block diagram of another embodiment of the multi-channel analog camera input rearview mirror monitor screen system of the present invention.
In the drawings, each reference numeral means: the monitoring system comprises a left monitoring screen 1, an upper display area 11, a lower display area 12, a right monitoring screen 2, a left front-view camera 3, a left rear-view camera 4, a center console 10 and a steering wheel 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
a multi-channel analog camera input rearview mirror monitor screen system, please refer to fig. 1 to 3.
As shown in fig. 1, the multi-channel analog camera input rearview mirror monitor screen system comprises two monitor screens which are respectively arranged in the vehicle and are close to the position of an a column, namely a left monitor screen 1 and a right monitor screen 2, wherein the left monitor screen 1 and the right monitor screen 2 are respectively positioned at the left side and the right side of a center console 10, and the angles of the left monitor screen 1 and the right monitor screen 2 enable a driver at the rear side of a steering wheel 20 to watch the monitor screen.
This multichannel simulation camera input rear-view mirror monitor screen system still includes two sets of cameras that set up respectively in the automobile body both sides, and the camera all adopts the simulation camera, and the simulation camera technical maturity, stability is good, and the maintenance cost is low, relatively is suitable for and is used in the vehicle. As shown in fig. 2, each group of cameras includes a front-view camera and a rear-view camera, and taking the camera on the left side of the vehicle as an example, the group of cameras includes a left front-view camera 3 and a left rear-view camera 4, and the left front-view camera 3 and the left rear-view camera 4 are respectively used for shooting pictures in the front-back direction on the left side of the vehicle in real time.
In this embodiment, the front-view camera and the rear-view camera on the same side are connected to the monitor screen on the corresponding side in response to signals, and the pictures taken by the front-view camera and the rear-view camera on the same side are displayed on the monitor screen on the corresponding side in a partitioned manner, as shown in fig. 1, taking the left monitor screen 1 as an example, the left monitor screen 1 is divided into an upper display area and a lower display area, wherein the upper display area 11 is used for displaying the pictures taken by the left front-view camera 3, and the lower display area 12 is used for displaying the pictures taken by the left rear-view camera 4, so that the front and rear pictures on the same side outside the vehicle body can be displayed on the same monitor screen without arranging two monitor screens, so that the monitor screen system is more convenient and simpler to arrange in the vehicle, and the cost is saved, and in addition, the pictures taken by the left front-view camera 3 and the left rear-view camera 4 are respectively arranged on the upper display area 11 and the lower display area 12, the upper display area 11 and the lower display area 12 are pictures in the front-rear direction of the vehicle, respectively, according to the viewing habits of ordinary people.
As shown in fig. 3, in the video conversion process, the camera is connected to the monitor screen sequentially through the audio/video codec module, the microcontroller and the corresponding signal of the video signal conversion module, that is, the signal 1 output by the camera is transmitted to the audio/video codec module, the signal 2 output by the audio/video codec module is transmitted to the microcontroller, the signal 3 output by the microcontroller is transmitted to the video signal conversion module, and the signal 4 output by the video signal is transmitted to the monitor screen.
Specifically, in this embodiment, a signal 1 output by the camera is an analog signal, and is transmitted to the BNC interface of the audio/video codec module through the coaxial cable, and the codec chip of the audio/video codec module can support analog video signals of NTSC and PAL systems, and can simultaneously receive multiple paths of camera signals, and encode the signals into a digital signal 2, and input the digital signal to the microcontroller; the microcontroller is used as a central processing unit of the whole system and is used for finishing the processing of video coding and decoding and ensuring the real-time performance of pictures, and a video input interface of the microcontroller can support various modes; the microcontroller designs 4 paths of output signals 3 in 960H format, a video output interface supports HDMI, VGA and CVBS formats, and the embodiment adopts an HDMI output interface; the monitor screen in this embodiment is an LCD display screen, the monitor screen does not directly adopt a display screen with an HDMI interface, but adopts a display screen with an LVDS interface, for the display screen with the LVDS interface, the signal 3 needs to be processed by the video signal conversion module to obtain the differential signal 4, and the differential signal 4 is transmitted to the monitor screen, so that the interference resistance of signal transmission is strong.
