CN104427229B - A kind of automatic elimination photographing module ESD method - Google Patents
A kind of automatic elimination photographing module ESD method Download PDFInfo
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- CN104427229B CN104427229B CN201310375947.6A CN201310375947A CN104427229B CN 104427229 B CN104427229 B CN 104427229B CN 201310375947 A CN201310375947 A CN 201310375947A CN 104427229 B CN104427229 B CN 104427229B
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- photographing module
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Abstract
The present invention provides a kind of automatic elimination photographing module ESD method, for when the photographing module in portable electric appts is disturbed by ESD, its step to be as follows：(1) baseband system is by photographing module software initialization；(2) detect whether the communication of the baseband system and the photographing module is abnormal;(3) if the communication abnormality of the baseband system and the photographing module, the baseband system is re-powered after being powered off to the photographing module；(4) baseband system is by the photographing module software initialization;(5) detect whether the communication of the baseband system and the photographing module is abnormal;(6) if the communication abnormality of the baseband system and the photographing module, the baseband system controls the portable electric appts to restart automatically.Purposes of the ESD to the interference of photographing module can more efficiently be eliminated automatically by being reached by above step.
Description
Technical field
The present invention relates to a kind of elimination ESD method, and in particular to a kind of automatic elimination photographing module ESD method.
Background technology
Mancarried electronic aid of today all possesses camera function substantially, but is due to the portability of such electronic equipment, its
The probability for occurring ESD interference will be far longer than large scale system equipment, and the photographing module being particularly in the most contact with the external world is dry by ESD
Disturb particularly evident.Usual photographing module by ESD disturb when, it may occur that above and below image, left and right reversion, color inverse, image
Data are not complete, situations such as content is disorderly, and portable electric appts itself are basic all without the automatic normal work for recovering photographing module
Make, most users could can only normally use camera function again by restarting portable electric appts manually, this results in
The time for recovering photographing module normal work is longer.
But ESD interference causes the abnormal situation of photographing module, it may be possible to which ESD causes photographing module code exception or ESD to lead
Causing baseband system to power photographing module, generation is abnormal, and exception is need not to restart portable electric appts to solve based on more than
Certainly.
So how to realize that the ESD interference that the photographing module in fast automatic elimination portable electric appts is subject to becomes
The problem of prior art is to be resolved.
The content of the invention
It is an object of the invention to solve problems of the prior art, that is, provide a kind of automatic elimination photographing module
ESD method, it can eliminate interference of the ESD to photographing module by method faster, directly manual without user
Restart portable electric appts, the speed that ESD produces interference to photographing module is eliminated so as to improve.
To reach above-mentioned purpose, a kind of automatic elimination photographing module ESD method, for when in portable electric appts
When photographing module is disturbed by ESD, it is characterised in that step is as follows：
（1）Baseband system is by photographing module software initialization；
（2）Detect whether the communication of the baseband system and the photographing module is abnormal；
(3) if the communication abnormality of the baseband system and the photographing module, the baseband system is to the photographing module
Re-powered after being powered off;
(4) baseband system is by the photographing module software initialization;
(5) detect whether the communication of the baseband system and the photographing module is abnormal;
(6) if the communication abnormality of the baseband system and the photographing module, the baseband system control is described portable
Electronic equipment is restarted automatically.
Wherein, detect the baseband system and photographing module communication it is whether abnormal include detecting the baseband system with
Whether clock signal connection is abnormal between the photographing module.
Wherein, the I2C clock cables that the clock signal connection is included between the base band and the photographing module connect
Connect, MIPI clock cables are connected.
Wherein, detect the baseband system and photographing module communication it is whether abnormal include detecting the baseband system with
Whether data signal transmission is abnormal between the photographing module.
Wherein, the I2C data signal lines that the data-signal connection is included between the base band and the photographing module connect
Connect, MIPI data signal lines are connected.
Wherein, if detecting, the communication between the baseband system and the photographing module is normal, without follow-up step
Rapid operation.
Wherein, the baseband system include a power supply module, the power supply module include one first linear stabilized power supply with
One second linear stabilized power supply, wherein, the step of baseband system is re-powered after being powered off to the photographing module is wrapped
Include:
(31) first linear stabilized power supply exports one first low level signal to the photographing module;
(32) second linear stabilized power supply exports one second low level signal to the photographing module;
(33) second linear stabilized power supply exports one second high level signal to the photographing module;
(34) first linear stabilized power supply exports one first high level signal to the photographing module.
