CN101750838A - Automatic lens-retracting method for image capture device and control system thereof - Google Patents
Automatic lens-retracting method for image capture device and control system thereof Download PDFInfo
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- CN101750838A CN101750838A CN200810178959A CN200810178959A CN101750838A CN 101750838 A CN101750838 A CN 101750838A CN 200810178959 A CN200810178959 A CN 200810178959A CN 200810178959 A CN200810178959 A CN 200810178959A CN 101750838 A CN101750838 A CN 101750838A
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Abstract
The invention discloses an automatic lens-retracting method for an image capture device and a control system thereof. The method is applied to the image capture device with a retractable lens. The method comprises that: detecting whether the abnormal power-off shutdown occurs or not with the hardware circuit of an image capture device, confirming that the hardware circuit performs a restart program when the abnormal power-off shutdown occurs, utilizing remaining power to execute a lens-retracting control program through the software of the image capture device after the hardware circuit performs a restart program, and controlling the shutdown of the image capture device with the software after detecting that the retractable lens retracts to the image capture device. The invention utilizes the remaining battery power to restart and the lens-retracting program, ensures the safety of the lens under the premise that the battery power is utilized at maximum, also can reduce the time and cost on evaluating and adjusting the battery power by engineers, and can relatively increase the number of the piece of taken pictures for the battery.
Description
Technical field
The present invention is about a kind of lens control method and control system thereof, particularly a kind of control method of image capture unit automatic lens-retracting and use the control system of this method.
Background technology
Image capture unit (for example, digital camera) in conjunction with the emerging product of optics, precision optical machinery and electronics technology, it utilizes Charged Coupled Device (CCD) video conversion that camera lens is obtained to become digital image signal, processing by electronic circuit is stored in digital image signal in the Storage Media, as disk sheet, discs or IC memory card.On the other hand, image also can manifest (as TV or monitor) immediately on various displays, utilizes function again with the editor that makes various images, modification etc., and is quite convenient and save time economical.
Along with after digital camera becomes the main flow consumption electronic product in recent years gradually, the consumer also constantly promotes the requirement of digital camera functionality, for example high pixel, short-movie shoot function, big LCD display curtain, high capacity internal memory, small size and light weight etc.In this case, use of prolongation battery and standby time become the significant challenge that the digital camera design engineer faces.
Wherein because the battery label that digital camera uses is numerous, whether the estimation that must make a large amount of tests and complexity comes preestimating battery not have, yet the variability of battery itself is quite big, and the chemical formulation of battery also makes rapid progress, these all will make the complexity of preestimating battery electric weight and mortality rise, therefore the dump energy of the appraisal battery that digital camera will be correct is the thing of a difficulty, use in the experience of digital camera the user, often because of the undesired outage shutdown of power drain, and camera lens is not withdrawn, at this moment, the user even may make camera lens be clashed into and damages except the camera of the not portable camera lens of not withdrawing.
At present in order to solve the problem that aforementioned power drain causes that camera lens is not withdrawn, some power management design is to improve the threshold value that arrives power drain, so, though can guarantee before arriving power drain, digital camera still has the electric power retractable lens, but above-mentioned power management design also makes originally available power capacity descend relatively, and then has sacrificed digital camera and can clap number.In addition, can be about the related prior art of the electricity-saving mechanism of digital camera with reference to TaiWan, China patent announcement number I299813 number, the electricity saving method of a kind of image capture unit of this patent disclosure, though can save in standby and dolly camera brought repeatedly power consumption, thereby improve the number of taking pictures of image capture unit, but and the controlling mechanism of the unexposed camera lens of how under undesired outage shutdown situation, withdrawing automatically.
Therefore, how to provide the mechanism of the camera lens of withdrawing automatically under a kind of undesired outage shutdown situation, become one of researchist's problem to be solved.
Summary of the invention
In view of above problem, the invention provides a kind of image capture unit automatic lens-retracting control method and use the control system of this method, lie in undesired outage shutdown situation when taking place, the hardware and the software of control image capture unit, utilize remaining battery electric quantity to start shooting again and the program of the camera lens of withdrawing, use under the maximum operation efficiency of battery electric quantity, guarantee the security of camera lens simultaneously.
