CN109963102A - Video recording system - Google Patents
Video recording system Download PDFInfo
- Publication number
- CN109963102A CN109963102A CN201711434982.5A CN201711434982A CN109963102A CN 109963102 A CN109963102 A CN 109963102A CN 201711434982 A CN201711434982 A CN 201711434982A CN 109963102 A CN109963102 A CN 109963102A
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- China
- Prior art keywords
- video encoder
- video
- external memory
- memory
- memory equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
-
- 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
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
The present invention provides a kind of video recording systems, this includes: imaging sensor, image signal processing unit, video encoder, External memory equipment, controller, wherein: the controller, it is connected with the video encoder and the External memory equipment, for in the case where not triggering recording function, it controls the video encoder and the External memory equipment is in close state, in the case where triggering recording function, controls the video encoder and the External memory equipment is in running order.Through the above scheme, it in the case where not triggering recording function, controls video encoder and External memory equipment is in close state, in the case where triggering recording function, video encoder and External memory equipment are just opened, to reduce power consumption.It is constantly in working condition, therefore the available image data in scheduled duration by control imaging sensor and image signal processing unit, to avoid missing desired Video content.
Description
Technical field
The present invention relates to equipment control technology field, in particular to a kind of video recording system.
Background technique
In view of being built-in power in many scene video recording equipments, it is limited to the capacity of battery, it generally can not be for a long time
Video recording.For this purpose, general mode of operation is the scene recorded a video in needs, video recording is just opened, it is usually controlled and locates as far as possible
In not video state, to save power consumption.
However, this mode of operation can have a problem that, be exactly for user, can not be pre- under many scenes
Know whether subsequent time needs to open video recording and carry out video record.In this way when having emergency case or more excellent content, make
User is then turned on recording function during this time, often misses preferable video recording opportunity.
In view of the above-mentioned problems, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of video recording system, to reach low-power consumption standby in the case where limited electricity,
The effect on wrong preferably video recording opportunity is avoided, which includes: imaging sensor, image signal processing unit, Video coding
Device, External memory equipment, controller, in which:
Described image sensor, for obtaining the raw image data of the video object；
Described image signal processing unit, is connected with described image sensor, for converting the raw image data
For the picture signal of predetermined format；
The video encoder is connected with described image signal processing unit, for believing the image of the predetermined format
Number it is encoded to video stream file；
The External memory equipment is connected with the video encoder, for storing the video stream file；
The controller is connected with the video encoder and the External memory equipment, for not triggering video recording function
It in the case where energy, controls the video encoder and the External memory equipment is in close state, in triggering recording function
In the case of, it controls the video encoder and the External memory equipment is in running order.
In one embodiment, above-mentioned video recording system further include: memory, with described image signal processing unit and institute
It states video encoder to be connected, the picture signal of the predetermined format for depositing scheduled duration, and at the video encoder
In the case where working condition, the picture signal of the predetermined format of storage is sent to the video encoder and is encoded.
In one embodiment, the memory is by way of first in first out to described in video encoder transmission
The picture signal of predetermined format.
In one embodiment, the memory space by adjusting the memory adjusts the size of the scheduled duration.
In one embodiment, the scheduled duration is 5 seconds to 10 seconds.
In one embodiment, the memory is the memory pool marked off from DRAM.
