CN101256337A - Control method and system for mobile spectral filter - Google Patents
Control method and system for mobile spectral filter Download PDFInfo
- Publication number
- CN101256337A CN101256337A CNA2008100656231A CN200810065623A CN101256337A CN 101256337 A CN101256337 A CN 101256337A CN A2008100656231 A CNA2008100656231 A CN A2008100656231A CN 200810065623 A CN200810065623 A CN 200810065623A CN 101256337 A CN101256337 A CN 101256337A
- Authority
- CN
- China
- Prior art keywords
- spectral filter
- mobile spectral
- illumination
- mobile
- duty
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Exposure Control For Cameras (AREA)
Abstract
The invention provides a control method and system of removal filter, suitable for photoelectric imaging field, comprising setting work mode of removal filter; performing the command of turning on, off the removal filter or automatically switching the work state of the removal filter, based on the work mode of the filter. The invention can save the design cost of part of the periphery circuit and prevents the error action of removal filter resulted from the random fluctuation of illumination condition in short time, at the same time the work mode parameter of filter is set as automation mode, and the switching condition can be preset by user and when and how to switching the removal filter is flexibly realized, to satisfy the real requirement of the user.
Description
Technical field
The invention belongs to the photoelectronic imaging field, relate in particular to a kind of control method and system of mobile spectral filter.
Background technology
The another name of optical filter be optical low-pass filter (Optical Low Pass Filter, OLPF), its main function be revise charge-coupled image sensor (Charge Coupled Device, CCD) advance the infrared ray that light and filtering colored CCD advance light.With regard to the back function of OLPF, CCD under any circumstance needs the filtering infrared ray, for example, when illumination condition is poor, in order to obtain distinct image more, thereby need make CCD experience light as much as possible and can experience infrared light, in this case, can not re-use optical filter; Another kind of opposite situation is when illumination condition is relatively good, CCD does not need infrared ray just can produce better image, in this case, if CCD has experienced infrared light, can cause the skew of color of image on the contrary, just need an optical filter filtering infrared light this moment.
Therefore, according to the varying environment that video camera uses, need to switch the duty of optical filter, this demand has produced mobile spectral filter, and it closes optical filter under the situation of insufficient light, make CCD experience more rays; Under well-lighted situation, open optical filter, avoid CCD to experience the deviation that infrared light causes color of image.
For when opening when close mobile spectral filter, the prior art scheme is to control the duty of optical filter by peripheral circuit,, when illumination is lower than or be higher than the reference value that presets, is driven the switching of mobile spectral filter state by peripheral circuit that is.The defective of this technology is: when illumination condition the short time occurs when changing, can cause the misoperation of mobile spectral filter, and, how mobile spectral filter switches and when switch all is to be controlled automatically by peripheral circuit, the user can not be provided with the duty of mobile spectral filter according to actual conditions, thereby the switching that the optical filter state occurs does not meet the situation of user's needs.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of control method and system of mobile spectral filter, is intended to solve the problem that the duty that is easy to generate misoperation and mobile spectral filter switching in the prior art when switching mobile spectral filter can not reflect user's true wish.
The embodiment of the invention is achieved in that a kind of method of the mobile spectral filter duty that automaticallyes switch, and said method comprising the steps of:
A, illumination threshold value and time threshold when presetting system works under the mobile spectral filter;
B, when current illumination equates with described illumination threshold value and illumination duration of current illumination when reaching described time threshold, switch the duty of mobile spectral filter.
Further comprise between described steps A and the step B: obtain current illumination.
Another purpose of the embodiment of the invention is to provide a kind of control method of mobile spectral filter, said method comprising the steps of:
The mode of operation of mobile spectral filter is set;
According to the mode of operation of described mobile spectral filter, carry out the order of opening, closing mobile spectral filter or automatic switchover mobile spectral filter duty.
Described automatic switchover mobile spectral filter duty specifically comprises:
Illumination threshold value and time threshold when presetting system works under the mobile spectral filter;
Obtain current illumination;
When current illumination equates with described illumination threshold value and illumination duration of current illumination when reaching described time threshold, switch the duty of mobile spectral filter.
The another purpose of the embodiment of the invention is to provide a kind of control system of mobile spectral filter, and described system comprises automatic control module at least, described automatic control module be used to the to automatically switch duty of mobile spectral filter, and it comprises:
The handoff parameter storage unit is used to store the handoff parameter of mobile spectral filter, and described handoff parameter comprises illumination threshold value and time threshold;
The signal reading unit is used to read current brightness value;
The switching judging unit is used for that described current brightness value equates with described illumination threshold value and illumination duration of current illumination when reaching described time threshold, sends the indicator signal of switching the mobile spectral filter duty.
Described system further comprises:
Parameter is provided with the interface, is used for the mode of operation parameter that the user is provided with mobile spectral filter;
The user is provided with condition judgment module, the mode of operation parameter of the mobile spectral filter that is used to judge that the user is provided with, and, send the indicator signal of closing or open mobile spectral filter according to the mode of operation parameter of the mobile spectral filter of described setting;
The peripheral circuit module is used for driving the switching of mobile spectral filter duty when receiving that the user is provided with the indicator signal of condition judgment module or automatic control module transmission.
