CN103514645A - Image recording system and method for vehicle - Google Patents
Image recording system and method for vehicle Download PDFInfo
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- CN103514645A CN103514645A CN201210331063.6A CN201210331063A CN103514645A CN 103514645 A CN103514645 A CN 103514645A CN 201210331063 A CN201210331063 A CN 201210331063A CN 103514645 A CN103514645 A CN 103514645A
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- 238000000034 method Methods 0.000 title claims description 17
- 230000003068 static effect Effects 0.000 claims abstract description 31
- 230000006835 compression Effects 0.000 claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 14
- 238000010586 diagram Methods 0.000 description 3
- 230000005039 memory span Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
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Abstract
An image recording system for a vehicle, comprising: the device comprises an image acquisition unit, a processing module and a nonvolatile memory. The image capturing unit is used for capturing a series of images. The processing module comprises an image compression unit and a static image data acquisition unit; the image compression unit is used for compressing and encoding according to the serial images to obtain a video bit stream; the static image data capturing unit is used for capturing a static image bit stream within a preset time interval from the video bit stream. The nonvolatile memory comprises a first storage area and a second storage area; the video bit stream is recorded in the first storage area, and the still image bit stream is recorded in the second storage area.
Description
Technical field
The present invention relates to a kind of image recording system and method, particularly relate to a kind of vehicle image register system and method.
Background technology
Existing drive recorder, can record the coherent video data in when driving, usings the use of the reference when having a mind to outer generation.The finite capacity of the storer configuring due to drive recorder, so mode that it adopts circulation to make video recording mostly, that is to say, drive recorder only can continue the image data of a finite time length of record in its storer, after exceeding this finite time length (its storer is fully written), the image data that is originally recorded in storer will be override by new image data, wherein, this finite time length is depending on capacity of image resolution (resolution), image compression form, storer etc.
Yet, the image data that existing drive recorder records is dynamic image (or claiming video) data, the dynamic image data of 30 frames per second (frame) of take is example, even process through image compression, its whole image data amount is still rather huge, generally speaking, this finite time length cannot reach a few days, or even several weeks; When having the demand of having access to image data a few days ago, the image data of wanting to have access to has often been written and has not existed in storer.
Summary of the invention
The object of the present invention is to provide a kind of vehicle image register system.
So vehicle image register system of the present invention comprises: an image acquisition unit, a processing module, and a nonvolatile memory.
This image acquisition unit is in order to capture a series of image.This processing module comprises an image compression unit and a static image data acquisition unit; This image compression unit is in order to compress and to encode according to the image of this consecutive, to obtain a video bit stream; This static image data acquisition unit is in order to a static image bit stream in Preset Time interval of this video bit stream acquisition certainly.This nonvolatile memory comprises first storage area and second storage area; Wherein, this video bit stream is to be recorded in this first storage area, and this static image bit stream is to be recorded in this second storage area.
Preferably, this video bit stream is to adopt circulation writing mode to be written into this first storage area.
Preferably, this video bit stream comprises at least one groups of pictures, each groups of pictures has an inside-frame, and this static image data acquisition unit is to capture one of them inside-frame in each Preset Time interval, then is write this second storage area.
Preferably, this Preset Time interval is a built-in value of this vehicle image register system.
Preferably, the interval user's setting value for being set voluntarily by user of this Preset Time.
Another object of the present invention, providing a kind of vehicle image recording method, it is realized with a vehicle image register system, this vehicle image register system comprises an image acquisition unit, a processing module, and a nonvolatile memory, this nonvolatile memory comprises first storage area and second storage area.
So vehicle image recording method of the present invention comprises the following step:
(a) utilize this image acquisition unit to capture a series of image;
(b) utilize this processing module to compress according to the image of this consecutive and encode to obtain a video bit stream, and being write this first storage area of this nonvolatile memory; And
(c) utilize this processing module from this video bit stream, to capture a static image bit stream in a Preset Time interval, and write this second storage area of this nonvolatile memory.