In embodiments of the present invention, a kind of video recording system and method are provided, in the case where not triggering recording function, control
Video encoder and External memory equipment processed are in close state, and in the case where triggering recording function, just open Video coding
Device and External memory equipment, to reduce power consumption.Work is constantly in by control imaging sensor and image signal processing unit
Make state, therefore the available image data in scheduled duration, to avoid missing desired Video content.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, not
Constitute limitation of the invention.In the accompanying drawings:
Fig. 1 is the structural block diagram of video recording system according to an embodiment of the present invention；
Fig. 2 is the method flow diagram of kinescope method according to an embodiment of the present invention；
Fig. 3 is another structural block diagram of video recording system according to an embodiment of the present invention；
Fig. 4 is the structural block diagram of the non-triggering state of video state according to an embodiment of the present invention；
Fig. 5 is the structural block diagram of video state according to an embodiment of the present invention triggering state.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, right below with reference to embodiment and attached drawing
The present invention is described in further details.Here, exemplary embodiment and its explanation of the invention is used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
In this example, a kind of video recording system is provided, as shown in Figure 1, may include: imaging sensor 101, picture signal
Processing unit 102, video encoder 103, External memory equipment 104, controller 105, in which:
Imaging sensor 101, for obtaining the raw image data of the video object；
Image signal processing unit 102 is connected with imaging sensor 101, predetermined for being converted to raw image data
The picture signal of format；
Video encoder 103 is connected with image signal processing unit 102, for by the image signal encoding of predetermined format
For video stream file；
External memory equipment 104 is connected, for storing video stream file with video encoder 103；
Controller 105 is connected with video encoder 103 and External memory equipment 104, for not triggering recording function
In the case of, it controls video encoder 103 and External memory equipment 104 is in close state, in the case where triggering recording function,
It controls video encoder 103 and External memory equipment 104 is in running order.
Further, in order to enable the image data of scheduled duration before current time can be prestored, above-mentioned video recording system is also
It may include: memory 106 (memory pool), be connected with described image signal processing unit 102 and the video encoder 103,
For depositing the picture signal of the predetermined format of scheduled duration, and the feelings in running order in the video encoder 103
Under condition, the picture signal of the predetermined format of storage is sent to the video encoder 103 and is encoded.
In one embodiment, memory can be transmitted by way of first in first out to the video encoder 103
The picture signal of the predetermined format.When realizing, scheduled duration can be adjusted by adjusting the memory space of memory
Size.Above-mentioned scheduled duration can be 5 seconds to 10 seconds.Above-mentioned memory pool can be the memory pool marked off from DRAM.
Based on this, a kind of low-power consumption kinescope method is additionally provided in this example, as shown in Fig. 2, may include steps of:
Step 201: the raw image data of the video object is obtained by imaging sensor；
Step 202: being believed the image that the raw image data is converted to predetermined format by image signal processing unit
Number；
Step 203: by the picture signal of the predetermined format stored in memory pool, and being transmitted in the way of first in first out
It being encoded to video encoder, wherein the video encoder is in close state in the case where not triggering recording function,
It is in running order in the case where triggering recording function.
After above-mentioned steps 203, the picture signal of the predetermined format can also be compiled by the video encoder
Code is video stream file；The video stream file is stored up by External memory equipment.
Above-mentioned original image signal can be the picture signal of RAW format, and the picture signal of above-mentioned predetermined format is YUV
The picture signal of format.
In one embodiment, the picture signal of the predetermined format of scheduled duration is stored in above-mentioned memory pool.
Specifically, can control in the following manner above-mentioned video recording system:
S1: user is received to the trigger action of the recording function of the video recording system on wearable device；
For example, can receive user to the pressing operation of preset control key；In response to the pressing operation, described in generation
Trigger action.
S2: in response to the trigger action, imaging sensor, image signal processing unit, video encoder and outer are controlled
It is in running order that portion stores equipment；
S3: user is received to the pausing operation of the recording function；
S4: it in response to the pausing operation, controls video encoder and External memory equipment is in close state, control figure
As sensor and image signal processing unit are in running order.
Specifically, the picture signal of the predetermined format stored in control memory is sent to view in the way of first in first out
Frequency encoder is encoded, and may include:
According to the size of the picture material in the memory, determine that video encoder reads the speed with coding image signal
Rate；It controls the video encoder and reads simultaneously coding image signal from the memory pool according to determining rate.
For example, controlling the video in the case that picture material stored in the memory pool is more than scheduled duration and compiling
Code device is read according to full speed and coding image signal；The picture material stored in the memory pool is less than the case where scheduled duration
Under, it controls the video encoder and is read according to speed identical with image-signal processor and coding image signal.
It, can be by when carrying out video recording system control that is, above-mentioned video recording system can work in two kinds of working conditions
It is carried out according to following steps:
S1: it determines the need for carrying out state switching to video recording system；
S2: in the case where determination needs to carry out state switching, the video recording system is switched into target by current state
State.
