CN109862259A - A kind of imaging sensor synchronous configuration method and device - Google Patents
A kind of imaging sensor synchronous configuration method and device Download PDFInfo
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- CN109862259A CN109862259A CN201811637695.9A CN201811637695A CN109862259A CN 109862259 A CN109862259 A CN 109862259A CN 201811637695 A CN201811637695 A CN 201811637695A CN 109862259 A CN109862259 A CN 109862259A
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Abstract
It includes: to judge whether the time sequence status of imaging sensor enters blanking zone that the embodiment of the present application, which provides a kind of imaging sensor synchronous configuration method and device, imaging sensor synchronous configuration method,；If so, register configuration parameter needed for obtaining pre-stored next frame image in imaging sensor driving；Register needed for configuring the next frame image in the blanking zone according to the configuration parameter.Image sensor chip of the application for no grouping setting function, by the blanking zone rapid configuration associated register for transmitting data in imaging sensor, it can guarantee that all related registers enter into force in the display of next frame image, solve the technical problem for not supporting group register group of the imaging sensor of write-in that cannot synchronize the inconsistent equal displays exception of the caused brightness of image that comes into force.
Description
Technical field
This application involves imaging sensor configuration technology field more particularly to a kind of imaging sensor synchronous configuration method and
Device.
Background technique
Light image on photosurface can be converted to the electric signal with light image at corresponding proportion relationship by imaging sensor, extensively
Apply the important component of the digital camera in digital camera and other electro-optical devices in ground.Control to imaging sensor
System mainly includes that main control chip reads and writes phase by I2C (Inter-Integrated Circuit, built-in integrated circuit) interface
The imaging sensor register answered, to realize the various configurations to imaging sensor.The register of imaging sensor is generally divided into
16 and 8, the function of certain imaging sensors needs to cooperate by multiple registers to realize jointly.
In the prior art, the main control chip support group write-in functions of parts of images sensor, i.e., the relevant deposit of function
Device is included in a register group, and the function of each register in the register group is then arranged while working.
But at present there is also the imaging sensor of part, main control chip does not support a group write-in functions, this results in function
Identical or relevant register, need by I2C interface carry out series arrangement, due to these registers be can come into force, and
Series arrangement causes the different register configuration deadlines different, may cause register functions that cannot synchronize life in this way
Effect causes display abnormal, and common display has image extremely, and substantially brightness is inconsistent etc. up and down for bright dark switching or image suddenly
Phenomenon.
Summary of the invention
This application provides a kind of imaging sensor synchronous configuration method and devices, are posted with solving the multiple of imaging sensor
Storage synchronizes the problem of configuration.
In a first aspect, this application provides a kind of imaging sensor synchronous configuration methods, this method comprises:
Judge whether the time sequence status of imaging sensor enters blanking zone；
If so, register configuration parameter needed for obtaining pre-stored next frame image in imaging sensor driving；
Register needed for configuring the next frame image in the blanking zone according to the configuration parameter.
Optionally, whether the time sequence status for judging imaging sensor enters blanking zone, comprising: judges imaging sensor
Whether by the data end of transmission of current frame image.
It is optionally, described to judge imaging sensor whether by the data end of transmission of current frame image, comprising:
The level state of real-time monitoring imaging sensor vertical synchronizing signal；
Low level is changed to by high level according to the level state, judges whether described image sensor generates most after image
Plain interrupt signal；
The last pixel interrupt signal is generated according to described image sensor, determines the timing shape of described image sensor
State enters blanking zone.
Optionally, register configuration needed for obtaining pre-stored next frame image in the driving from imaging sensor is joined
Number, comprising:
Start call back function according to the last pixel interrupt signal；
Start imaging sensor configuration task according to the call back function；
Pre-stored next frame image institute is obtained from imaging sensor driving according to described image sensor configuration task
The register configuration parameter needed.
Optionally, it is described the next frame image is configured in the blanking zone according to the configuration parameter needed for deposit
Device, comprising:
The main control chip for sending the configuration parameter to described image sensor is driven by I2C；
Deposit needed for the main control chip configures the next frame image in the blanking zone according to the configuration parameter
Device.
Optionally, whether the time sequence status for judging imaging sensor enters blanking zone, before further include: by each frame
Register configuration parameter needed for image is stored to imaging sensor and is driven.
