CN210867975U

CN210867975U - Intelligent display system

Info

Publication number: CN210867975U
Application number: CN202020103865.1U
Authority: CN
Inventors: 金永华
Original assignee: Shenzhen Huashi United Technology Co ltd
Current assignee: Shenzhen Huashi United Technology Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-06-26
Anticipated expiration: 2030-01-17

Abstract

The utility model discloses an intelligent display system, which comprises an image acquisition device; the output end of the image acquisition device is electrically connected with a main control DSP chip, the output end of the main control DSP chip is electrically connected with a detection module, and the output end of the main control DSP chip is electrically connected with an image processing chip; and video information of the image acquisition device is input into the image processing chip, and the image acquisition device comprises a fisheye camera. The utility model discloses panoramic picture or video collection before can accomplishing the camera lens to with the demonstration of different angles after handling, made things convenient for the judgement barrier position directly perceived and all ring edge borders condition, the convenient more clear barrier condition of observing different angles when remote and closely for the car rearview monitoring control, vehicle park into the position or through complicated crowded highway section, effectively reduce the emergence of accidents such as scraping, collision, collapse. And the method can also be used for home security monitoring and the like.

Description

Intelligent display system

Technical Field

The utility model relates to an automobile rearview or security protection control technical field specifically are an intelligent display system.

Background

With the rapid development of economy in China and the improvement of the living standard of people, the field of video monitoring is more and more applied to various aspects of life, such as automobiles and security monitoring, the automobiles become an important part in the life of people, more and more families have private cars, a large number of traffic accidents are accompanied, and the attention of people on how to improve the driving safety to reduce the occurrence of traffic accidents is increased. In the process of backing a car, a driver usually utilizes rearview mirrors at the left side and the right side of the car to assist in backing the car.

However, the rearview mirrors have limited view angles, so that a plurality of view dead angles exist, which are hidden dangerously in the process of backing the automobile, and drivers often encounter accidents caused by the fact that the left side, the right side and the rear side of the rearview mirrors cannot be clearly seen in the process of backing the automobile, so that the problem that how to improve the existing backing mode according to the rearview mirrors is urgently solved in the safe driving of the automobile is solved; the driving is easy to advance and difficult to back, which is a real reflection of the driving technique of many drivers; the automobile driver can walk smoothly when the automobile is moved forward, no problem exists, and the automobile driver can roll over 24629 when the automobile is parked and put in a garage, particularly under the conditions of multiple automobiles and tense parking spaces, if a front bumper is collided, the rearview mirror is rubbed off.

However, when the reversing radar is blind, the reversing radar can not act as a blind area, and a plurality of car owners often stop and do not bump the car tails; the remote images can be seen through the backing images, when the distance between the rear vehicle and the rear vehicle is less than 0.5 m, whether the part below the camera touches or is in backing and warehousing cannot be seen (not clear), and when the distance between the rear vehicle and the object is too close, whether the object near the ground touches the vehicle cannot be seen.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an intelligent display system to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an intelligent display system comprises an image acquisition device; the output end of the image acquisition device is electrically connected with a main control DSP chip, the output end of the main control DSP chip is electrically connected with a detection module, and the output end of the main control DSP chip is electrically connected with an image processing chip; the video information of the image acquisition device is input into the image processing chip, and the image acquisition device comprises a fisheye camera; the output end of the image processing chip is electrically connected with a display screen, the image processing chip is used for processing video data collected by the fisheye camera and then clearly displaying the video data on the display screen, and the image processing chip realizes switching output of long-distance head-up display and short-distance overlook display according to information collected by the detection module; the imaging angle of the fisheye camera is rotated downwards from the horizontal when the fisheye camera is 0.1-3 m away from the obstacle.

Preferably, the output end of the fisheye camera is electrically connected with the master control DSP chip, and the fisheye camera is used for realizing 180-degree scene shooting to acquire external image video information; the fisheye camera comprises a microcontroller and a buffer controller; the output end of the microcontroller is bidirectionally connected with an SPI-DMA interface; the output end of the SPI-DMA interface is bidirectionally connected with an SPI flash lamp, and the other output end of the SPI-DMA interface is electrically connected with the buffer controller.