Specifically, the video recording system can be switched to global function state by low-power consumption pre-existing state；Alternatively, will be described
Video recording system switches to low power consumpting state by global function state.
In video recording system work in the case where low power consumpting state, video encoder and External memory equipment do not work, figure
As sensor, image signal processing unit and the work of first-in first-out memory pond；It works in video recording system in the feelings of global function state
Under condition, video encoder, External memory equipment, imaging sensor, image signal processing unit and first-in first-out memory Chi Dougong
Make.
For the memory pool in video recording system, the picture material of scheduled duration can be only saved.
In embodiments of the present invention, a kind of video recording system is provided, in the case where not triggering recording function, controls video
Encoder and External memory equipment are in close state, and in the case where triggering recording function, just open video encoder and outer
Portion stores equipment, to reduce power consumption.It is constantly in working condition by control imaging sensor and image signal processing unit,
Therefore the available image data in scheduled duration, to avoid missing desired Video content.
Upper video recording system and method are illustrated below with reference to a specific embodiment, it should be noted, however, that should
Specific embodiment does not constitute an undue limitation on the present application merely to the application is better described.
In this example, a kind of kinescope method of low-power consumption is provided, even if it is a certain that user can be made to have already been through
At the moment, the picture of (such as: 5 seconds~10 seconds) carries out video record when still can be to default before the moment.
In this example, a kind of video recording system is provided, as shown in figure 3, may include: imaging sensor, at picture signal
Unit, video encoder, External memory equipment and first-in first-out memory pond are managed, Video coding can be greatly decreased by the system
The power consumption of device and External memory equipment.
The video recording system provides two kinds of working conditions: low-power consumption pre-existing state and global function state, can by
A first-in first-out memory pond is hewed out in DRAM, as the bridge switched between two states.
Under normal circumstances, which is in low-power consumption pre-existing state, as shown in figure 4, only scheming in this state
Picture sensor and image signal processing unit are in running order, and video encoder and External memory equipment are all in closing shape
State.The yuv format picture signal of image signal processing unit output is stored in first-in first-out memory pond.Specifically, in order to more
It, can be in the resolution ratio and frame per second of low-power consumption pre-existing state reduction image for energy conservation.
The size in the first-in first-out memory pond in the video recording system can be set to the yuv format figure of storage 5 seconds~10 seconds
As signal, it is of course also possible to which as needed and actual conditions increase or reduce the first-in first-out memory pond.Work as first-in first-out memory
After pond is filled up, automatic covering state is entered, the image for being introduced into memory pool will preferentially be squeezed out memory pool.So circulation,
Can then guarantee to retain always in first-in first-out memory pond is nearest newest several seconds picture materials.
After user actively triggers recording function, which can be switched to global function by low-power consumption pre-existing state
State.
Under global function state, video encoder and External memory equipment can be entered working condition, such as Fig. 5 by closed state
Shown, video encoder is synchronized with image signal processing unit by first-in first-out memory pond: when first in first out memory pool
In picture material be more than 0.2 second when, video encoder can work as first in first out to read image at full speed and be encoded
When picture material in memory pool is less than or equal to 0.2 second, video encoder can be with close with image-signal processor
Speed is encoded.In this way, it not only can guarantee that first-in first-out memory pond will not be filled, but also can guarantee in first in first out
Sky will not be read by depositing pond.
Above-mentioned 0.2 second is only a kind of exemplary description, when specific implementation, can choose other numerical value, in this regard,
Do not apply being not construed as limiting.
After user actively stops recording function, which is switched to low-power consumption by global function state again and prestores shape
State, to save power consumption.
That is, to reduce equipment power dissipation in such a way that low-power consumption prestores, using first-in first-out memory Chi Laijin in upper example
Row buffering, so that two states are able to carry out switching.
Above-mentioned video recording system can be applied in wearable video camera, so that solving wearable video camera is limited to electricity
Tankage, the problem of can not be recorded a video for a long time.
Above-mentioned wearable video camera can exist in a variety of forms, for example, bracelet, cap etc., the application to this not
It limits.