Preferably, in step (b), this video bit stream is to adopt circulation writing mode to be written into this first storage area.
Preferably, this video bit stream comprises at least one groups of pictures, and each groups of pictures has an inside-frame, in step (c), this processing module is to capture one of them inside-frame in each Preset Time interval, then is write this second storage area.
Preferably, this Preset Time interval is a built-in value of this vehicle image register system.
Preferably, the interval user's setting value for being set voluntarily by user of this Preset Time.
Beneficial effect of the present invention is: by this static image data acquisition unit, in each Preset Time interval, only from this video bit stream, capture a static image bitstream recording in this second storage area; Compared to existing drive recorder, under the identical prerequisite of memory span, this second storage area can continue this integral body time span of record, is greater than this finite time length of the sustainable record of existing drive recorder.
Accompanying drawing explanation
Fig. 1 is a calcspar, shows a preferred embodiment of vehicle image register system of the present invention;
Fig. 2 is a schematic diagram, shows a video bit stream;
Fig. 3 is a process flow diagram, shows a vehicle image recording method.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail:
Refer to Fig. 1 and Fig. 2, the preferred embodiment of vehicle image register system 1 of the present invention is applicable to automobile (not shown), this vehicle image register system 1 comprises an image acquisition unit 11, is electrically connected on a processing module 12 of this image acquisition unit 11, is electrically connected on a memory buffer (buffer) 13 of this processing module 12, and is electrically connected on a nonvolatile memory (non-volatile memory) 14 of this memory buffer 13.
In this preferred embodiment, this memory buffer 13 is a dynamic RAM (Dynamic Random Access Memory is called for short DRAM), and this nonvolatile memory 14 is a storage card (memory card); Yet this memory buffer 13 and this nonvolatile memory 14 also can have for other are existing the storer of similar functions; Be not limited to this preferred embodiment disclosed.
Wherein, this processing module 12 comprises an image compression unit 121, and a static image (still image) data acquisition unit 122; This nonvolatile memory 14 comprises first storage area 141, and second storage area 142.
This image acquisition unit 11 is in order to capture a series of image; In this preferred embodiment, the image of this consecutive in the place ahead when this image acquisition unit 11 is advanced in order to capture this automobile.
This image compression unit 121 of this processing module 12 is in order to compress and to encode according to the image of this consecutive, to obtain a video bit stream (video bitstream), this video bit stream is temporary in this memory buffer 13, then be written into this first storage area 141 of this nonvolatile memory 14 then; Wherein, this video bit stream is to adopt similar existing circulation writing mode, to be written into this first storage area 141; In other words, when this first storage area 141 is fully written, this video bit stream that is recorded in this first storage area 141 originally will be override by new video bit stream.
In this preferred embodiment, this image compression unit 121 is to adopt existing H.264 standard compress and encode; Yet this image compression unit 121 also can adopt other existing compression and coding standards, for example, dynamic image expert group (Moving Picture Experts Group is called for short MPEG)-2 standards; Be not limited to this preferred embodiment disclosed.
For instance, Fig. 2 is a schematic diagram of this video bit stream, wherein, this video bit stream comprises at least one groups of pictures (Group of Pictures is called for short GOP) 2, and each groups of pictures has inside-frame (Intra frame, be called for short I-frame) 21, at least one prediction-frame (Predicted frame, be called for short P-frame), and at least one bi-directional predicted-frame (Bi-directional frame is called for short B-frame).
This static image data acquisition unit 122 of this processing module 12 is in order to a static image bit stream in Preset Time interval of this video bit stream acquisition certainly, this static image bit stream is temporary in this memory buffer 13, then be written into this second storage area 142 of this nonvolatile memory 14 then.
In this preferred embodiment, this static image data acquisition unit 122 is in each Preset Time interval, from this video bit stream, to capture this static image bit stream to be temporary in this memory buffer 13, then is write this second storage area 142; Further, this static image data acquisition unit 122 is in each Preset Time interval, to capture one of them inside-frame 21 to be temporary in this memory buffer 13, then is write this second storage area 142; Wherein, this Preset Time interval can be a built-in value of this vehicle image register system 1, also can be for set voluntarily user's setting value by user.
