CN108156375B - A kind of clock automatic calibrating method - Google Patents
A kind of clock automatic calibrating method Download PDFInfo
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- CN108156375B CN108156375B CN201711438087.0A CN201711438087A CN108156375B CN 108156375 B CN108156375 B CN 108156375B CN 201711438087 A CN201711438087 A CN 201711438087A CN 108156375 B CN108156375 B CN 108156375B
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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
- H04N23/80—Camera processing pipelines; Components thereof
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- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G5/00—Setting, i.e. correcting or changing, the time-indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
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- Facsimile Image Signal Circuits (AREA)
Abstract
The present invention provides a kind of clock automatic calibrating method, the image information of standard time clock and clock to be calibrated is identified using image collecting device and central control unit, the image of standard time clock and clock to be calibrated after image enhancement processing is compared in image comparison module, if inconsistent, then the time is adjusted to the time consistency with standard time clock by n clocks to be calibrated of control module control, clock automatic calibrating method includes a standard time clock, n clocks to be calibrated, image collecting device and central processing unit, n is the positive integer greater than 1, central control unit includes image processing module, image comparison module and control module, image processing module, image comparison module and control module are sequentially connected, image collecting device is connected with image processing module, control module is connected with clock to be calibrated.
Description
Technical field
The present invention relates to intelligence test field more particularly to a kind of clock automatic calibrating methods.
Background technique
Clock is that a kind of common timer, people record the time by it in life.Clock be widely used in school,
The work and study such as factory, unit place is used for timing, and the timing uniformity of each clock is to maintain work and study normal order
Fundamental, and be the effective means for ensureing each clock timing uniformity to clock alignment, currently, the calibration to clock is main
It is to be read out to the temporal information of standard time clock, then clock to be calibrated is adjusted according to the temporal information of reading, with
The time of the time and standard time clock that make clock to be calibrated are consistent, still, past at the time of reading due to the limitation of reading accuracy
Toward biggish error can be generated, cause the temporal information precision of clock to be calibrated not high.
Summary of the invention
Therefore, in order to overcome the above problem, the present invention provides a kind of clock automatic calibrating method, utilizes image collecting device
It is identified with image information of the central control unit to standard time clock and clock to be calibrated, image comparison module is to by image
The image of enhancing treated standard time clock and clock to be calibrated is compared, if inconsistent, control module controls n to school
Time is adjusted to the time consistency with standard time clock by punctual clock.
Clock automated calibration system includes a standard time clock, n clock, image collecting device and centres to be calibrated
Manage device, n is positive integer greater than 1, wherein the central control unit include image processing module, image comparison module with
And control module, described image processing module, described image contrast module and the control module are sequentially connected, described image
Acquisition device is connected with described image processing module, and the control module is connected with the clock to be calibrated；
A kind of clock automatic calibrating method according to the present invention includes the following steps:
Step 1: the standard time clock and n clocks to be calibrated connects, make described in the standard time clock and n to
Calibration clock connects one to one with n+1 described image acquisition device respectively；
Step 2: the image information of the standard time clock and the clock to be calibrated is acquired using described image acquisition device,
And described image information is transmitted to described image processing module；
Step 3: using described image processing module will by described image treated the standard time clock and it is described to
The image transmitting of clock is calibrated to described image contrast module, described image contrast module is to by described image treated institute
The image for stating standard time clock and the clock to be calibrated is compared, and obtains comparison result；
Step 4: if the comparison result be by described image treated the standard time clock and it is described to be calibrated when
The image of clock is consistent, then return step 2, if comparison result be by described image treated the standard time clock and it is described to
The image for calibrating clock is inconsistent, then described n clocks to be calibrated of control module control will be adjusted to and the standard time
The time consistency of clock.
