CN103522949B - A kind of method of quick display reverse image and car machine system - Google Patents
A kind of method of quick display reverse image and car machine system Download PDFInfo
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- CN103522949B CN103522949B CN201210561467.4A CN201210561467A CN103522949B CN 103522949 B CN103522949 B CN 103522949B CN 201210561467 A CN201210561467 A CN 201210561467A CN 103522949 B CN103522949 B CN 103522949B
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Abstract
The present invention discloses a kind of method and car machine system of quick display reverse image, wherein, described method comprises step: the video memory of car machine system is set to for storage cart machine system interface data the first display memory and be used for storing the second display memory of reverse image data; After starting the inner nuclear layer of car machine system, detect Current vehicle and whether hang reverse gear; When detecting that Current vehicle hangs reverse gear, start camera, and the view data that camera is taken is stored in the second display memory, reads image data from described second display memory, and the reverse image showing the formation of described view data.Reverse image display speed of the present invention is fast, and when needing reversing after normal use car machine system, without the need to starting the app service of car machine system, so switch speed is fast, applies very convenient, practical.
Description
Technical field
The present invention relates to automobile and engineering products field, particularly relate to a kind of method and car machine system of quick display reverse image.
Background technology
Along with the development of Eltec, Eltec is more and more extensive in the application of automotive field.Corresponding automobile and engineering products is also come out one after another, at present based on the automobile and engineering products of android system as Android car machine system, because of its increasing income property, also come into vogue.But also there is certain drawback in Android car machine system at present: system boot is slow, start will bring inconvenience slowly, the situation of moveing backward is needed after such as automotive ignition, system there also is not startup to complete, reverse image just cannot normally show, and now needs user to wait for a period of time, and this not only have impact on the experience of user, if user moves backward by force, also certain potential safety hazard may be brought.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of method and car machine system of quick display reverse image, be intended to solve the problem that when existing car machine system starts, reverse image display speed is slow.
Technical scheme of the present invention is as follows:
A method for quick display reverse image, wherein, comprises step:
A, the video memory of car machine system is set to for storage cart machine system interface data the first display memory and be used for storing the second display memory of reverse image data;
After the inner nuclear layer of B, startup car machine system, detect Current vehicle and whether hang reverse gear;
C, when detecting that Current vehicle hangs reverse gear, start camera, and by camera take view data be stored in the second display memory, reads image data from described second display memory, and show described view data formed reverse image.
The method of described quick display reverse image, wherein, described method also comprises:
After car machine system has started, when detecting that Current vehicle hangs reverse gear, the video memory of described car machine system is switched to described second display memory, reads image data from described second display memory, and shows the reverse image of described view data formation.
The method of described quick display reverse image, wherein, described step C also comprises: when detecting that Current vehicle is not, when hanging reverse gear, read car machine system interface data from described first display memory.
A car machine system for quick display reverse image, wherein, comprising:
Video memory segmentation module, for the video memory of car machine system is set to for storage cart machine system interface data the first display memory and be used for storing the second display memory of reverse image data;
Reverse gear detection module, for start car machine system inner nuclear layer after, detect Current vehicle and whether hang reverse gear;
Reverse image display module, for when detecting that Current vehicle hangs reverse gear, start camera, and the view data that camera is taken is stored in the second display memory, reads image data from described second display memory, and the reverse image showing the formation of described view data.
Beneficial effect: the present invention by the video memory of car machine system is divided into for storage cart machine system interface data the first display memory and be specifically designed to the second display memory storing reverse image data, when starting car machine system, only inner nuclear layer need be started to, can realize showing reverse image, thus reverse image display speed of the present invention is fast, and when needing reversing after normal use car machine system, without the need to starting the app service of car machine system, so switch speed is fast, apply very convenient, practical.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet that the present invention shows the method preferred embodiment of reverse image fast.
Fig. 2 is the structured flowchart that the present invention shows the car machine system preferred embodiment of reverse image fast.
Detailed description of the invention
The invention provides a kind of method and car machine system of quick display reverse image, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to Fig. 1, Fig. 1 is the diagram of circuit that the present invention shows the method preferred embodiment of reverse image fast, and as shown in the figure, it comprises step:
S101, the video memory of car machine system is set to for storage cart machine system interface data the first display memory and be used for storing the second display memory of reverse image data;
After the inner nuclear layer of S102, startup car machine system, detect Current vehicle and whether hang reverse gear;
S103, when detecting that Current vehicle hangs reverse gear, start camera, and by camera take view data be stored in the second display memory, reads image data from described second display memory, and show described view data formed reverse image;
S104, when detect Current vehicle be not hang reverse gear time, from described first display memory, read car machine system interface data.