The example of continuity Fig. 2, suppose the interval n minute of being of this Preset Time, in this preferred embodiment, this static image data acquisition unit 122 is in every n minute, to appoint to get an inside-frame 21 and be temporary in this memory buffer 13, then is write this second storage area 142.
It is worth mentioning that, because this static image data acquisition unit 122 is in each Preset Time interval, only from this video bit stream acquisition single static image bit stream, carry out record, therefore, a data volume that is recorded in this second storage area 142 is far below a data volume of this video bit stream; Under the identical prerequisite of memory span, 142 of this second storage areas can continue a whole time span of record, can be much larger than this finite time length of the sustainable record of existing drive recorder described in prior art.
Refer to Fig. 1 and Fig. 3, a vehicle image recording method of carrying out after vehicle image register system 1 start of the present invention comprises the following step.
In step 31, utilize a series of image of this image acquisition unit 11 acquisition.
In step 32, utilize this image compression unit 121 of this processing module 12 according to the image of this consecutive, compress and encode to obtain a video bit stream, and write this first storage area 141 of this nonvolatile memory 14.
In step 33, utilize this static image data acquisition unit 122 of this processing module 12 from this video bit stream, to capture a static image bit stream in each Preset Time interval, and write this second storage area 142 of this nonvolatile memory 14; Then, get back to step 31.
In sum, due to this static image data acquisition unit 122 of vehicle image register system 1 of the present invention, in each Preset Time interval, only from this video bit stream, capture single static image bitstream recording in this second storage area 142 of this nonvolatile memory 14; Compared to existing drive recorder, under the identical prerequisite of memory span, 142 of this second storage areas can continue this integral body time span of record, are greater than this finite time length of the sustainable record of existing drive recorder, so really can reach object of the present invention.
But as described above, it is only preferred embodiment of the present invention, when not limiting scope of the invention process with this, i.e. every simple equivalence of doing according to the claims in the present invention scope and invention description content changes and modifies, and all still remains within the scope of the patent.
Claims (10)
1. a vehicle image register system, comprises: an image acquisition unit, a processing module, and a nonvolatile memory, and this image acquisition unit is in order to capture a series of image; It is characterized in that:
This processing module comprises an image compression unit, an and static image data acquisition unit, this image compression unit is in order to compress and to encode according to the image of this consecutive, to obtain a video bit stream, this static image data acquisition unit is in order to a static image bit stream in Preset Time interval of this video bit stream acquisition certainly;
This nonvolatile memory comprises first storage area, and second storage area, and wherein, this video bit stream is to be recorded in this first storage area, and this static image bit stream is to be recorded in this second storage area.
2. vehicle image register system as claimed in claim 1, is characterized in that: this video bit stream is to adopt circulation writing mode to be written into this first storage area.
3. vehicle image register system as claimed in claim 1, it is characterized in that: this video bit stream comprises at least one groups of pictures, each groups of pictures has an inside-frame, this static image data acquisition unit is to capture one of them inside-frame in each Preset Time interval, then is write this second storage area.
4. vehicle image register system as claimed in claim 1, is characterized in that: this Preset Time interval is a built-in value of this vehicle image register system.
5. vehicle image register system as claimed in claim 1, is characterized in that: the interval user's setting value for being set voluntarily by user of this Preset Time.
6. a vehicle image recording method, it is realized with a vehicle image register system, this vehicle image register system comprises an image acquisition unit, a processing module, and a nonvolatile memory, and this nonvolatile memory comprises first storage area and second storage area; It is characterized in that, this vehicle image recording method comprises the following step:
(a) utilize this image acquisition unit to capture a series of image;
(b) utilize this processing module to compress according to the image of this consecutive and encode to obtain a video bit stream, and being write this first storage area of this nonvolatile memory; And
(c) utilize this processing module from this video bit stream, to capture a static image bit stream in a Preset Time interval, and write this second storage area of this nonvolatile memory.