Second aspect, this application provides a kind of synchronous configuration device of imaging sensor, which includes: blanking zone judgement
Module, register configuration parameter acquisition module and register configuration module, wherein
The blanking zone judgment module, for judging whether the time sequence status of imaging sensor enters blanking zone；
The register configuration parameter acquisition module is connect with the blanking zone judgment module, for being passed according to described image
Whether the time sequence status of sensor enters blanking zone, obtains in imaging sensor driving and posts needed for pre-stored next frame image
Storage configuration parameter；
The register configuration module is connect with the register configuration parameter acquisition module, for being joined according to the configuration
Register needed for number configures the next frame image in the blanking zone.
Optionally, the blanking zone judgment module includes vertical synchronizing signal monitoring unit, last pixel interrupt signal prison
Survey unit and output unit, wherein
The vertical synchronizing signal monitoring unit, the level shape for real-time monitoring imaging sensor vertical synchronizing signal
State；
The last pixel interrupt signal monitoring unit is connect with the vertical synchronizing signal monitoring unit, for according to institute
It states level state and low level is changed to by high level, judge whether described image sensor generates last pixel interrupt signal；
The output unit is connect with the last pixel interrupt signal monitoring unit, for according to described image sensor
The last pixel interrupt signal is generated, determines that the time sequence status of described image sensor enters blanking zone.
Optionally, the register configuration parameter acquisition module includes call back function unit, imaging sensor configuration task
Unit and configuration parameter acquiring unit, wherein
The call back function unit, for starting call back function according to the last pixel interrupt signal；
Described image sensor configuration task unit is connect with the call back function unit, for according to the call back function
Start imaging sensor configuration task；
The configuration parameter acquiring unit is connect with described image sensor configuration task unit, for according to described image
Sensor configuration task register configuration parameter needed for obtaining pre-stored next frame image in imaging sensor driving.
It optionally, further include pre-stored module, the pre-stored module is connect with the blanking zone judgment module, and being used for will
Register configuration parameter needed for each frame image is stored to imaging sensor and is driven.
The beneficial effect of imaging sensor synchronous configuration method and device provided by the present application includes:
Imaging sensor synchronous configuration method provided by the embodiments of the present application passes the image of no grouping setting function
Sensor chip, it is aobvious in next frame image by transmitting the blanking zone rapid configuration associated register of data in imaging sensor
It can guarantee that all related registers enter into force when showing, solve and do not support a group register group for the imaging sensor of write-in
The inconsistent technical problem for waiting displays exception of brightness of image caused by coming into force cannot be synchronized.Image provided by the embodiments of the present application passes
Sensor synchronizes configuration device, utilizes the synchronous method of completing the square of imaging sensor provided by the embodiments of the present application
Configuration register is set, solves the technical issues of register group cannot come into force simultaneously.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without any creative labor,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of vision sensor data transmission time sequence figure provided by the embodiments of the present application；
Fig. 2 is a kind of flow diagram of imaging sensor synchronous configuration method provided by the embodiments of the present application；
Fig. 3 is a kind of flow diagram of blanking zone judgment method provided by the embodiments of the present application；
Fig. 4 is a kind of flow diagram of register configuration parameter acquiring method provided by the embodiments of the present application；
Fig. 5 is a kind of flow diagram of register configuration method provided by the embodiments of the present application；
Fig. 6 is a kind of structural schematic diagram of the synchronous configuration device of imaging sensor provided by the embodiments of the present application.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is only some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, the common skill in this field
The application protection all should belong in art personnel every other embodiment obtained without making creative work
Range.
It is a kind of vision sensor data transmission time sequence figure provided by the embodiments of the present application, as shown in Figure 1, T referring to Fig. 1
Indicate clock signal, V indicates that V sync (Vertical synchronization, vertical synchronization) signal, D indicate Data (number
According to), f1 indicates that first frame image, f2 indicate that the second frame image, f3 indicate that third frame image, f4 indicate the 4th frame image, wherein
First frame, the second frame, third frame and the 4th frame are counted according to since the t0 moment.
As can be seen from Figure 1, within the first frame timing time t0-t2 time, data are in t1 moment end of transmission, t1-t2 time
Image data is not transmitted within the blanking zone P time for a blanking zone P.
The embodiment of the present application makes next frame image show it by register needed for configuring next frame image in blanking zone
All configuration finishes preceding required register, so that it is abnormal to avoid next frame image from generating, specific implementation method is referring to fig. 2.