For solving the problems of the technologies described above, the invention discloses a kind of automatic lens-retracting method of image capture unit, be applied to have on the image capture unit of a retractable lens, include the following step:
The hardware circuit of this image capture unit detects whether undesired outage shut down event takes place;
When undesired outage shut down event confirm to take place, this hardware circuit carried out a boot program again;
After this hardware circuit carried out again boot program, the software of this image capture unit only was used to carry out a lens retraction control program with dump energy; And
After detecting this retractable lens and having withdrawn in this image capture unit, this image capture unit shutdown of this software control.
When confirming not take place undesired outage shut down event, then carry out general operation procedure by this software in this image capture unit.
This general operation procedure includes noise filtering program, the focus flexible program of program, camera lens, the real-time elimination program of blood-shot eye illness, video image capturing program, video image stability program and image editing/handling procedure automatically.
After the step after in this retractable lens of detection has been withdrawn this image capture unit, also include the step that shows a low information about power.
The invention also discloses a kind of control system of image capture unit,, comprising in order to control the retractable lens of an image capture unit:
One hardware circuit is installed in this image capture unit in order to detect this image capture unit when undesired outage shut down event takes place, and carries out a boot program again; And
One software, be installed in this image capture unit, when this hardware circuit carries out again boot program, dump energy only be used to carry out a lens retraction control program, and after in this retractable lens of detection has been withdrawn this image capture unit, control this image capture unit shutdown.
This software also is used to carry out a plurality of general operation procedures.
This general operation procedure includes noise filtering program, the focus flexible program of program, camera lens, the real-time elimination program of blood-shot eye illness, video image capturing program, video image stability program and image editing/handling procedure automatically.
The control system of described image capture unit also comprises a low information about power display unit, is located at the surface of this image capture unit, expresses with the information with this image capture unit electric weight deficiency.
This image capture unit is provided with a LCD screen, and this low information about power display unit shows that the information of this image capture unit electric weight deficiency is in this LCD screen.
Utilize this image capture unit automatic lens-retracting control method and use the control system of this method, when undesired outage shutdown situation takes place, the hardware and the software of control image capture unit, utilize remaining battery electric quantity to start shooting again and the program of the camera lens of withdrawing, except can be under the maximum operation efficiency of battery electric quantity, guarantee simultaneously outside the security of camera lens, more can reduce the slip-stick artist and drop into time and the cost that the battery electric quantity assessment is adjusted, reduce a large amount of batteries and use the test of assessing at battery electric quantity, reduce time of the complexity of assessment battery electric quantity program and maintenance program and the relative increase battery number of taking pictures.
Description of drawings
Fig. 1 is a battery electric quantity synoptic diagram of the present invention;
Fig. 2 is the calcspar of the control system of image capture unit of the present invention;
Fig. 3 is the flow chart of steps of the automatic lens-retracting method of image capture unit of the present invention.
Wherein, Reference numeral:
10 design electric weight, 11 full charge electric weight
12 caution electric weight, 13 low electric weight
100 batteries, 200 image capture units
210 hardware circuits, 220 softwares
230 low information about power display unit 240 LCD screen
Embodiment
The automatic lens-retracting method of image capture unit disclosed according to the present invention, can be applicable to comprise have dolly camera image capture unit (for example, image input equipments such as digital camera) on, wherein the automatic lens-retracting method of image capture unit of the present invention is relevant with the battery electric quantity of image capture unit, and the battery types of the normal image capture unit that uses includes battery No. 5 at present: alkaline battery, lithium battery, nickel-based battery (disposable battery); Ni-Cd nickel-cadmium, nickel-hydrogen chargeable cell (rechargeable battery); Lithium battery (disposable battery); Li-Ion rechargeable battery (rechargeable battery).So following elder generation is to the explanation that is defined as of battery electric quantity.
Please refer to Fig. 1 is battery electric quantity synoptic diagram of the present invention.As shown in Figure 1, the electric weight of battery 100 of the present invention can be divided into design electric weight 10, full charge electric weight 11, caution electric weight 12 and low electric weight 13.
Design electric weight 10 is meant the energy that can produce after the activate material acts on fully in the battery 100.
Full charge electric weight 11 is meant that battery 100 charges the actual exportable electric capacity in electricity back, generally is unit with the ampere hour.