In step S101, first the video memory of car machine system (the car machine system in the present invention refers to the car machine system based on android system) is divided into two parts: the first display memory and the second display memory, the first display memory is wherein for storage cart machine system interface data, it is not used in display reverse image, second display memory is then be used for specially storing reverse image data, these two parts can not use simultaneously, but switch use, if otherwise use simultaneously, car machine system interface will be caused overlapping with the image of reverse image, occur flower screen or dodge screen.
Because android system start-up course starts boot layer (bottom), kernel layer (inner nuclear layer), java layer, app layer (application layer) successively, the reverse image start-up course of existing car machine system enables camera to be correlated with after app, normally could use reverse image function, the relevant app enabling camera then needs to have started boot layer, kernel layer, java layer, app layer successively, so just cause the problem that run up time is long, display speed is slow, probably need about 20s from startup car machine system to display reverse image.In the present invention, being then provided with the second display memory (only need start to inner nuclear layer) that is used for showing reverse image specially, without the need to starting to app layer, the view data of camera shooting can being shown, so the display speed of reverse image is fast.
In step s 102, this step is after car machine system starts to inner nuclear layer, can detect vehicle-state, to judge whether to need the video memory by car machine system to be switched to the second display memory, to show reverse image fast.
In step s 103, when detecting that Current vehicle hangs reverse gear, when namely moveing backward, then need to show reverse image, its detailed process first starts camera, because time the initialization of kernel layer completes, webcam driver and video memory drive initialization, can start camera, are then stored in the second display memory by the view data that camera is taken, only need from described second display memory reads image data, the reverse image that described view data is formed can be shown.This display method, proves after tested, only needs 4s to have started reverse image, and thus the display speed of reverse image is compared traditional starting method and wanted fast a lot.
And after car machine system worked well, if need reversing in normal use procedure, the video memory of car machine system is also needed to be switched to the second display memory from the first display memory, because only have the second display memory could control to show reverse image, because the present invention is without the need to starting the app service of car machine system, so the speed switched is also quickly, directly reads image data from the second display memory.
But when detecting that Current vehicle is not, when hanging reverse gear, read car machine system interface data from described first display memory, picture when display car machine system normally starts, this process starts identical with car machine system before.
Based on said method, the present invention also provides a kind of car machine system of quick display reverse image, as shown in Figure 2, comprising:
Video memory segmentation module 100, for the video memory of car machine system is set to for storage cart machine system interface data the first display memory and be used for storing the second display memory of reverse image data;
Reverse gear detection module 200, for start car machine system inner nuclear layer after, detect Current vehicle and whether hang reverse gear;
Reverse image display module 300, for when detecting that Current vehicle hangs reverse gear, start camera, and the view data that camera is taken is stored in the second display memory, reads image data from described second display memory, and the reverse image showing the formation of described view data.Describe in detail about existing in the method acting on above of above-mentioned functions module, therefore repeat no more.
In sum, the present invention by the video memory of car machine system is divided into for storage cart machine system interface data the first display memory and be specifically designed to the second display memory storing reverse image data, when starting car machine system, only inner nuclear layer need be started to, can realize showing reverse image, thus reverse image display speed of the present invention is fast, and when needing reversing after normal use car machine system, without the need to starting the app service of car machine system, so switch speed is fast, apply very convenient, practical.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (2)
1. show a method for reverse image fast, it is characterized in that, comprise step:
A, the video memory of car machine system is set to for storage cart machine system interface data the first display memory and be used for storing the second display memory of reverse image data;
After the inner nuclear layer of B, startup car machine system, detect Current vehicle and whether hang reverse gear;
C, when detecting that Current vehicle hangs reverse gear, start camera, and by camera take view data be stored in the second display memory, reads image data from described second display memory, and show described view data formed reverse image;
Described first display memory and the second display memory carry out switching and use;
Wherein, the first display memory is for storage cart machine system interface data, and it is not used in display reverse image, and the second display memory is used for specially storing reverse image data;
Described method also comprises:
After car machine system has started, when detecting that Current vehicle hangs reverse gear, the video memory of described car machine system is switched to described second display memory, reads image data from described second display memory, and shows the reverse image of described view data formation;
Described step C also comprises: when detecting that Current vehicle is not, when hanging reverse gear, read car machine system interface data from described first display memory.
2. show a car machine system for reverse image fast, it is characterized in that, comprising:
Video memory segmentation module, for the video memory of car machine system is set to for storage cart machine system interface data the first display memory and be used for storing the second display memory of reverse image data;
Reverse gear detection module, for start car machine system inner nuclear layer after, detect Current vehicle and whether hang reverse gear;
Reverse image display module, for when detecting that Current vehicle hangs reverse gear, start camera, and the view data that camera is taken is stored in the second display memory, reads image data from described second display memory, and the reverse image showing the formation of described view data;
Described first display memory and the second display memory carry out switching and use.