Fig. 2 is a kind of flow diagram of imaging sensor synchronous configuration method provided by the embodiments of the present application, such as Fig. 2 institute
Show, imaging sensor synchronous configuration method provided by the embodiments of the present application, specifically includes the following steps:
Step S1OO: register configuration parameter needed for each frame image is stored to imaging sensor and is driven.
Specifically, register configuration parameter needed for imaging sensor is needed each frame image to be shown is stored to image
In sensor driving, then non-obstruction is directly returned.For non-blocking system before call result is not immediately available, function will not
Block current thread, the I/O system of return can be carved.
Step S110: judge whether the time sequence status of imaging sensor enters blanking zone.
Specifically, the method for judging whether the time sequence status of imaging sensor enters blanking zone includes: judgement image sensing
Whether device is sentenced the data end of transmission of current frame image according to imaging sensor by the data end of transmission of current frame image
Surely enter blanking zone；According to imaging sensor not by the data end of transmission of current frame image, judgement does not enter into blanking zone.
Whether the judgment method of end of transmission is provided by the embodiments of the present application one referring to Fig. 3 to the data of current frame image
The flow diagram of kind blanking zone judgment method, as shown in figure 3, blanking zone judgment method provided by the embodiments of the present application, specifically
The following steps are included:
Step S111: the level state of real-time monitoring imaging sensor vertical synchronizing signal.
Vertical synchronizing signal is obtained by detection V sync signal wire.As shown in Figure 1, when vertical synchronizing signal is by high level
When changing to low level, vertical synchronization interruption can be generated, i.e., at t0 moment, t1 moment, vertical synchronization interruption can be all generated, in t0
In moment, t1-t2 period, it is able to detect that vertical synchronization interrupt signal.
According to the level state of vertical synchronizing signal, it can further judge whether data transmission enters next frame image data
Blanking zone before transmission, therefore, the embodiment of the present application real-time monitoring vertical synchronizing signal is deposited with realizing to configure in blanking zone
Device.
Step S112: low level is changed to by high level according to the level state, whether judges described image sensor
Generate last pixel interrupt signal.
During monitoring vertical synchronizing signal, whether real-time judge vertical synchronizing signal by high level changes to low electricity
It is flat, if it is, need further to judge whether described image sensor generates last pixel interrupt signal, if it is not, then after
The continuous step S111 that executes is monitored.
Step S113: generating the last pixel interrupt signal according to described image sensor, determines described image sensing
The time sequence status of device enters blanking zone.
Imaging sensor generates last pixel interrupt signal, then it represents that and the data of current frame image are transmitted, thus
Blanking zone is transferred into data.
Step S120: if so, register needed for obtaining pre-stored next frame image in imaging sensor driving
Configuration parameter.
Specifically, imaging sensor enters after the blanking zone of data transmission, start the register of next frame image at once
Configuration process, to ensure to finish register configuration before the transmission of next frame image data starts.
Register configuration parameter needed for next frame image is stored in imaging sensor driving, is driven from imaging sensor
The method for obtaining register configuration parameter is a kind of register configuration parameter acquisition side provided by the embodiments of the present application referring to fig. 4
The flow diagram of method, as shown in figure 4, register configuration parameter acquiring method provided by the embodiments of the present application, specifically include with
Lower step:
Step S121: call back function is started according to last pixel interrupt signal.
Step S122: imaging sensor configuration task is started according to call back function.
Step S123: pre-stored next frame figure is obtained from imaging sensor driving according to imaging sensor configuration task
As required register configuration parameter.
In the present embodiment, call back function is the call back function that last pixel is interrupted, and starts image sensing using call back function
Device configuration task carries out the configuration flow of sensor in imaging sensor configuration task, and well arranged, execution efficiency is high.
Step S130: register needed for configuring next frame image in blanking zone according to configuration parameter.
Specifically, being a kind of flow diagram of register configuration method provided by the embodiments of the present application, such as referring to Fig. 5
Shown in Fig. 5, register configuration method provided by the embodiments of the present application, specifically includes the following steps:
Step S131: the main control chip for sending configuration parameter to imaging sensor is driven by I2C.
Step S132: register needed for main control chip configures next frame image in blanking zone according to configuration parameter.
In the present embodiment, in tasklet (imaging sensor configuration task) thread, realizes and image is controlled by I2C
Sensor, specifically by call imaging sensor update register function, be temporarily stored in imaging sensor drive in next frame
The configuration parameter of image is updated by the interface that I2C drives to image sensor chip, is realized and is deposited to needed for next frame image
The configuration of device.
