CN111105523A - Movable picture playback system and method for automobile data recorder - Google Patents
Movable picture playback system and method for automobile data recorder Download PDFInfo
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- CN111105523A CN111105523A CN202010019022.8A CN202010019022A CN111105523A CN 111105523 A CN111105523 A CN 111105523A CN 202010019022 A CN202010019022 A CN 202010019022A CN 111105523 A CN111105523 A CN 111105523A
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- China
- Prior art keywords
- video data
- video
- display screen
- main controller
- picture
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
- G07C5/0875—Registering performance data using magnetic data carriers
- G07C5/0891—Video recorder in combination with video camera
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
Abstract
The invention discloses a movable playback picture system for a vehicle event data recorder, which belongs to a display interface system of the vehicle event data recorder, and comprises a display screen, a main controller and a camera, wherein the camera is connected with a storage module, the camera and the display screen are connected with the main controller, and the camera is used for storing acquired video data to the storage module; the main controller is used for reading the source video data in the storage module, drawing a video picture with the same display resolution as that of the display screen in the picture of the source video data according to the display resolution of the current display screen, and transmitting the first video data after drawing to the display screen; the mode of intercepting the local area of the source view screen data through the drawing of the main controller enables original video data shot by the camera to be directly played on a display of the automobile data recorder, and the video area displayed currently on the display screen can be adjusted through the keys, so that the video display is clearer without being compressed when the video is played back.
Description
Technical Field
The invention relates to a display interface system of a vehicle event data recorder, in particular to a movable playback picture system which can be used for the vehicle event data recorder.
Background
The car recorder and the stream media rearview mirror are instruments for recording relevant information such as images and sounds during the running of the vehicle. After the automobile data recorder is installed, the video images and the sounds of the whole automobile running process can be recorded, the images and the sounds of the automobile running process are recorded through high-definition lens shooting, and when an accident happens, evidence is immediately provided to guarantee the self-right of a driver. In the recorder, the monitoring video can be recorded and played back, the accident responsibility is clear at a glance, and the traffic police can quickly and accurately process the accident; the system can not only withdraw from the site quickly and recover the traffic, but also retain the effective evidence at the time of the incident, and build a safe and smooth traffic environment. In the existing recorder and the existing streaming media rearview mirror, the video source transmitted by the camera is not compressed in the playing effect under the normal video recording state, and a lens picture can be displayed in a sliding manner in a touch or key mode. Due to the limitation of the screen size of the recorder, the video recorded and played back in the interface is compressed, for example, 1280x720 pixels are compressed to 1280x320 pixels for playing back, and the video source is compressed, so that the playback effect is poor compared with the normal video recording state effect in the interface between the recorder and the streaming media. The situation in playing back the video is not favorable, and therefore further research and improvement on the display interface system of the automobile data recorder are needed.
Disclosure of Invention
One of the objectives of the present invention is to provide a movable playback image system for a car recorder, so as to solve the problem of playback of similar car recorders through a display screen in the prior art
The video source is compressed under the influence of the resolution of the display screen during the shooting of the video, so that the definition is influenced, and the technical problems of the condition in the video and the like are not easy to observe.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a movable picture playback system for a vehicle event data recorder, which comprises a display screen, a main controller and a camera, wherein the camera is accessed into a storage module, and the camera and the display screen are accessed into the main controller, wherein: the camera is used for storing the acquired video data to the storage module; the main controller is used for reading the source video data in the storage module, drawing a video picture with the same display resolution as that of the display screen in the picture of the source video data according to the display resolution of the current display screen, and transmitting the first video data after drawing to the display screen; the display screen is used for receiving and displaying the video data after drawing; and the main controller is also used for drawing a video picture with the same display resolution as that of the display screen in a corresponding area in the source video data when receiving any one or more of the direction instructions of the upper part, the lower part, the left part and the right part, and transmitting the second video data after drawing to the display screen.
Preferably, the further technical scheme is as follows: and the video pictures displayed by the second video data and the first video data are continuous video pictures.
The further technical scheme is as follows: the main controller and the storage module are both installed on the main board body.
The further technical scheme is as follows: the main controller is also connected with a key module, and the key module is used for outputting upper, lower, left and right direction instructions to the main controller.
The further technical scheme is as follows: the first video data, the second video data and the source video data are played synchronously, and the resolution ratios of the first video data, the second video data and the source video data are the same.
In another aspect, the present invention provides a method for mobile playback of pictures, which can be used in a car recorder, and the method includes the following steps:
step A, the camera stores the collected video data to a storage module;
b, reading source video data in the storage module by the main controller, drawing a video picture with the same display resolution as that of the display screen in a picture of the source video data according to the display resolution of the current display screen, and transmitting the first video data after drawing to the display screen;
step C, the display screen receives and displays the drawn video data;
and D, drawing a video picture with the same display resolution as that of the display screen in a corresponding area in the source video data when the main controller receives any one or more of the upper, lower, left and right direction instructions, and transmitting the second drawn video data to the display screen.
