CN109963103A - Low-power consumption kinescope method and device - Google Patents
Low-power consumption kinescope method and device Download PDFInfo
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- CN109963103A CN109963103A CN201711435004.2A CN201711435004A CN109963103A CN 109963103 A CN109963103 A CN 109963103A CN 201711435004 A CN201711435004 A CN 201711435004A CN 109963103 A CN109963103 A CN 109963103A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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Abstract
The present invention provides a kind of low-power consumption kinescope method and devices, wherein this method comprises: obtaining the raw image data of the video object by imaging sensor；Raw image data is converted to the picture signal of predetermined format by image signal processing unit；Picture signal by the predetermined format stored in memory pool, and video encoder is sent in the way of first in first out and is encoded, video encoder is in close state in the case where not triggering recording function, in running order in the case where triggering recording function.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 low-power consumption kinescope method and device.
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 low-power consumption kinescope methods, to reach low-power consumption standby in the feelings of limited electricity
Under condition, the effect on wrong preferably video recording opportunity is avoided, this method comprises:
The raw image data of the video object is obtained by imaging sensor；
The raw image data is converted to the picture signal of predetermined format by image signal processing unit；
Picture signal by the predetermined format stored in memory pool, and video volume is sent in the way of first in first out
Code device is encoded, wherein the video encoder is in close state in the case where not triggering recording function, is recorded in triggering
It is in running order in the case where picture function.
In one embodiment, in the picture signal of the predetermined format by being stored in memory pool according to first in first out
Mode is sent to after video encoder encoded, further includes:
It is video stream file by the image signal encoding of the predetermined format by the video encoder；
The video stream file is stored up by External memory equipment.
In one embodiment, the original image signal is the picture signal of RAW format.
In one embodiment, the picture signal of the predetermined format is the picture signal of yuv format.
In one embodiment, the picture signal of the predetermined format of scheduled duration is stored in the memory pool.
The embodiment of the invention also provides a kind of low-power consumption recording apparatus, to reach low-power consumption standby in limited electricity
In the case of, the effect on wrong preferably video recording opportunity is avoided, which includes:
Module is obtained, for obtaining the raw image data of the video object by imaging sensor；
Conversion module, for the raw image data to be converted to the figure of predetermined format by image signal processing unit
As signal；
Processing module, for the picture signal of the predetermined format by being stored in memory pool, and according to the side of first in first out
Formula is sent to video encoder and is encoded, wherein the video encoder is not in the case where triggering recording function in pass
Closed state, it is in running order in the case where triggering recording function.
In one embodiment, above-mentioned apparatus further include: coding module, for predetermined by what is stored in memory pool
The picture signal of format is sent to after video encoder encoded in the way of first in first out, passes through the Video coding
The image signal encoding of the predetermined format is video stream file by device；Memory module, for storing up institute by External memory equipment
State video stream file.
In one embodiment, the original image signal is the picture signal of RAW format.
In one embodiment, the picture signal of the predetermined format is the picture signal of yuv format.
In one embodiment, the picture signal of the predetermined format of scheduled duration is stored in memory pool.
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；
Fig. 6 is the structural block diagram of low-power consumption recording apparatus according to an embodiment of the present invention.
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.
Based on the same inventive concept, a kind of low-power consumption recording apparatus is additionally provided in the embodiment of the present invention, such as following reality
It applies described in example.Since the principle that low-power consumption recording apparatus solves the problems, such as is similar to low-power consumption kinescope method, low-power consumption video recording
The implementation of device may refer to the implementation of low-power consumption kinescope method, and overlaps will not be repeated.Used below, term is " single
The combination of the software and/or hardware of predetermined function may be implemented in member " or " module ".Although device described in following embodiment
It is preferably realized with software, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.Fig. 6
Be a kind of structural block diagram of the low-power consumption recording apparatus of the embodiment of the present invention, as shown in fig. 6, may include: obtain module 601,
Conversion module 602 and processing module 603, are below illustrated the structure.