The multi-channel analog camera input rearview mirror monitoring screen system further comprises a power supply conversion module, and the output end of the power supply conversion module is electrically connected to the microcontroller and the monitoring screen. The direct current power supply input power conversion module of vehicle 110V is equipped with the buffer circuit in the power conversion module and steps down, realizes elementary and secondary electric isolation, improves the interference killing feature of circuit, protection rear end load, and power conversion module passes through a plurality of switching power supplies and linear power supply processing again, obtains stable low pressure and supplies microcontroller and control screen to get the electricity. In addition, microcontroller signal connection has the luminance adjust knob, and microcontroller's PWM output end signal is connected to the control screen, output control signal 5 for adjust the luminance of control screen.
Example 2:
a multi-channel analog camera input rearview mirror monitor screen system, please refer to fig. 4.
As shown in fig. 4, compared with embodiment 1, in the multi-channel analog camera input rearview mirror monitor screen system of the present embodiment, a left monitor screen and a right monitor screen are respectively provided with a set of video signal processing circuit, and the power conversion module supplies power to the two sets of video signal processing circuits simultaneously. Taking the left monitoring screen as an example, the corresponding audio/video coding/decoding module comprises a first audio/video coder/decoder and a second audio/video coder/decoder, videos shot by the left front-view camera and the left rear-view camera are processed by the first audio/video coder/decoder and the second audio/video coder/decoder respectively and then transmitted to the microcontroller, and signals output by the microcontroller are converted by the video signal conversion module and then transmitted to the left monitoring screen.
Example 3:
a screen display method for a monitoring screen of a rearview mirror with multi-channel analog camera input, please refer to fig. 1 and fig. 2.
The screen display method for inputting the rearview mirror monitoring screen by the multi-channel analog cameras in the embodiment 1 is characterized in that the screen display method for inputting the rearview mirror monitoring screen by the multi-channel analog cameras is that a left monitoring screen 1 and a right monitoring screen 2 are respectively arranged at positions, close to an A column, of two sides in a vehicle, a group of cameras for shooting front and rear pictures of the vehicle are respectively arranged at two sides of the vehicle body, the pictures shot by the cameras are displayed on the monitoring screens at the corresponding sides in a partition mode, each group of cameras comprise a front-view camera and a rear-view camera, and the left cameras are taken as an example and comprise a left front-view camera 3 and a left rear-view camera 4, and pictures shot by the left front-view camera 3 and the left rear-view camera 4 are respectively displayed on an upper display area 11 and a lower display area 12 of the left monitoring screen 1 in combination with the mode shown in fig. 2.
In this embodiment, the pictures shot by each camera in each group of cameras are processed by the audio/video coding/decoding module and then are transmitted to the microcontroller in a centralized manner, the microcontroller can receive 4 paths of video signals, and the microcontroller is provided with a screen display driving unit for setting the multiple paths of video signals into a partitioned display, so that the output signals are displayed on two monitoring screens in a split screen manner.
Therefore, the screen display method for the monitoring screen of the rearview mirror input by the multi-path analog camera enables the front and the rear pictures on the same side outside the vehicle body to be displayed on the same monitoring screen without arranging two monitoring screens, so that the monitoring screen system is more convenient and simpler to arrange in the vehicle, and the driver is more concentrated and safer in driving by concentrating the pictures on the same monitoring screen. In addition, the picture shot by the left front-view camera and the picture shot by the left rear-view camera are respectively arranged in the upper display area and the lower display area, so that the watching habit of ordinary people is met, the upper display area and the lower display area can be habitually known to be pictures in the front-back direction of the vehicle, and a driver can conveniently observe the road condition in the front-back direction in real time.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a multichannel analog camera input rear-view mirror monitor screen system which characterized in that: including two sets up the control screen that is close to A post position in the car respectively to and two sets of cameras that set up respectively in the automobile body both sides, each group the camera includes foresight camera and rear view camera, corresponds the monitor screen of signal connection to corresponding side with foresight camera and rear view camera of one side, and the picture that shoots with foresight camera and rear view camera of one side shows on the monitor screen of corresponding side subregion.