More excellent, first low level signal is 0V, and second low level signal is 0V, and first high level is
1.8V, second high level is 2.8V.
Wherein, first linear stabilized power supply is powered to the DOVDD interfaces and DVDD interfaces of the photographing module, described
Second linear stabilized power supply is powered to the AVDD interfaces of the photographing module.
More excellent, it is spaced between the step (31), the step (32), the step (33), the step (34)
0.1s~0.5s.
The advantage of the invention is that:
(1) when photographing module is disturbed by ESD, user directly just need not can by restarting electronic equipment manually
Enough reach the automatic purpose for eliminating ESD interference.
(2) present invention is disturbed photographing module software code by excluding ESD first, then excludes ESD to photographing module confession
The interference of electricity, so as to reduce the probability that user restarts portable electric appts, allows users to quick reach and disappears automatically
Except ESD produces the purpose of interference to photographing module.
Brief description of the drawings
Fig. 1 is the signal connection diagram of baseband system and photographing module;
Fig. 2 is the power supply connection diagram of baseband system and photographing module;
Fig. 3 is a kind of flow chart of automatic elimination photographing module ESD of one embodiment of the invention method;
Fig. 4 is that baseband system is powered off to photographing module in a kind of automatic elimination photographing module ESD method of the present invention
The flow chart re-powered afterwards;
1:Baseband system
12:Power supply module
121:First linear stabilized power supply
122:Second linear stabilized power supply
2:Photographing module
31:I2C clock cables
32:MIPI clock cables
33:I2C data signal lines
34:MIPI data signal lines
Embodiment
In order that relevant technical staff in the field more fully understands technical scheme, below in conjunction with of the invention real
The accompanying drawing of mode is applied, the technical scheme in embodiment of the present invention is clearly and completely described.
Comprising baseband system 1 and photographing module 2 in portable electric appts, the communication connection of theirs between the two is to pass through
What clock signal, data-signal were connected, believe between baseband system 1 and photographing module 2 as shown in Figure 1 at least by I2C clocks
Number line 31, MIPI clock cables 32, I2C data signal lines 33, MIPI data signal lines 34 are connected, so as to realize that signal is passed
It is defeated, reach the normal purpose of communication.Wherein I2C clock cables 31 and I2C data signal lines 33 are to read photographing module 2
Address and the control command information that is sent to photographing module 2 of transmission baseband system 1, MIPI clock cables 32 are to make base band
System 1 synchronizes work, view data of the MIPI data signal lines 34 to transmit the acquisition of photographing module 2 with photographing module 2
Information is to baseband system 1.
Shown in Fig. 2, baseband system 1 includes a power supply module 12, and power supply module 12 includes one first linear stabilized power supply 121
With one second linear stabilized power supply 122, first linear stabilized power supply 121 and one second linear stabilized power supply 122 are to described
Photographing module is powered.Wherein the first linear stabilized power supply 121 provides the power supply of DOVDD, DVDD mode, second to photographing module 2
Linear voltage-stabilized power supply circuit 122 provides the power supply of AVDD modes to photographing module 2.Wherein, DOVDD is I/O interface, and DVDD is number
Word circuit interface, AVDD is analog circuit interface.
As shown in figure 3, the present invention provides a kind of automatic elimination photographing module ESD method, for being set when portable electronic
The step of when photographing module 2 in standby is disturbed by ESD, includes
Step S1:Baseband system 1 is by the software initialization of photographing module 2;
In the case of photographing module 2 is disturbed by ESD, probability highest is that ESD is done to the software code generation of photographing module 2
Disturb, cause software code to occur abnormal, by baseband system 1 by the software initialization of photographing module 2, eliminate ESD to photographing module 2
The interference that software code is produced, just need not can restart to eliminate ESD interference by portable electric appts.
Step S2:Detect whether the communication of baseband system 1 and photographing module 2 is abnormal;
Detect whether the communication of baseband system 1 and photographing module 2 is abnormal, generally by detection baseband system 1 and shooting
Whether communication abnormality judges for the clock cable and data signal line that are connected between module 2.Usually, when photographing module 2 by
When not eliminated yet to ESD interference, the signal transmitted by I2C data signal lines 31, I2C clock cables 33 may produce different
Often so that baseband system 1 normally can not read its address from photographing module module 2;Or pass through MIPI clock cables 32
The signal of transmission may produce exception, occur that MIPI clock signals are unstable to cause base system 1 same with photographing module 2
Walk work;Or may occur exception by the signal of MIPI data signal lines 34, cause baseband system 1 not obtain normally
Situations such as image information of photographing module 2.So judge whether baseband system 1 is communicated with photographing module 2 abnormal, including detection base
With between system 1 and photographing module 2 by I2C clock cables 31, MIPI clock cables 32 transmit clock signal whether
It is abnormal to be transmitted between detection baseband system 1 and photographing module 2 by I2C data signal lines 33, MIPI data signal lines 34
Whether data-signal is abnormal.