It is a kind of structural schematic diagram of the synchronous configuration device of imaging sensor provided by the embodiments of the present application, such as referring to Fig. 6
Shown in Fig. 6, the synchronous configuration device of the imaging sensor that embodiment provides, including pre-stored module, blanking zone judgment module, deposit
Device configuration parameter obtains module, register configuration module.
Specifically, pre-stored module is connect with blanking zone judgment module, for matching register needed for each frame image
Parameter is set to store to imaging sensor driving.
Blanking zone judgment module, for judging whether the time sequence status of imaging sensor enters blanking zone.Blanking zone judgement
Module includes vertical synchronizing signal monitoring unit, last pixel interrupt signal monitoring unit and output unit.
Synchronous signal obtaining unit, the level state for real-time monitoring imaging sensor vertical synchronizing signal；Most after image
Plain interrupt signal monitoring unit is connect with the vertical synchronizing signal monitoring unit, is used for according to the level state by high level
Low level is changed to, judges whether described image sensor generates last pixel interrupt signal；Output unit and the most after image
Plain interrupt signal monitoring unit connection determines institute for generating the last pixel interrupt signal according to described image sensor
The time sequence status for stating imaging sensor enters blanking zone.
Register configuration parameter acquisition module is connect with blanking zone judgment module, for the timing shape according to imaging sensor
Whether state enters blanking zone, and register configuration needed for obtaining pre-stored next frame image in imaging sensor driving is joined
Number.Register configuration parameter acquisition module includes that call back function unit, imaging sensor configuration task unit and configuration parameter obtain
Take unit, call back function unit, for starting call back function according to last pixel interrupt signal；Imaging sensor configuration task list
Member is connect with call back function unit, for starting imaging sensor configuration task according to call back function；Configuration parameter acquiring unit
It is connect with imaging sensor configuration task unit, for being obtained from imaging sensor driving according to imaging sensor configuration task
Register configuration parameter needed for pre-stored next frame image.
Register configuration module is connect with register configuration parameter acquisition module, for being matched according to configuration parameter in blanking zone
Register needed for setting next frame image.Register configuration module includes configuration parameter transmission unit and register configuration unit,
Configuration parameter transmission unit, for sending I2C driving for configuration parameter；Register configuration unit, for according to configuration parameter
Register needed for configuring next frame image in blanking zone.
As seen from the above-described embodiment, imaging sensor synchronous configuration method provided by the embodiments of the present application, for not dividing
The image sensor chip of group setting function, the associated deposit of blanking zone rapid configuration by transmitting data in imaging sensor
Device can guarantee that all related registers enter into force in the display of next frame image, solve and not support a group figure for write-in
As the register group of sensor cannot synchronize come into force caused by the inconsistent equal displays exception of brightness of image technical problem.The application
Embodiment interrupts to determine that imaging sensor transmits the blanking zone of data by last pixel, according to the vertical of transmission image data
Synchronization signal realizes the time point for accurately calculating register group action, provides accurately time ginseng for image processing algorithm
It examines；Start imaging sensor configuration task thread in the call back function that last pixel is interrupted, is appointed using imaging sensor configuration
The imaging sensor parameter that thread collection application layer of being engaged in configures, is then transported on these parameters and drives to I2C；The embodiment of the present application is also
Realize calling of the I2C driving in traps processing.The synchronous configuration device of imaging sensor provided by the embodiments of the present application, benefit
Configuration register is set with the synchronous method of completing the square of imaging sensor provided by the embodiments of the present application, is solved
The technical issues of register group cannot come into force simultaneously.
Since embodiment of above is that reference is combined into row illustrates, between different embodiments on other modes
Part having the same, identical, similar part may refer to each other between each embodiment in this specification.Herein no longer in detail
It is thin to illustrate.
It should be noted that in the present specification, the relational terms of such as " first " and " second " or the like are used merely to
It distinguishes one entity or operation from another entity or operation, and not necessarily requires or imply these entities or operation
Between there are any this actual relationship or sequences.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the circuit structure, article or the equipment that include a series of elements not only include those
Element, but also including other elements that are not explicitly listed, or further include for this circuit structure, article or equipment
Intrinsic element.In the absence of more restrictions, the element for thering is sentence "including a ..." to limit, it is not excluded that
There is also other identical elements in circuit structure, article or equipment including the element.