Preferably, the further technical scheme is as follows: and the video pictures displayed by the second video data and the first video data are continuous video pictures.
The further technical scheme is as follows: and D, outputting the direction instructions of up, down, left and right to the main controller by the key module.
The further technical scheme is as follows: the first video data, the second video data and the source video data are played synchronously, and the resolution ratios of the first video data, the second video data and the source video data are the same.
Compared with the prior art, the invention has the following beneficial effects: the method has the advantages that the original video data shot by the camera is directly played on the display of the automobile data recorder through the mode that the main controller draws and intercepts the local area of the source view screen data, and the video area displayed currently on the display screen can be adjusted through the keys, so that the video area does not need to be compressed during video playback, the video display is clearer, the condition in the video image can be observed during playback conveniently, meanwhile, the movable playback picture system for the automobile data recorder is simple in structure and easy to achieve, can be directly refitted on the similar automobile data recorder through software implantation, and is easy to popularize.
Drawings
FIG. 1 is a pictorial video image diagram illustrating one embodiment of the present invention;
FIG. 2 is a schematic block diagram of system connections for illustrating one embodiment of the present invention.
Detailed Description
The invention is further elucidated with reference to the drawing.
One embodiment of the invention is a movable picture playback system for a vehicle event data recorder, which comprises a display screen, a main controller and a camera, wherein the camera is connected to a storage module, and the camera and the display screen are connected to the main controller, wherein:
the camera is used for storing the acquired video data to the storage module;
the main controller is used for reading source video data in the storage module, drawing a video picture with the same display resolution as that of the display screen in a picture of the source video data according to the display resolution of the current display screen, and transmitting first video data after drawing to the display screen;
the display screen is used for receiving and displaying the video data after drawing;
more importantly, the main controller is further configured to, when receiving an orientation instruction of any one or more of up, down, left, and right, draw a video image with a display resolution equal to that of the display screen in a corresponding area in the source video data, and transmit second video data after drawing to the display screen. Preferably, the video frames displayed by the second video data and the first video data are consecutive video frames. In the process of playing the original video, the size of the display screen of the automobile data recorder can be used as a reference, each area in the visual angle range of the original video screen can be played in a lossless mode, and the position can be switched randomly. And the first video data, the second video data and the source video data are played synchronously, and the resolutions of the first video data, the second video data and the source video data are the same.
Taking 1920 × 1080 video resolution and 1280 × 720LCD display screen as examples, when the video recording of the recorder and the streaming media rearview mirror is completed, the video playback interface is entered, and the video recording resolution, that is, the video source is 1920 × 1080 resolution at this time; after the recorder enters the video playback interface, the LCD display screen can only display video pictures with 1280 × 720 video resolution due to the hardware size limitation of the LCD display screen, so that only part of video pictures with 1280 × 720 resolution can be displayed for a video source with 1920 × 1080 resolution. Main control
The device accesses the lens to read lens data, and enables the mainboard to read complete video source data with 1920 × 1080 resolution through software processing of the data binary conversion.
When the main controller reads the complete video source data with the 1920 × 1080 resolution, the main controller needs to draw a video picture first and then transmit the video picture to the display screen, and only the video picture with the 1280 × 720 resolution can be displayed due to the size limitation of the display screen, so that only the video source data with the 1280 × 720 resolution needs to be drawn to the LCD display screen. As shown in FIG. 1, a selectable area is arranged on software to draw a video picture, the area can arbitrarily select video source data with a resolution of 1280 × 720 in the size range of a complete video source, the video source data of the selected area is intercepted after selection, the video picture with the resolution of 1280 × 720 is drawn through the software, and the drawn video picture with the resolution of 1280 × 720 is mapped and displayed on an LCD display screen after drawing.
On the other hand, the main controller is also connected with a key module which is used for outputting direction instructions of up, down, left and right to the main controller; specifically, the main controller is connected with the touch screen or the key board through hardware, the up-down or left-right movement of the playback interface of the recorder is realized by using a touch or key mode, three movement processes of only up-down movement, only left-right movement and up-down and left-right movement are included, and the movement processes are fed back to the main board. The main board obtains the moving process and can play videos in real time in the moving process, and the position of a video picture display area of the LCD display screen, namely the position of a current video picture in complete video source data, is changed through moving operation. The full-resolution playback display of the video pictures can be realized through the moving process.
In this embodiment, through the mode that main control unit draws and intercepts source video screen data local area for directly play the original video data that the camera was shot on vehicle event data recorder's the display, and the accessible button is adjusted the video region of current demonstration on the display screen, thereby need not to compress it when the video playback, makes video display clearer, is convenient for observe the condition in the video image when the playback.