Step S3:If the communication abnormality of baseband system 1 and photographing module 2, baseband system 1 is powered off to photographing module 2
After re-power reset;
Photographing module 2 by ESD in the case of being disturbed, and ESD produces the probability of interference most to the software code of photographing module 2
Greatly, secondly it is exactly ESD interference power supplies of the baseband system 1 to photographing module 2, causes such as supply voltage exception, power supply order is different
Powerup issue is often waited, the interference of the above is eliminated, also and portable electric appts need not be restarted, only needs 1 pair of baseband system to take the photograph
The operation of reset is re-powered after being powered off as module 2 just can eliminate ESD interference.
Step S4:Baseband system 1 is by the software initialization of photographing module 2;
After baseband system 1 is powered off to photographing module 2, the software on photographing module 2 can be caused out of service, in order that
The normal operation of software is protected on photographing module 2, thus photographing module 2 need to be powered off re-power again reset after carry out software
Initialization, reaches the purpose reloaded to the software of photographing module 2.
Step S5:Detect whether the communication of baseband system 1 and photographing module 2 is abnormal;
Step S6:If the communication abnormality of baseband system 1 and photographing module 2, the baseband system controls the portable electric
Sub- equipment is restarted automatically.
When that still can not eliminate ESD after S1~S4 steps to the interference of photographing module 2, that just passes through baseband system
The 1 control portable electric appts are restarted automatically thoroughly eliminates the purpose that ESD is disturbed to reach.
Therefore the present invention carries out step S1, row to occurring the software Confused-code of ESD interference probability highests photographing module 2 first
Except ESD is to the interference on the software of photographing module 2.Whether the interference for detecting ESD by step S2 is still present, if ESD is disturbed
Eliminate, photographing module 2 recovers normal operating conditions step S7 and without the operation of subsequent step, if still can not eliminate
ESD is disturbed, then excludes ESD to the interference in the power supply of photographing module 2 by step S3 and step S4.ESD is detected by step S5
Interference whether still exist, if ESD interference is eliminated, photographing module 2 recovers normal operating conditions step S7 and without rear
The operation of continuous step, if ESD interference still can not be eliminated, perform step S6 restart portable electric appts with reach elimination because
ESD disturbs photographing module module 2 and brings other abnormal situations, photographing module 2 is recovered normal operating conditions step S7 simultaneously
Without the operation of subsequent step.
In order to ensure the normal steady operation of photographing module 2, as shown in figure 4,1 pair of the baseband system photographing module 2 enters
The step of being re-powered after row power-off includes:
(31) first linear stabilized power supply 121 exports one first low level signal to photographing module 2;
(32) second linear stabilized power supplies 122 export one second low level signal to photographing module 2;
(33) second linear stabilized power supplies 122 export one second high level signal to photographing module 2;
(34) first linear stabilized power supplies 121 export one first high level signal to photographing module 2.
In actual practice it is preferred to, the first low level signal is 0V, and the second low level signal is 0V, the first high level
Signal is 1.8V, and the second high level signal is 2.8V.
It is preferred that, step (31), step (32）, step (33）, 0.1s~0.5s is spaced between step (34).
Present invention advantage compared with prior art is:It is general to be caused the software code of photographing module 2 to be sent out by ESD interference
Raw abnormal probability height, so the present invention is imaged caused by excluding ESD interference by the software initialization of photographing module 2 first
The problem of code of module 2 occurs abnormal.Secondly, the abnormal incidence brought by ESD on the hardware of photographing module 2 is also higher,
Therefore occur by re-powering to eliminate baseband system 1 caused by ESD and power to photographing module 2 after powering off for photographing module 2
Abnormal situation.The reason for by 2 operation irregularity of photographing module that is caused to ESD, is excluded step by step, finally recovers mobile phone
The normal work of photographing module, thus reduce restarted by portable electric appts be solve ESD interference probability, accelerate
User eliminates influences of the ESD to photographing module 2.