Preferably, the fisheye camera starts to rotate from the horizontal direction at a display angle of 2 meters, and as the distance is continuously close to an obstacle during reversing, the display angle rotates from the horizontal direction until the overlooking display angle reaches the maximum when the distance from the fisheye camera reaches 0.5 meter.

Preferably, the fisheye camera further comprises a parallel interface, a scaling, a VOFEC, an FEC, a display DMA, a multiple shift keying control and a line OSD, the wavelength division multiple access is connected with the buffer controller, the buffer controller is bidirectionally connected with the FEC, and the wavelength division multiple access is connected with the VOFEC.

Preferably, the output end of the buffer controller is connected with a digital-to-analog converter through a laser diode and a DISP in sequence, the DISP outputs data information to the main control DSP chip in a digital mode, and the digital-to-analog converter outputs the data information to the main control DSP chip in an analog mode.

Preferably, the output end of the microcontroller is connected with a memory, the microcontroller is bidirectionally connected with a CFG, and one output end of the microcontroller is provided with a JTAG interface.

Preferably, the display screen is a vehicle-mounted display screen, and the vehicle-mounted display screen is a TFT liquid crystal display screen.

Preferably, the main control DSP chip is connected with the image processing chip in a parallel mode, and the main control DSP chip controls the image processing chip to select video information to be processed and then displayed; one input end of the main control DSP chip is electrically connected with a vehicle-mounted control unit, the vehicle-mounted control unit comprises an ACC power supply unit, and the other output end of the main control DSP chip is electrically connected with a storage module; the main control DSP chip and the image processing chip are mutually matched to complete the field switching of the long-distance head-up shooting and the short-distance head-down shooting of the fisheye camera, and the fisheye camera is used for dividing the collected front-end video scene into three parts; the remote head-up camera enables the display screen to present two-thirds of clear scenes, and the close-range overlook camera enables the display screen to present two-thirds of clear scenes.

Preferably, the detection module comprises a radar sensor and a speed sensor, and the output ends of the radar sensor and the speed sensor are connected to the input end of the main control DSP chip.

The utility model has the advantages that:

the utility model discloses panoramic picture or video collection all around before can accomplishing the camera lens has made things convenient for the judgement barrier position directly perceived and the all ring edge border condition, and the barrier condition of different angles when convenient more clear observation is remote and closely is used in car rearview monitoring control, vehicle parking position or through complicated crowded highway section, effectively reduces the emergence of accidents such as scraping, collision, collapse. The multifunctional observation instrument can be used for observing the whole body state and carried objects of an visitor out of a door more clearly and at different angles in home security, and can be used for keeping a shadow and keeping evidences.

Drawings

FIG. 1 is a control flow chart of the structural system of the present invention;

fig. 2 is a control schematic diagram of the fisheye camera of the present invention;

fig. 3 is the utility model discloses fisheye camera gathers the video and handles the back development schematic diagram through the image processing chip.

In the figure: the system comprises an image acquisition device 1, a fish-eye camera 11, a microcontroller 111, a memory 112, an SPI-DMA interface 113, an SPI flash lamp 114, a buffer controller 115, a digital-to-analog converter 116, a main control DSP chip 2, a vehicle-mounted control unit 3, an ACC power supply 31, a storage module 4, a detection module 5, a radar sensor 51, a speed sensor 52, an image processing chip 6 and a display screen 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an intelligent display system comprises an image acquisition device 1; the output end of the image acquisition device 1 is electrically connected with a main control DSP chip 2, the output end of the main control DSP chip 2 is electrically connected with a detection module 5, the detection module 5 comprises a radar sensor 51 and a speed sensor 52, and the output ends of the radar sensor 51 and the speed sensor 52 are both connected with the input end of the main control DSP chip 2; the output end of the main control DSP chip 2 is electrically connected with an image processing chip 6; video information of the image acquisition device 1 is input into the image processing chip 6, and the image acquisition device 1 comprises a fisheye camera 11; the output end of the image processing chip 6 is electrically connected with the display screen 7, the image processing chip 6 is used for processing the video data collected by the fisheye camera 11 and then clearly displaying the processed video data on the display screen 7, and the image processing chip 6 realizes the switching output of the long-distance head-up display and the short-distance overlook display according to the information collected by the detection module 5; when the fisheye camera 11 is close to an obstacle, the switching process is started to display a downward overlook image, and the display angle generally starts to move downwards from the horizontal level at a distance of 0.3-3 m.