It can be seen from the above description that the embodiment of the present invention realizes following technical effect: not triggering video recording function
It in the case where energy, controls video encoder and External memory equipment is in close state, in the case where triggering recording function,
Video encoder and External memory equipment are opened, to reduce power consumption.Pass through control imaging sensor and image signal process list
Member is constantly in working condition, therefore the available image data in scheduled duration, to avoid missing desired video recording
Content.
In the present specification, such as adjective as first and second can be only used for by an element or movement with it is another
One element or movement distinguish, without requiring or implying any actual this relationship or sequence.In the feelings that environment allows
Under condition, one in only element, component or step should not be interpreted as limited to referring to element or component or step (s), and can
To be the one or more etc. in element, component or step.
Obviously, those skilled in the art should be understood that each module of the above-mentioned embodiment of the present invention or each step can be with
It is realized with general computing device, they can be concentrated on a single computing device, or be distributed in multiple computing devices
On composed network, optionally, they can be realized with the program code that computing device can perform, it is thus possible to by it
Store and be performed by computing device in the storage device, and in some cases, can be held with the sequence for being different from herein
The shown or described step of row, perhaps they are fabricated to each integrated circuit modules or will be multiple in them
Module or step are fabricated to single integrated circuit module to realize.In this way, the embodiment of the present invention be not limited to it is any specific hard
Part and software combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the embodiment of the present invention can have various modifications and variations.All within the spirits and principles of the present invention, made
Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of video recording system characterized by comprising imaging sensor, image signal processing unit, video encoder, outer
Portion stores equipment, controller, in which:
Described image sensor, for obtaining the raw image data of the video object；
Described image signal processing unit, is connected with described image sensor, pre- for being converted to the raw image data
The picture signal for the formula that fixes；
The video encoder is connected with described image signal processing unit, for compiling the picture signal of the predetermined format
Code is video stream file；
The External memory equipment is connected with the video encoder, for storing the video stream file；
The controller is connected with the video encoder and the External memory equipment, for not triggering recording function
In the case of, it controls the video encoder and the External memory equipment is in close state, the case where triggering recording function
Under, it controls the video encoder and the External memory equipment is in running order.
2. system according to claim 1, which is characterized in that further include:
Memory is connected with described image signal processing unit and the video encoder, for depositing the described pre- of scheduled duration
The picture signal for the formula that fixes, and in the case where the video encoder is in running order, by the figure of the predetermined format of storage
It is encoded as signal is sent to the video encoder.
3. system according to claim 2, which is characterized in that the memory is by way of first in first out to the view
Frequency encoder transmits the picture signal of the predetermined format.
4. system according to claim 2, which is characterized in that described in the memory space adjusting by adjusting the memory
The size of scheduled duration.
5. system according to claim 2, which is characterized in that the scheduled duration is 5 seconds to 10 seconds.
6. system according to claim 2, which is characterized in that the memory is the memory pool marked off from DRAM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711434982.5A CN109963102A (en) | 2017-12-26 | 2017-12-26 | Video recording system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711434982.5A CN109963102A (en) | 2017-12-26 | 2017-12-26 | Video recording system |
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| CN109963102A true CN109963102A (en) | 2019-07-02 |
Family
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| CN104113685A (en) * | 2013-04-16 | 2014-10-22 | 三星电子株式会社 | Digital Photographing Apparatus And Method Of Controlling The Same |
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- 2017-12-26 CN CN201711434982.5A patent/CN109963102A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1745574A (en) * | 2002-12-06 | 2006-03-08 | 日本电气株式会社 | The portable terminal of video camera is equipped with |
| CN2867766Y (en) * | 2006-03-15 | 2007-02-07 | 罗文杰 | Inserted photograph device used for obtaining evidence |
| US20110134274A1 (en) * | 2007-02-23 | 2011-06-09 | Richard Lewis | Camera, encoder, and modulator in same enclosure |
| CN101516032A (en) * | 2009-03-13 | 2009-08-26 | 深圳市泛海三江电子有限公司 | Extraction processing method of video data |
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