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| CN201210561467.4A CN103522949B (en) | 2012-12-21 | 2012-12-21 | A kind of method of quick display reverse image and car machine system |
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| CN201210561467.4A CN103522949B (en) | 2012-12-21 | 2012-12-21 | A kind of method of quick display reverse image and car machine system |
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| CN103522949B true CN103522949B (en) | 2016-04-13 |
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| CN105282510A (en) * | 2015-10-21 | 2016-01-27 | 畅索软件科技（上海）有限公司 | Method and device for starting reverse image |
| CN105635668A (en) * | 2015-12-24 | 2016-06-01 | 东软集团股份有限公司 | Image displaying method and device |
| CN105657369B (en) * | 2016-01-08 | 2018-10-12 | 福州瑞芯微电子股份有限公司 | The video frequency monitoring method and system of quick response based on linux system |
| CN106427782A (en) * | 2016-11-02 | 2017-02-22 | 延锋伟世通电子科技（上海）有限公司 | Rear image quick display method based on intelligent vehicular platform |
| CN107161080B (en) * | 2017-04-28 | 2020-07-07 | 惠州华阳通用电子有限公司 | Method for realizing backing track line in vehicle starting process |
| CN107122240B (en) * | 2017-06-01 | 2021-01-22 | 中科创达软件股份有限公司 | Image display processing method and processing device |
| CN107632290A (en) * | 2017-07-28 | 2018-01-26 | 惠州市德赛西威汽车电子股份有限公司 | A kind of fast display method of trailer-mounted radar information |
| CN109910753B (en) * | 2019-03-25 | 2022-03-04 | 深圳创维汽车智能有限公司 | Method, device, storage medium and system for displaying reverse image |
| CN110362518B (en) * | 2019-04-15 | 2020-12-15 | 珠海全志科技股份有限公司 | Method for drawing graph and smoothly transitioning to kernel during system boot |
| CN110248227A (en) * | 2019-06-19 | 2019-09-17 | 福州瑞芯微电子股份有限公司 | A kind of efficient image display method and device |
| CN111372055A (en) * | 2020-03-25 | 2020-07-03 | 东风汽车集团有限公司 | Vehicle bottom image display system and method |
| CN112667335A (en) * | 2020-12-25 | 2021-04-16 | 北京百度网讯科技有限公司 | Method, device and equipment for loading image frames of backing car and storage medium |
| CN113071511A (en) * | 2021-04-21 | 2021-07-06 | 中国第一汽车股份有限公司 | Method and device for displaying reverse image, electronic equipment and storage medium |
| CN114248687A (en) * | 2021-12-31 | 2022-03-29 | 星河智联汽车科技有限公司 | Method, device and equipment for displaying reversing image and storage medium |
| CN114827534A (en) * | 2022-04-02 | 2022-07-29 | 合肥杰发科技有限公司 | Display method of vehicle detection image and vehicle-mounted device |
| CN115991148B (en) * | 2023-03-21 | 2023-07-04 | 南京芯驰半导体科技有限公司 | Reversing image display system and method based on multi-core heterogeneous SoC |
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Address after: 518052 Guangdong city of Shenzhen province Nanshan District Hing Road two No. 6 Wuhan University B815 Shenzhen research building (real Qianhai settled in Shenzhen City, Secretary of Commerce Co. Ltd.) Patentee after: Folda car Networking (Shenzhen) Co. Ltd. Address before: 518052 Guangdong city of Shenzhen province Nanshan District Hing Road two No. 6 Wuhan University B815 Shenzhen research building (real Qianhai settled in Shenzhen City, Secretary of Commerce Co. Ltd.) Patentee before: TCL automotive information services (Shenzhen) Co., Ltd. |
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Address after: 518052 Guangdong city of Shenzhen province Qianhai Shenzhen Hong Kong cooperation zone before Bay Road No. 1 building 201 room A (located in Shenzhen Qianhai business secretary Co. Ltd.) Patentee after: Folda car Networking (Shenzhen) Co. Ltd. Address before: 518052 Guangdong city of Shenzhen province Nanshan District Hing Road two No. 6 Wuhan University B815 Shenzhen research building (real Qianhai settled in Shenzhen City, Secretary of Commerce Co. Ltd.) Patentee before: Folda car Networking (Shenzhen) Co. Ltd. |
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Address after: No.23, 136 Yuhai East Road, Hangzhou Bay New District, Ningbo City, Zhejiang Province Patentee after: Fu Zhi Yi Internet of vehicles (Ningbo) Co.,Ltd. Address before: 518052 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee before: FUERDA IOV (SHENZHEN) Co.,Ltd. |