In the embodiment, the imaging angle is displayed from horizontal to downward when the fisheye camera 11 is 2 meters away from the obstacle, the image processing chip 6 senses the distance of the obstacle through the radar sensor 51, and the imaging angle rotates from horizontal to downward along with the continuous approach of the distance until the imaging angle reaches the maximum when the fisheye camera 11 is 0.5 meter away from the fisheye camera; the minimum angle can be set at different distances according to different environments, for example, under the condition of home security monitoring, the minimum distance can be set to be 0.1-0.3 m, for example, the image of the minimum angle is reached under the condition that the distance between a person outside a door and a fisheye camera on the door is only 0.1 m; the angle of the fisheye camera which is fixedly arranged outside the door can also be slightly downwards inclined from the high position (generally, the angle of the slightly downwards inclined angle is between 20 and 30 degrees). When the device is used for monitoring the blind area of the automobile, the display screen 7 adopts a vehicle-mounted display screen which can adopt a TFT liquid crystal display screen; the radar sensor 51 is a DX-LLX-1 sensor, and the speed sensor 52 is a 773-50 triaxial low-g-value DC sensor.

Referring to fig. 1-3, the output terminal of the image processing chip 6 is electrically connected to a display screen 7; the display screen 7 adopts a TFT liquid crystal display screen; the image acquisition device 1 divides four paths of video information and inputs the video information into the image processing chip 6, and the image acquisition device 1 comprises a fisheye camera 11; the output end of the fisheye camera 11 is electrically connected with the main control DSP chip 2, and the fisheye camera 11 is used for realizing 180-degree scene shooting to acquire external image video information; the fisheye camera 11 includes a microcontroller 111 and a buffer controller 115; the output end of the microcontroller 111 is bidirectionally connected with an SPI-DMA interface 113; the output end of the SPI-DMA interface 113 is bidirectionally connected with an SPI flash 114, the other output end of the SPI-DMA interface 113 is electrically connected with the buffer controller 115, the fisheye camera 11 further comprises a parallel interface, a reduction scale, a VOFEC, an FEC, a display DMA, a multiple shift keying control and a line OSD, the wavelength division multiple access is connected with the buffer controller 115, the buffer controller 115 is bidirectionally connected with the FEC, and the wavelength division multiple access is connected with the VOFEC; the output end of the buffer controller 115 is connected with a digital-to-analog converter 116 through a laser diode and a DISP in sequence, the DISP outputs data information to the main control DSP chip 2 in a digital mode, and the digital-to-analog converter 116 outputs the data information to the main control DSP chip 2 in an analog mode; the output end of the microcontroller 111 is connected with a memory 112, the microcontroller 111 is bidirectionally connected with a CFG, and one output end of the microcontroller 111 is provided with a JTAG interface; the main control DSP chip 2 is connected with the image processing chip 6 in a parallel mode, and the main control DSP chip 2 controls the image processing chip 6 to select video information to be processed and displayed; one input end of the main control DSP chip 2 is electrically connected with a vehicle-mounted control unit 3, and the vehicle-mounted control unit 3 comprises an ACC power supply unit 31; the other output end of the main control DSP chip 2 is electrically connected with a storage module 4; the main control DSP chip 2 and the image processing chip 6 are mutually matched to complete the field switching of the long-distance head-up shooting and the short-distance head-down shooting of the fisheye camera 11, and the fisheye camera 11 is used for dividing the collected front-end video scene into three parts; the long-range head-up camera makes the display 7 show the upper two thirds of clear vision, and the short-range overlook camera makes the display 7 show the lower two thirds of clear vision.