7. vehicle image recording method as claimed in claim 6, is characterized in that: in step (b), this video bit stream is to adopt circulation writing mode to be written into this first storage area.
8. vehicle image recording method as claimed in claim 6, it is characterized in that: this video bit stream comprises at least one groups of pictures, each groups of pictures has an inside-frame, in step (c), this processing module is to capture one of them inside-frame in each Preset Time interval, then is write this second storage area.
9. vehicle image recording method as claimed in claim 6, is characterized in that: this Preset Time interval is a built-in value of this vehicle image register system.
10. vehicle image recording method as claimed in claim 6, is characterized in that: the interval user's setting value for being set voluntarily by user of this Preset Time.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101123550A TW201401876A (en) | 2012-06-29 | 2012-06-29 | Vehicle image recording system and method |
| TW101123550 | 2012-06-29 |
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| Publication Number | Publication Date |
|---|---|
| CN103514645A true CN103514645A (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210331063.6A Pending CN103514645A (en) | 2012-06-29 | 2012-09-07 | Image recording system and method for vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN103514645A (en) |
| TW (1) | TW201401876A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111868792A (en) * | 2018-03-16 | 2020-10-30 | 美光科技公司 | Black box data recorder for autonomous driving vehicle |
| US11373466B2 (en) | 2019-01-31 | 2022-06-28 | Micron Technology, Inc. | Data recorders of autonomous vehicles |
| US11410475B2 (en) | 2019-01-31 | 2022-08-09 | Micron Technology, Inc. | Autonomous vehicle data recorders |
| US11756353B2 (en) | 2018-06-18 | 2023-09-12 | Micron Technology, Inc. | Downloading system memory data in response to event detection |
| US11782605B2 (en) | 2018-11-29 | 2023-10-10 | Micron Technology, Inc. | Wear leveling for non-volatile memory using data write counters |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2891111Y (en) * | 2006-01-09 | 2007-04-18 | 张辉 | On-board image recorder |
| CN101739739A (en) * | 2008-11-25 | 2010-06-16 | 富士通天株式会社 | Drive recorder |
| CN202205246U (en) * | 2011-08-31 | 2012-04-25 | 深圳市阿龙电子有限公司 | Driving record system based on wireless fidelity (WIFI) communication |
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2012
- 2012-06-29 TW TW101123550A patent/TW201401876A/en unknown
- 2012-09-07 CN CN201210331063.6A patent/CN103514645A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2891111Y (en) * | 2006-01-09 | 2007-04-18 | 张辉 | On-board image recorder |
| CN101739739A (en) * | 2008-11-25 | 2010-06-16 | 富士通天株式会社 | Drive recorder |
| CN202205246U (en) * | 2011-08-31 | 2012-04-25 | 深圳市阿龙电子有限公司 | Driving record system based on wireless fidelity (WIFI) communication |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111868792A (en) * | 2018-03-16 | 2020-10-30 | 美光科技公司 | Black box data recorder for autonomous driving vehicle |
| US11676431B2 (en) | 2018-03-16 | 2023-06-13 | Micron Technology, Inc. | Black box data recorder for autonomous driving vehicle |
| US11756353B2 (en) | 2018-06-18 | 2023-09-12 | Micron Technology, Inc. | Downloading system memory data in response to event detection |
| US11782605B2 (en) | 2018-11-29 | 2023-10-10 | Micron Technology, Inc. | Wear leveling for non-volatile memory using data write counters |
| US11373466B2 (en) | 2019-01-31 | 2022-06-28 | Micron Technology, Inc. | Data recorders of autonomous vehicles |
| US11410475B2 (en) | 2019-01-31 | 2022-08-09 | Micron Technology, Inc. | Autonomous vehicle data recorders |
| US11670124B2 (en) | 2019-01-31 | 2023-06-06 | Micron Technology, Inc. | Data recorders of autonomous vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201401876A (en) | 2014-01-01 |
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Application publication date: 20140115 |