Module 601 is obtained, for obtaining the raw image data of the video object by imaging sensor；
Conversion module 602, for the raw image data to be converted to predetermined format by image signal processing unit
Picture signal；
Processing module 603, for the picture signal of the predetermined format by being stored in memory pool, and according to first in first out
Mode is sent to video encoder and is encoded, wherein the video encoder is in the case where not triggering recording function
Closed state, it is in running order in the case where triggering recording function.
In one embodiment, above-mentioned apparatus can also include: coding module, for what is stored in passing through memory pool
The picture signal of predetermined format is sent to after video encoder encoded in the way of first in first out, passes through the video
The image signal encoding of the predetermined format is video stream file by encoder；Memory module, for passing through External memory equipment
Store up the video stream file.
In one embodiment, the original image signal can be the picture signal of RAW format.
In one embodiment, the picture signal of the predetermined format can be the picture signal of yuv format.
In one embodiment, the picture signal of the predetermined format of scheduled duration is stored in memory pool.
In another embodiment, a kind of software is additionally provided, the software is for executing above-described embodiment and preferred reality
Apply technical solution described in mode.
In another embodiment, a kind of storage medium is additionally provided, above-mentioned software is stored in the storage medium, it should
Storage medium includes but is not limited to: CD, floppy disk, hard disk, scratch pad memory etc..
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.
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 (10)
1. a kind of low-power consumption kinescope method characterized by comprising
The raw image data of the video object is obtained by imaging sensor；
The raw image data is converted to the picture signal of predetermined format by image signal processing unit；
Picture signal by the predetermined format stored in memory pool, and video encoder is sent in the way of first in first out
It is encoded, wherein the video encoder is in close state in the case where not triggering recording function, in triggering video recording function
It is in running order in the case where energy.
2. the method according to claim 1, wherein in the image letter of the predetermined format by being stored in memory pool
It number is sent in the way of first in first out after video encoder encoded, further includes:
It is video stream file by the image signal encoding of the predetermined format by the video encoder；
The video stream file is stored up by External memory equipment.
3. the method according to claim 1, wherein the original image signal is the picture signal of RAW format.
4. the method according to claim 1, wherein the picture signal of the predetermined format is the figure of yuv format
As signal.
5. pre- fixing the method according to claim 1, wherein storing the described of scheduled duration in the memory pool
The picture signal of formula.
6. a kind of low-power consumption recording apparatus characterized by comprising
Module is obtained, for obtaining the raw image data of the video object by imaging sensor；
Conversion module, for being believed the image that the raw image data is converted to predetermined format by image signal processing unit
Number；
Processing module for the picture signal of the predetermined format by storing in memory pool, and passes in the way of first in first out
It send to video encoder and is encoded, wherein the video encoder is not in the case where triggering recording function in closing shape
State, it is in running order in the case where triggering recording function.
7. device according to claim 6, which is characterized in that further include:
Coding module, for being transmitted in such a way that the picture signal of the predetermined format storing in memory pool is according to first in first out
It is view by the image signal encoding of the predetermined format by the video encoder after being encoded to video encoder
Frequency stream file；
Memory module, for storing up the video stream file by External memory equipment.
8. device according to claim 6, which is characterized in that the original image signal is the picture signal of RAW format.
9. device according to claim 6, which is characterized in that the picture signal of the predetermined format is the figure of yuv format
As signal.
10. device according to claim 6, which is characterized in that store the described predetermined of scheduled duration in the memory pool
The picture signal of format.
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| CN201711435004.2A CN109963103A (en) | 2017-12-26 | 2017-12-26 | Low-power consumption kinescope method and device |
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| CN201711435004.2A CN109963103A (en) | 2017-12-26 | 2017-12-26 | Low-power consumption kinescope method and device |
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Application publication date: 20190702 |