The utility model adopts a memory 112 of brand ISSI, IS61LV25616AL-10BLI type, and a storage module 4 adopts a 6ES79548LC030AA0 type storage module; the buffer controller 115 adopts a TSC2020IRTVR type controller; wherein, the microcontroller 111 adopts a CY8C20534-12PVXI type controller; the image processing chip 6 is the core of the graphics card, and the main technical specification and performance of the graphics card basically depend on the technical type and performance of the image processing chip 6; the technical advancement of the display processing chip is mainly measured by the two-dimensional/three-dimensional graphics processing capability of the display processing chip, the data bit width of the chip graphics processing engine, the data bus width between the chip graphics processing engine and the display memory, the supported video memory type capacity, the working clock frequency of the internal RAMDAC (analog/digital converter), the presence of several pixel rendering processing pipelines, the supported graphics Application Program Interface (API) types, the chip production process technology level, and the like, and the image processing chip 6 is an ISP-FH8510 type chip.

Example 1: when the automobile backs, the intelligent display system is used, the obstacle is far away when the automobile backs, the long-distance head-up camera shooting obstacle (CVBS output at the moment) is kept, and when the automobile approaches, the fisheye camera 11 is automatically switched to a short-distance overlooking camera shooting state (switched to an overlooking state and AHD signal output) to realize panoramic real-time camera shooting, as described above; the method is applied to the automobile reversing rear-view camera monitoring condition, and two wiring modes, namely a reversing power supply mode and an ACC power supply mode 31 are provided; the reverse power supply only works when reversing, the automobile is provided with an ACC power supply unit 31, the running speed of the automobile in the state of the ACC power supply unit 31 is less than 20 kilometers, and if the automobile or an obstacle approaches to 0.5 meter or the automobile slightly collides, the automobile is automatically switched to a reverse video monitoring state; the working mode is very suitable for the scene of traffic jam and congestion, and in addition, the radar can sense the approaching of the vehicle through the radar sensor 51 and then automatically flash to remind the vehicle to keep the distance; the technical scheme has two problems, namely, the condition of starting and running of the system needs to be added, namely, the moving speed is lower than 20 kilometers per hour, and the backing-up speed per hour of the automobile is detected and limited to be lower than 20 kilometers per hour under the action of the speed sensor 52 in the running process of the intelligent display system in the running process, so that the backing-up and running conditions of the automobile can be uniformly summarized into one.

Example 2: the intelligent display system is applied to doorway security monitoring, the fisheye camera 11 can carry out panoramic shooting at a long distance, and can observe a plane and adjust to a lower half angle, namely a top view state, at a short distance; when monitoring in a house, the automatic photographing and alarming in a warning area through a network can be realized; the application principle in the security field is the same; the images are processed by a graphics processing chip 6 and then displayed on a display screen 7 at different angles through 180-degree panoramic shooting of a fisheye camera 11. The in-vehicle control unit 3 in embodiment 1 may be modified to an indoor monitoring control unit.

The utility model adopts the fisheye camera 11, which can be arranged at all blind areas around the automobile, can complete the collection of panoramic images or videos around the automobile, and is convenient for the driver to visually judge the position of the automobile and the surrounding environment condition of the automobile, and the automobile can be conveniently controlled to park in place or pass through a complicated crowded road section, thereby effectively reducing the occurrence of accidents such as scraping, collision, collapse and the like;

as shown in fig. 3, the fisheye camera 11 can pick up 180 degrees of images, but the images themselves are distorted and not clear enough, and can be clearly displayed on the display after being processed by the image processing chip 6, as illustrated in the figure, assuming that the 180 degrees front-end image is divided into three parts, when the upper two-thirds image 12 is displayed at a long distance (realizing head-up), or the middle two-thirds part of the whole image, the image on the display is clearer, so that the center position of the whole image is in the horizontal direction, the lower two-thirds image 13 is displayed at a short distance, the center position of the whole image is downward in a top view effect, and thus the processed image can be more clearly displayed after being switched. The most preferable scheme is that when the obstacle is continuously close to the fisheye camera from a long distance and reaches a short distance (when the detection data of the general radar is 2 meters), the center position of the processed scene begins to gradually downwards show a overlook effect, the processed image is generally kept in the whole two-thirds shooting part of 180 degrees and keeps the center position moving downwards, and the image output to the display is converted into an AHD signal to be output, so that the image is clearer. And the image with the lowest angle is obtained until the distance between the obstacle and the fisheye camera 11 is within 0.5 m. The lowest end of the 180 degree scene is also clearly displayed at this time.