2. The multi-channel analog camera input rearview mirror monitor screen system of claim 1, wherein: the monitoring screen is divided into an upper display area and a lower display area which are respectively used for displaying pictures shot by the front-view camera and the rear-view camera on the corresponding side.
3. The multi-channel analog camera input rearview mirror monitor screen system of claim 1, wherein: the camera is connected to the monitoring screen through corresponding signals of the audio and video coding and decoding module, the microcontroller and the video signal conversion module in sequence; the multi-channel analog camera input rearview mirror monitoring screen system further comprises a power supply conversion module, and the output end of the power supply conversion module is electrically connected to the microcontroller and the monitoring screen.
4. The multi-channel analog camera input rearview mirror monitor screen system of claim 3, wherein: and the microcontroller is internally provided with a screen display driving unit for setting the multi-channel video signals into subarea display.
5. The multi-channel analog camera input rearview mirror monitor screen system of claim 3, wherein: the monitoring screen is an LCD display screen, the microcontroller is in signal connection with a brightness adjusting knob, and a PWM output end signal of the microcontroller is connected to the monitoring screen to adjust the brightness of the monitoring screen.
6. A screen display method for a monitoring screen of a rearview mirror with multi-channel analog camera input is characterized by comprising the following steps: the monitoring screens are respectively arranged at the positions, close to the A column, of the two sides in the vehicle, a group of cameras used for shooting front and rear pictures of the vehicle are respectively arranged at the two sides of the vehicle body, and the pictures shot by the cameras are displayed on the monitoring screens of the corresponding sides in a partition mode.
7. The multi-channel analog camera input rearview mirror monitor screen display method according to claim 6, characterized in that: each group of cameras comprises a front-view camera and a rear-view camera.
8. The multi-channel analog camera input rearview mirror monitor screen display method according to claim 7, characterized in that: and pictures shot by the front-view camera and the rear-view camera are respectively displayed in the upper area and the lower area of the corresponding side monitoring screen.
9. The multi-channel analog camera input rearview mirror monitor screen display method according to claim 6, characterized in that: the multi-channel video signal processing and transmitting system comprises a microcontroller, a video signal conversion module, a video signal processing module, a video signal transmitting module, a video signal processing module, a video signal transmitting module, a video signal processing module and a video signal transmitting module.
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| CN116749880A (en) * | 2023-06-08 | 2023-09-15 | 长城汽车股份有限公司 | Display method, device, vehicle and storage medium of electronic exterior rearview mirror |
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| CN109672859A (en) * | 2018-12-13 | 2019-04-23 | 中国航空工业集团公司上海航空测控技术研究所 | A kind of analog video monitoring system for civil aircraft |
| CN210536832U (en) * | 2019-10-16 | 2020-05-15 | 英龙华通(武汉)科技发展有限公司 | Control panel for realizing vehicle-mounted IP screen based on full log A20 |
| CN110996480A (en) * | 2020-01-08 | 2020-04-10 | 山东超越数控电子股份有限公司 | Screen dimming method based on CAN bus |
Cited By (2)
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| CN114422755A (en) * | 2022-01-12 | 2022-04-29 | 中驰智能科技(扬州)有限公司 | Multi-camera shooting picture display method based on vehicle-mounted shooting adjustment |
| CN116749880A (en) * | 2023-06-08 | 2023-09-15 | 长城汽车股份有限公司 | Display method, device, vehicle and storage medium of electronic exterior rearview mirror |
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