Only express the several embodiments of the present invention above, it describes more specific and in detail, but can not therefore and
It is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, not taking off
On the premise of present inventive concept, various modifications and improvements can be made, these belong to protection scope of the present invention.Cause
This, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of automatic elimination photographing module ESD method, for being done when the photographing module in portable electric appts by ESD
When disturbing, it is characterised in that step is as follows：
(1) baseband system is by the photographing module software initialization；
(2) detect whether the communication of the baseband system and the photographing module is abnormal；
(3) if the communication abnormality of the baseband system and the photographing module, the baseband system is carried out to the photographing module
Re-powered after power-off；The baseband system includes a power supply module, and the power supply module includes one first linear stabilized power supply
With one second linear stabilized power supply, wherein, the step of baseband system is re-powered after being powered off to the photographing module
Including：
(31) first linear stabilized power supply exports one first low level signal to the photographing module；
(32) second linear stabilized power supply exports one second low level signal to the photographing module；
(33) second linear stabilized power supply exports one second high level signal to the photographing module；
(34) first linear stabilized power supply exports one first high level signal to the photographing module；
(4) baseband system is by the photographing module software initialization；
(5) detect whether the communication of the baseband system and the photographing module is abnormal；
(6) if the communication abnormality of the baseband system and the photographing module, the baseband system controls the portable electronic
Equipment is restarted automatically.
2. the method according to claim 1, it is characterised in that the detection baseband system is communicated with the photographing module
It is whether abnormal including detecting whether clock signal connection is abnormal between the baseband system and the photographing module.
3. method according to claim 2, it is characterised in that the clock signal connection include the baseband system and
The connection of I2C clock cables, the connection of MIPI clock cables between the photographing module.
4. according to the method described in claim 1, it is characterised in that the detection baseband system is communicated with the photographing module is
No exception includes detecting whether data-signal connection is abnormal between the baseband system and the photographing module.
5. the method according to claim 4, it is characterised in that the data-signal connection include the base band with it is described
The connection of I2C data signal lines, the connection of MIPI data signal lines between photographing module.
6. the method according to claim 1, it is characterised in that the baseband system leads to the photographing module if detecting
News are normal, then without the operation of subsequent step.
7. the method according to claim 1, it is characterised in that first low level signal is 0V, and described second is low
Level signal is 0V, and first high level signal is 1.8V, and second high level signal is 2.8V.
8. the method according to claim 1, the DOVDD of the first linear stabilized power supply to the photographing module connects
Mouth and DVDD interfaces are powered, and second linear stabilized power supply is powered to the AVDD interfaces of the photographing module.
9. the method according to claim 1, it is characterised in that the step (31), the step (32）, the step
(33）, 0.1s~0.5s is spaced between the step (34).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310375947.6A CN104427229B (en) | 2013-08-26 | 2013-08-26 | A kind of automatic elimination photographing module ESD method |
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| CN201310375947.6A CN104427229B (en) | 2013-08-26 | 2013-08-26 | A kind of automatic elimination photographing module ESD method |
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| CN104427229B true CN104427229B (en) | 2017-10-31 |
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| CN105761661B (en) * | 2016-05-20 | 2019-03-05 | 上海中航光电子有限公司 | Display device and its method for restarting, display panel |
| CN109040648B (en) * | 2018-09-04 | 2021-01-26 | 广东小天才科技有限公司 | Anti-static processing method of wearable device and wearable device |
| CN110443085B (en) * | 2019-06-17 | 2023-08-01 | 深圳盈达信息科技有限公司 | Control method for fall protection of scanning device and scanning device |
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| US7702955B2 (en) * | 2005-12-28 | 2010-04-20 | De Almeida Adrian S | Method and apparatus for detecting a fault condition and restoration thereafter using user context information |
| CN100571339C (en) * | 2007-07-17 | 2009-12-16 | 中兴通讯股份有限公司 | A kind of method of improving mobile phone cam static bleed off problem |
| US7821751B2 (en) * | 2008-02-05 | 2010-10-26 | Sony Ericsson Mobile Communications Ab | ESD-detector |
| CN102622150B (en) * | 2012-02-22 | 2015-05-06 | 广东欧珀移动通信有限公司 | Static eliminating method for touch screen |
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Effective date of registration: 20201125 Address after: 221700 4-1-110-shop, Nanyuan new town, Fengxian County, Xuzhou City, Jiangsu Province Patentee after: Song Yixiao Address before: 201616 Shanghai city Songjiang District Guangfulin road 4855 Lane 20, No. 90 Patentee before: Phicomm (Shanghai) Co.,Ltd. |
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