Caution electric weight 12 is meant that battery 100 dump energies are about to not enough image capture units and continue long-time the use, and the electric power management mechanism in the image capture unit can be after detecting caution electric weight 12, the information of reminding user's battery electric quantity to be about to exhaust.
Low electric weight 13 is meant that battery 100 dump energies enough do not supply with all circuit of image capture unit (for example, lens driving motor, LCD, back light system, stocking system, flashing light system, Charged Coupled Device (CCD), system's Control Component, user's input/output interface, main video picture assembly, autofocus system ... Deng) running.Therefore, when electric weight 13 is hanged down in battery 100 arrival, make image capture unit in operation, cause the situation of undesired outage shutdown easily.
Next, please refer to Fig. 2, be the calcspar of the control system of image capture unit of the present invention.As shown in Figure 2, the control system of image capture unit 200 of the present invention is in order to the retractable lens (not shown) of control image capture unit 200.The control system of image capture unit 200 includes hardware circuit 210 and software 220.
Please refer to the flow chart of steps of Fig. 3 for the automatic lens-retracting method of image capture unit of the present invention.As shown in Figure 3, the automatic lens-retracting method of image capture unit of the present invention includes the following step:
At first, because the circuit that needs power supply in the image capture unit 200 (with reference to Fig. 2) has comprised lens driving motor, LCD, back light system, stocking system, flashing light system, Charged Coupled Device (CCD), system's Control Component, user's input/output interface, main video picture assembly, autofocus system ... Deng, when the electric weight of battery 100 arrives low electric weight 13 (with reference to Fig. 1) or low electric weight 13 when following, will cause that image capture unit 200 undesired outages shut down.
At this moment, though image capture unit 200 undesired outage shutdown, but still have remaining electric weight in the battery 100, therefore, the hardware circuit 210 of image capture unit 200 detects whether undesired outage shut down event (step 300) takes place, wherein can be whether under not withdrawal situation by detector lens, image capture unit 200 has shut down, judges that image capture unit 200 is undesired outage shut down event.
When undesired outage shut down event does not take place in image capture unit 200, then carry out general operation procedure (step 310) by the software in the image capture unit 200 220, and get back to step 300, wherein general operation procedure can for example be noise filtering program, focus program, the flexible program of camera lens, the real-time elimination program of blood-shot eye illness, video image capturing program, video image stability program, image editing program or image processing program automatically ... Deng.
When the hardware circuit 210 of image capture unit 200 confirmed to take place undesired outage shut down event, then hardware circuit 210 carried out a boot program (step 320) again.
After hardware circuit 210 carries out again boot program, the software 220 of image capture unit 200 only is used to carry out a lens retraction control program (step 330) with dump energy, wherein after image capture unit 200 is started shooting again, its software 220 is with preferential and unique execution lens retraction control program, in other words, the dump energy of battery 100 mainly is supplied to system's Control Component and lens driving motor, give all the other modules (LCD for example so will not supply electric weight, back light system, stocking system, flashing light system, Charged Coupled Device (CCD), system's Control Component, user's input/output interface, main video picture assembly, autofocus system ... Deng), with in the lens retraction image capture unit 200.
After detecting retractable lens and having withdrawn in the image capture unit 200, show low information about power (step 340), wherein low information about power can for example present in the mode that triggers a red light emitting diodes, perhaps expresses by the information of low information about power generation unit 230 with image capture unit 200 electric weight deficiencies.Wherein can whether withdraw in the image capture unit 200 by the sensor retractable lens of hardware circuit 210.
Comprehensive the above, the automatic lens-retracting method of image capture unit of the present invention and use the control system of this method, when undesired outage shutdown situation takes place, the hardware and the software of control image capture unit, utilize remaining battery electric quantity to start shooting again and the program of the camera lens of withdrawing, except can be under the maximum operation efficiency of battery electric quantity, guarantee simultaneously outside the security of camera lens, because the present invention need not to utilize complicated battery electric quantity appraisal procedure, drop into time and the cost that the battery electric quantity assessment is adjusted so more can reduce the slip-stick artist, reduce a large amount of batteries and use the test of assessing at battery electric quantity, reduce time of the complexity of assessment battery electric quantity program and maintenance program and the relative increase battery number of taking pictures.