Those skilled in the art will readily occur to its of the application after considering specification and practicing the disclosure invented here
His embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
Person's adaptive change follows the general principle of the application and including the undocumented common knowledge in the art of the application
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the application are wanted by right
The content asked is pointed out.
Above-described the application embodiment does not constitute the restriction to the application protection scope.
Claims (10)
1. a kind of imaging sensor synchronous configuration method characterized by comprising
Judge whether the time sequence status of imaging sensor enters blanking zone；
If so, register configuration parameter needed for obtaining pre-stored next frame image in imaging sensor driving；
Register needed for configuring the next frame image in the blanking zone according to the configuration parameter.
2. imaging sensor synchronous configuration method as described in claim 1, which is characterized in that the judgement imaging sensor
Whether whether time sequence status enters blanking zone, comprising: judge imaging sensor by the data end of transmission of current frame image.
3. imaging sensor synchronous configuration method as claimed in claim 2, which is characterized in that the judgement imaging sensor is
The no data end of transmission by current frame image, comprising:
The level state of real-time monitoring imaging sensor vertical synchronizing signal；
Low level is changed to by high level according to the level state, judges whether described image sensor generates in last pixel
Break signal；
Generate the last pixel interrupt signal according to described image sensor, determine the time sequence status of described image sensor into
Enter blanking zone.
4. imaging sensor synchronous configuration method as claimed in claim 3, which is characterized in that described to be driven from imaging sensor
In obtain pre-stored next frame image needed for register configuration parameter, comprising:
Start call back function according to the last pixel interrupt signal；
Start imaging sensor configuration task according to the call back function；
According to described image sensor configuration task needed for obtaining pre-stored next frame image in imaging sensor driving
Register configuration parameter.
5. imaging sensor synchronous configuration method as described in claim 1, which is characterized in that described according to the configuration parameter
Register needed for configuring the next frame image in the blanking zone, comprising:
The main control chip for sending the configuration parameter to described image sensor is driven by I2C；
Register needed for the main control chip configures the next frame image in the blanking zone according to the configuration parameter.
6. imaging sensor synchronous configuration method as described in claim 1, which is characterized in that the judgement imaging sensor
Whether time sequence status enters blanking zone, before further include: stores register configuration parameter needed for each frame image to image
Sensor driving.
7. a kind of synchronous configuration device of imaging sensor characterized by comprising blanking zone judgment module, register configuration ginseng
Number obtains module and register configuration module, wherein
The blanking zone judgment module, for judging whether the time sequence status of imaging sensor enters blanking zone；
The register configuration parameter acquisition module is connect with the blanking zone judgment module, for according to described image sensor
Time sequence status whether enter blanking zone, from imaging sensor driving in obtain pre-stored next frame image needed for register
Configuration parameter；
The register configuration module is connect with the register configuration parameter acquisition module, for being existed according to the configuration parameter
Register needed for the blanking zone configures the next frame image.
8. the synchronous configuration device of imaging sensor as claimed in claim 7, which is characterized in that the blanking zone judgment module packet
Include vertical synchronizing signal monitoring unit, last pixel interrupt signal monitoring unit and output unit, wherein
The vertical synchronizing signal monitoring unit, the level state for real-time monitoring imaging sensor vertical synchronizing signal；
The last pixel interrupt signal monitoring unit is connect with the vertical synchronizing signal monitoring unit, for according to the electricity
Level state changes to low level by high level, judges whether described image sensor generates last pixel interrupt signal；
The output unit is connect with the last pixel interrupt signal monitoring unit, for being generated according to described image sensor
The last pixel interrupt signal, determines that the time sequence status of described image sensor enters blanking zone.
9. the synchronous configuration device of imaging sensor as claimed in claim 8, which is characterized in that the register configuration parameter obtains
Modulus block includes call back function unit, imaging sensor configuration task unit and configuration parameter acquiring unit, wherein
The call back function unit, for starting call back function according to the last pixel interrupt signal；
Described image sensor configuration task unit is connect with the call back function unit, for being started according to the call back function
Imaging sensor configuration task；
The configuration parameter acquiring unit is connect with described image sensor configuration task unit, for being sensed according to described image
Device configuration task register configuration parameter needed for obtaining pre-stored next frame image in imaging sensor driving.
10. the synchronous configuration device of imaging sensor as claimed in claim 7, which is characterized in that further include pre-stored module, institute
It states pre-stored module to connect with the blanking zone judgment module, for storing register configuration parameter needed for each frame image
It is driven to imaging sensor.
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