In step 2, described image processing module to the image informations of the standard time clock and n clocks to be calibrated into
Row image enhancement processing, specifically comprises the following steps:
Step 21: the image for the standard time clock and the n clock to be calibrated that described image acquisition device is acquired
It is defined as two-dimensional function f (x, y), wherein x, y are space coordinates, carry out brightness adjustment to image f (x, y): after brightness adjustment
Image, r is constant；
Step 22: the intensity value ranges of above-mentioned image g (x, y) are [a, b], and the intensity value ranges of image g (x, y) are extended to
[c, d], wherein a, b, c, d are constant, then transformed two-dimensional image function is h (x, y), wherein
；
Step 23: increasing the tonal range of image h (x, y), exponential transform, transformed image are carried out to image h (x, y)
Two-dimensional function is p (x, y), wherein, m, k, q are custom parameters；
Step 24: above-mentioned image p (x, y) is filtered, filtered two-dimensional image function is q (x, y),
In,
。
Compared with prior art, the present invention have it is following the utility model has the advantages that
(1) it is treated in the clock automatic calibrating method provided by the invention based on image comparison using the mode of image comparison
Calibration clock is calibrated, the temporal information of acquisition standard time clock that can be more accurate, so that the time of clock to be calibrated believes
It ceases consistent with the temporal information of standard time clock；
(2) in the clock automatic calibrating method provided by the invention based on image comparison, image processing module is to acquisition
Image carries out image enhancement processing, can efficiently, quickly extract the image information of clock and standard time clock to be calibrated, can be improved pair
The reading accuracy of clock time information efficiently reduces erroneous judgement and happens.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is clock automated calibration system functional block diagram of the invention；
Fig. 2 is the functional block diagram of central processing unit of the invention.
Specific embodiment
Clock automatic calibrating method of the invention is described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, the present invention provides a kind of clock automatic calibrating method, image collecting device and center control dress are utilized
It sets and the image information of standard time clock and clock to be calibrated is identified, image comparison module is to after image enhancement processing
The image of standard time clock and clock to be calibrated is compared, if inconsistent, control module controls n clocks to be calibrated for the time
It is adjusted to the time consistency with standard time clock.
Clock automated calibration system includes a standard time clock, n clock, image collecting device and centres to be calibrated
Device is managed, n is the positive integer greater than 1；
Specifically, standard time clock is connected with n clocks to be calibrated, and standard time clock and n clocks to be calibrated are a with n+1 respectively
Image collecting device connects one to one, and image collecting device is used to acquire the image information of standard time clock and clock to be calibrated,
And image information is transmitted to central processing unit, central processing unit is adopted with standard time clock, clock to be calibrated and image respectively
Image information is carried out image procossing by acquisition means connection, central processing unit, and by the clock to be calibrated after image procossing
Image information and the image information of standard time clock be compared, carry out calibration process to treat prover time.
Specifically, as shown in Fig. 2, central control unit includes image processing module, image comparison module and control mould
Block, image processing module, image comparison module and control module are sequentially connected, and image collecting device and image processing module connect
It connects, control module is connected with clock to be calibrated.
Specifically, clock automatic calibrating method includes the following steps:
Step 1: the standard time clock and n clocks to be calibrated connects, make described in the standard time clock and n to
Calibration clock connects one to one with n+1 described image acquisition device respectively；
Step 2: the image information of the standard time clock and the clock to be calibrated is acquired using described image acquisition device,
And described image information is transmitted to described image processing module；
Step 3: using described image processing module will by described image treated the standard time clock and it is described to
The image transmitting of clock is calibrated to described image contrast module, described image contrast module is to by described image treated institute
The image for stating standard time clock and the clock to be calibrated is compared, and obtains comparison result；
Step 4: if the comparison result be by described image treated the standard time clock and it is described to be calibrated when
The image of clock is consistent, then return step 2, if comparison result be by described image treated the standard time clock and it is described to
The image for calibrating clock is inconsistent, then described n clocks to be calibrated of control module control will be adjusted to and the standard time
The time consistency of clock
Specifically, in step 2, image processing module changes the image information use of standard time clock and n clocks to be calibrated
Into algorithm for image enhancement carry out image enhancement processing, specifically comprise the following steps:
Step 21: being two-dimentional letter by the image definition of the standard time clock of image acquisition device and n clocks to be calibrated
Number f (x, y), wherein x, y are space coordinates, carry out brightness adjustment: the image after brightness adjustment to image f (x, y), r is constant；
Step 22: the intensity value ranges of above-mentioned image g (x, y) are [a, b], and the intensity value ranges of image g (x, y) are extended to
[c, d], wherein a, b, c, d are constant, then transformed two-dimensional image function is h (x, y), wherein
；
Step 23: increasing the tonal range of image h (x, y), exponential transform, transformed image are carried out to image h (x, y)
Two-dimensional function is p (x, y), wherein, m, k, q are custom parameters；
Step 24: above-mentioned image p (x, y) is filtered, filtered two-dimensional image function is q (x, y),
In,
。
Above-mentioned improved image enhancement processing algorithm can the clear, hour hands, minute hand and the second hand that accurately identify clock, to obtain
Accurate clock time information.