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

1. An intelligent display system, characterized by: comprises an image acquisition device (1); the output end of the image acquisition device (1) is electrically connected with a main control DSP chip (2), the output end of the main control DSP chip (2) is electrically connected with a detection module (5), and the output end of the main control DSP chip (2) is electrically connected with an image processing chip (6); video information of the image acquisition device (1) is input into the image processing chip (6), and the image acquisition device (1) comprises a fisheye camera (11); the output electric connection of image processing chip (6) has display screen (7), and this image processing chip (6) are used for clearly showing at display screen (7) behind the video data processing of fish-eye camera (11) collection, and image processing chip (6) realize the switching output of long-range head-up video display and closely overlooking the video display according to the information that detection module (5) gathered.

2. The smart display system of claim 1 wherein: the image processing chip receives the detection information of the detection module (5), realizes the switching output of the long-distance head-up development and the short-distance head-up development to the display screen (7), and adopts CVBS data line output when the long-distance head-up development is adopted; when the short-distance overlook imaging is adopted, an AHD signal data line is adopted for outputting, and when the fisheye camera (11) is 0.5-3 m away from the obstacle, the image angle rotates downwards from the horizontal direction.

3. The smart display system of claim 1 wherein: the fisheye camera (11) starts to rotate from the horizontal direction at a display angle of 2 meters, and along with the continuous approaching of the distance to the obstacle during reversing, the display angle rotates from the horizontal direction until the overlooking display angle reaches the maximum when the distance from the fisheye camera (11) reaches 0.5 meter.

4. The smart display system of claim 1 wherein: the output end of the fisheye camera (11) is electrically connected with the master control DSP chip (2), and the fisheye camera (11) is used for realizing 180-degree scene shooting to collect external image video information; the fisheye camera (11) comprises a microcontroller (111) and a buffer controller (115); the output end of the microcontroller (111) is bidirectionally connected with an SPI-DMA interface (113); the output end of the SPI-DMA interface (113) is bidirectionally connected with an SPI flash lamp (114), and the other output end of the SPI-DMA interface (113) is electrically connected with a buffer controller (115).

5. The smart display system of claim 1 wherein: the fisheye camera (11) further comprises a parallel interface, a scale reduction function, VOFEC, FEC, display DMA, multiple amplitude shift key control and line OSD, wavelength division multiple access is connected with the buffer controller (115), the buffer controller (115) is connected with the FEC in a bidirectional mode, and the wavelength division multiple access is connected with the VOFEC.

6. The intelligent display system of claim 4, wherein: the output end of the buffer controller (115) is connected with a digital-to-analog converter (116) through a laser diode and a DISP in sequence, the DISP outputs data information to the main control DSP chip (2) in a digital mode, and the digital-to-analog converter (116) outputs the data information to the main control DSP chip (2) in an analog mode.

7. The intelligent display system of claim 4, wherein: the output end of the microcontroller (111) is connected with a memory (112), the microcontroller (111) is bidirectionally connected with a CFG, and one output end of the microcontroller (111) is provided with a JTAG interface.

8. The smart display system of claim 1 wherein: the display screen (7) adopts a vehicle-mounted display screen, and the vehicle-mounted display screen adopts a TFT liquid crystal display screen.

9. The smart display system of claim 1 wherein: the main control DSP chip (2) is connected with the image processing chip (6) in a parallel mode, and the main control DSP chip (2) controls the image processing chip (6) to select video information for processing and displaying; one input end of the main control DSP chip (2) is electrically connected with a vehicle-mounted control unit (3), and the vehicle-mounted control unit (3) comprises an ACC power supply unit (31); the other output end of the main control DSP chip (2) is electrically connected with a storage module (4); the main control DSP chip (2) and the image processing chip (6) are mutually matched to complete the view field switching of the long-distance head-up shooting and the short-distance head-down shooting of the fisheye camera (11), and the fisheye camera (11) is used for dividing the collected front-end video scene into three parts; the long-distance head-up camera enables the display screen (7) to present two-thirds of clear scenes, and the short-distance overlook camera enables the display screen (7) to present two-thirds of clear scenes.

10. The smart display system of claim 1 wherein: the detection module (5) comprises a radar sensor (51) and a speed sensor (52), and the output ends of the radar sensor (51) and the speed sensor (52) are connected to the input end of the master control DSP chip (2).