Claims (9)
1. the automatic lens-retracting method of an image capture unit is applied to have on the image capture unit of a retractable lens, it is characterized in that this automatic lens-retracting method includes the following step:
The hardware circuit of this image capture unit detects whether undesired outage shut down event takes place;
When undesired outage shut down event confirm to take place, this hardware circuit carried out a boot program again;
After this hardware circuit carried out again boot program, the software of this image capture unit only was used to carry out a lens retraction control program with dump energy; And
After detecting this retractable lens and having withdrawn in this image capture unit, this image capture unit shutdown of this software control.
2. the automatic lens-retracting method of image capture unit as claimed in claim 1 is characterized in that, when confirming not take place undesired outage shut down event, then carries out general operation procedure by this software in this image capture unit.
3. the automatic lens-retracting method of image capture unit as claimed in claim 2, it is characterized in that this general operation procedure includes noise filtering program, the focus flexible program of program, camera lens, the real-time elimination program of blood-shot eye illness, video image capturing program, video image stability program and image editing/handling procedure automatically.
4. the automatic lens-retracting method of image capture unit as claimed in claim 1 is characterized in that, after the step that detects after this retractable lens has been withdrawn in this image capture unit, also includes the step that shows a low information about power.
5. the control system of an image capture unit in order to control the retractable lens of an image capture unit, is characterized in that, comprising:
One hardware circuit is installed in this image capture unit in order to detect this image capture unit when undesired outage shut down event takes place, and carries out a boot program again; And
One software, be installed in this image capture unit, when this hardware circuit carries out again boot program, dump energy only be used to carry out a lens retraction control program, and after in this retractable lens of detection has been withdrawn this image capture unit, control this image capture unit shutdown.
6. as the control system of image capture unit as described in the claim 5, it is characterized in that this software also is used to carry out a plurality of general operation procedures.
7. as the control system of image capture unit as described in the claim 6, it is characterized in that this general operation procedure includes noise filtering program, the focus flexible program of program, camera lens, the real-time elimination program of blood-shot eye illness, video image capturing program, video image stability program and image editing/handling procedure automatically.
8. as the control system of image capture unit as described in the claim 5, it is characterized in that, also comprise a low information about power display unit, be located at the surface of this image capture unit, express with information with this image capture unit electric weight deficiency.
9. as the control system of image capture unit as described in the claim 8, it is characterized in that this image capture unit is provided with a LCD screen, this low information about power display unit shows that the information of this image capture unit electric weight deficiency is in this LCD screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810178959A CN101750838A (en) | 2008-12-03 | 2008-12-03 | Automatic lens-retracting method for image capture device and control system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810178959A CN101750838A (en) | 2008-12-03 | 2008-12-03 | Automatic lens-retracting method for image capture device and control system thereof |
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| CN101750838A true CN101750838A (en) | 2010-06-23 |
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| CN200810178959A Pending CN101750838A (en) | 2008-12-03 | 2008-12-03 | Automatic lens-retracting method for image capture device and control system thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348140A (en) * | 2013-07-29 | 2015-02-11 | 联想(北京)有限公司 | Low electric quantity prompting method and electronic equipment |
| CN108600597A (en) * | 2018-07-17 | 2018-09-28 | 北京小米移动软件有限公司 | Front camera component and front camera control method |
| CN109788091A (en) * | 2018-12-29 | 2019-05-21 | Oppo广东移动通信有限公司 | Electronic equipment |
-
2008
- 2008-12-03 CN CN200810178959A patent/CN101750838A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348140A (en) * | 2013-07-29 | 2015-02-11 | 联想(北京)有限公司 | Low electric quantity prompting method and electronic equipment |
| CN104348140B (en) * | 2013-07-29 | 2018-02-27 | 联想(北京)有限公司 | The method and electronic equipment that a kind of low battery is reminded |
| CN108600597A (en) * | 2018-07-17 | 2018-09-28 | 北京小米移动软件有限公司 | Front camera component and front camera control method |
| CN109788091A (en) * | 2018-12-29 | 2019-05-21 | Oppo广东移动通信有限公司 | Electronic equipment |
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Open date: 20100623 |