Specifically, by the image transmitting of standard time clock and clock to be calibrated after image enhancement processing to image comparison
The image of standard time clock and clock to be calibrated after image enhancement processing is compared in module, image comparison module, if
Inconsistent, then the time is adjusted to the time consistency with standard time clock by n clocks to be calibrated of control module control.
It should be noted last that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although ginseng
It is described the invention in detail according to embodiment, those skilled in the art should understand that, to technical side of the invention
Case is modified or replaced equivalently, and without departure from the spirit and scope of technical solution of the present invention, should all be covered in the present invention
Scope of the claims in.
Claims (1)
1. a kind of clock automatic calibrating method, which is characterized in that clock automated calibration system include a standard time clock, n to
Clock, image collecting device and central processing unit are calibrated, n is the positive integer greater than 1, wherein the central processing unit
Including image processing module, image comparison module and control module, described image processing module, described image contrast module with
And the control module is sequentially connected, described image acquisition device is connected with described image processing module, the control module and
The clock connection to be calibrated, which is characterized in that the clock automatic calibrating method includes the following steps:
Step 1: the standard time clock being connected with the n clocks to be calibrated, keeps the standard time clock and n a described to be calibrated
Clock connects one to one with n+1 described image acquisition device respectively；
Step 2: the image information of the standard time clock and the clock to be calibrated is acquired using described image acquisition device, and will
Described image information is transmitted to described image processing module；
Step 3: will be by described image treated the standard time clock and described to be calibrated using described image processing module
The image transmitting of clock is to described image contrast module, and described image contrast module is to by described image treated the mark
The image of punctual clock and the clock to be calibrated is compared, and obtains comparison result；
Step 4: if the comparison result is by described image treated the standard time clock and the clock to be calibrated
Image is consistent, then return step 2, if comparison result is by described image treated the standard time clock and described to be calibrated
The image of clock is inconsistent, then described n clocks to be calibrated of control module control will be adjusted to and the standard time clock time
Time consistency；
Wherein, in the step 2, image of the described image processing module to the standard time clock and the n clocks to be calibrated
Information carries out image enhancement processing, specifically comprises the following steps:
Step 21: the image definition for the standard time clock and the n clock to be calibrated that described image acquisition device is acquired
For two-dimensional function f (x, y), wherein x, y are space coordinates, carry out brightness adjustment: the image after brightness adjustment to image f (x, y), r is constant；
Step 22: the intensity value ranges of above-mentioned image g (x, y) be [a, b], the intensity value ranges of image g (x, y) be extended to [c,
D], wherein a, b, c, d are constant, then transformed two-dimensional image function is h (x, y), wherein
；
Step 23: increasing the tonal range of image h (x, y), exponential transform, transformed two-dimensional image are carried out to image h (x, y)
Function is p (x, y), wherein, m, k, q are custom parameters；
Step 24: above-mentioned image p (x, y) being filtered, filtered two-dimensional image function is q (x, y), wherein。
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393419A (en) * | 2008-10-27 | 2009-03-25 | 深圳华为通信技术有限公司 | Terminal and time collocation method thereof |
| JP2012151628A (en) * | 2011-01-19 | 2012-08-09 | Jvc Kenwood Corp | Phase adjustment device |
| CN104503220A (en) * | 2014-11-18 | 2015-04-08 | 深圳市金立通信设备有限公司 | Terminal, clock and clock calibration system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106161987B (en) * | 2015-03-24 | 2019-05-10 | 深圳市巨烽显示科技有限公司 | A kind of more image Display on the same screen methods and more image Display on the same screen systems |
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- 2017-12-26 CN CN201711438087.0A patent/CN108156375B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393419A (en) * | 2008-10-27 | 2009-03-25 | 深圳华为通信技术有限公司 | Terminal and time collocation method thereof |
| JP2012151628A (en) * | 2011-01-19 | 2012-08-09 | Jvc Kenwood Corp | Phase adjustment device |
| CN104503220A (en) * | 2014-11-18 | 2015-04-08 | 深圳市金立通信设备有限公司 | Terminal, clock and clock calibration system |
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