Another embodiment of the present invention is a method for mobile playback of pictures for a drive recorder, the method comprising the steps of:
s1, the camera stores the collected video data in a storage module;
step S2, the main controller reads the source video data in the storage module, draws a video picture with the same display resolution as that of the display screen in the picture of the source video data according to the display resolution of the current display screen, and then transmits the first video data after drawing to the display screen;
step S3, the display screen receives and displays the drawn video data;
and step S4, when the main controller receives any one or more of the direction instructions of the upper part, the lower part, the left part and the right part, drawing a video picture with the same display resolution as that of the display screen in a corresponding area in the source video data, and transmitting the drawn second video data to the display screen. Preferably, the video frames displayed by the second video data and the first video data are consecutive video frames. In this step, the direction commands of up, down, left and right in the step D are output to the main controller by the key module. And simultaneously, synchronously playing the first video data, the second video data and the source video data, wherein the resolutions of the first video data, the second video data and the source video data are the same.
Based on the above embodiment, the present invention also has the following features:
1) because the video source is not compressed, the video playing effect is better, the situations of video deformation and the like can not be generated, and the watching feeling is more comfortable;
2) compared with other recorders and a fixed video resolution playing interface of a recorded playback picture of the streaming media rearview mirror, the video resolution playing interface has the advantages that the resolution is higher, the human-computer interaction experience is better;
3) the display area of the video picture is changed by moving only up and down or moving only left and right or moving up and down and left and right, so that different video picture areas can be seen, and more video picture areas can be selected;
4) the moving process is controlled through the touch screen and the key board, so that a user can select and operate conveniently, and the operation mode can be richer;
5) the video display area can be stored in a shutdown mode, so that repeated work can be reduced in the next using process of a user, and the video playing and displaying position can be found more quickly.
In addition to the foregoing, it should be noted that reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (9)
1. A movable picture playback system for a vehicle event data recorder is characterized in that: the system include display screen, main control unit and camera, the camera inserts storage module, camera and display screen access main control unit, wherein:
the camera is used for storing the acquired video data to the storage module;
the main controller is used for reading the source video data in the storage module, drawing a video picture with the same display resolution as that of the display screen in the picture of the source video data according to the display resolution of the current display screen, and transmitting the first video data after drawing to the display screen;
the display screen is used for receiving and displaying the video data after drawing;
and the main controller is also used for drawing a video picture with the same display resolution as that of the display screen in a corresponding area in the source video data when receiving any one or more of the direction instructions of the upper part, the lower part, the left part and the right part, and transmitting the second video data after drawing to the display screen.
2. The portable playback screen system usable with a drive recorder according to claim 1, characterized in that: and the video pictures displayed by the second video data and the first video data are continuous video pictures.
3. The portable playback screen system usable with a drive recorder according to claim 1, characterized in that: the main controller and the storage module are both installed on the main board body.
4. The portable playback screen system usable with a drive recorder according to claim 1, characterized in that: the main controller is also connected with a key module, and the key module is used for outputting upper, lower, left and right direction instructions to the main controller.
5. The portable playback screen system usable with a drive recorder according to claim 1, characterized in that: the first video data, the second video data and the source video data are played synchronously, and the resolution ratios of the first video data, the second video data and the source video data are the same.
6. A movable picture playback method for a vehicle event data recorder is characterized by comprising the following steps:
step A, the camera stores the collected video data to a storage module;
b, reading source video data in the storage module by the main controller, drawing a video picture with the same display resolution as that of the display screen in a picture of the source video data according to the display resolution of the current display screen, and transmitting the first video data after drawing to the display screen;
step C, the display screen receives and displays the drawn video data;
and D, drawing a video picture with the same display resolution as that of the display screen in a corresponding area in the source video data when the main controller receives any one or more of the upper, lower, left and right direction instructions, and transmitting the second drawn video data to the display screen.
7. The movable picture playback method for a vehicle event data recorder according to claim 6, wherein: and the video pictures displayed by the second video data and the first video data are continuous video pictures.
8. The movable picture playback method for a vehicle event data recorder according to claim 6, wherein: and D, outputting the direction instructions of up, down, left and right to the main controller by the key module.
9. The movable picture playback method for a vehicle event data recorder according to claim 6, wherein: the first video data, the second video data and the source video data are played synchronously, and the resolution ratios of the first video data, the second video data and the source video data are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010019022.8A CN111105523A (en) | 2020-01-08 | 2020-01-08 | Movable picture playback system and method for automobile data recorder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010019022.8A CN111105523A (en) | 2020-01-08 | 2020-01-08 | Movable picture playback system and method for automobile data recorder |
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| CN111105523A true CN111105523A (en) | 2020-05-05 |
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| CN202010019022.8A Pending CN111105523A (en) | 2020-01-08 | 2020-01-08 | Movable picture playback system and method for automobile data recorder |
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| AU7338887A (en) * | 1986-05-27 | 1987-12-03 | National Business Systems, Inc. | Picture storage and retrieval system for various limited storage mediums |
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Application publication date: 20200505 |