The invention has the beneficial effects as follows: the design cost of having saved the part peripheral circuit, avoided the chance of illumination condition short time to change the misoperation of the mobile spectral filter cause, simultaneously, working status parameter at mobile spectral filter is set under the automatic mode, preset switching condition by the user, realize flexibly when mobile spectral filter switches and how to switch, and has satisfied user's real demand.
Description of drawings
Fig. 1 is the realization flow of the control mobile spectral filter action that provides of the embodiment of the invention;
Fig. 2 is the workflow of the mobile spectral filter that provides of the embodiment of the invention at automatic mode;
Fig. 3 is the structural representation of the control system of the mobile spectral filter that provides of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The present invention implements to close, open or the operation of control automatically to mobile spectral filter by judging the duty of the mobile spectral filter that the user is provided with, and makes the wish precision maneuver of mobile spectral filter according to the user.
Please refer to Fig. 1, the realization flow of the control mobile spectral filter action that the embodiment of the invention provides is described in detail as follows.
Step S101, user are provided with mobile spectral filter mode of operation parameter.
In embodiment provided by the invention, the user can enter the OSD interface of system or the mode of operation parameter of mobile spectral filter is set by PC end remote control software.The mode of operation parameter of mobile spectral filter comprises to be closed, opens and automatic mode, wherein preceding two parameters are respectively applied for is arranged to mobile spectral filter to close and open mode, the parameter in back is used for the handoff parameter of system according to user's input, the duty of automatic switchover mobile spectral filter.Can determine that on-the-spot illumination can keep under the constant prerequisite, the user can select to be provided with the mode of operation parameter of closing or opening, otherwise, can be arranged to automatic mode.
Step S102 judges the mobile spectral filter mode of operation that the user is provided with to step S104, sends corresponding signal to peripheral circuit, carries out corresponding actions.
If system judges that the mobile spectral filter mode of operation parameter that the user is provided with is " closing ", then by CPU (central processing unit) (Central Processing Unit, CPU) transmission is closed indicator signal to peripheral circuit (step S103), peripheral circuit is according to this indicator signal, drive the switching of mobile spectral filter, system carries out the action of closing mobile spectral filter; Perhaps, system judges that the mobile spectral filter mode of operation parameter that the user is provided with is " opening ", is then sent by CPU and opens indicator signal to peripheral circuit (step S104), and peripheral circuit is according to this indicator signal, drive the switching of mobile spectral filter, system carries out the action of opening mobile spectral filter.Unlike the prior art, peripheral circuit of the present invention is not the switching that drives mobile spectral filter automatically, but drives the switching of mobile spectral filter according to the mobile spectral filter mode of operation parameter that the user is provided with, so has reflected user's true wish.
Step S105 reads the signal of DSP output under the automatic mode.
Can be in steady state when the user can't affirm on-the-spot illumination, that is, the user can't affirm that user's mobile spectral filter mode of operation parameter was set to automatic mode when on-the-spot illumination condition always was in better or relatively poor state.Under automatic mode, (opening and closing of automatic switchover mobile spectral filter do not need manual intervention for Digital Signal Processor, DSP) Shu Chu signal according to digital signal processor spare in system.Among the embodiment provided by the invention, the signal of DSP output comprises the current illumination that CCD experiences.
Step S106 judges and whether satisfies the condition of closing mobile spectral filter under the current situation, and implement corresponding actions to step S108.
System compares the signal of DSP output under the current situation with the light application time that the user continues under the illumination that is provided with under the automatic mode and this illumination, with the result of comparison as the condition that judges whether to close mobile spectral filter.When satisfying when closing the condition of mobile spectral filter, then send and close indicator signal to peripheral circuit (step S107) by CPU, peripheral circuit drives the switching of mobile spectral filter according to this indicator signal, and system carries out the action of closing mobile spectral filter; Otherwise, open indicator signal to peripheral circuit (step S108) by the CPU transmission, peripheral circuit drives the switching of mobile spectral filter according to this indicator signal, and system carries out the action of opening mobile spectral filter, and concrete workflow is as shown in Figure 2.
With reference to Fig. 2, the mobile spectral filter that the embodiment of the invention provides is in the workflow of automatic mode, and details are as follows.
Step S201 is provided with the handoff parameter under the automatic mode.
Handoff parameter comprises illumination threshold value and the time threshold that presets, and this time threshold can rule of thumb be provided with.The current illumination that CCD experiences reaches the necessary condition that described threshold value is just switched mobile spectral filter, therefore, the meaning that time threshold is set is to have only when the duration of current illumination reaches this time threshold that presets, and system just carries out the action of switching mobile spectral filter.
Step S202 reads the signal of DSP output.
Among the embodiment provided by the invention, the signal of DSP output comprises the current illumination that CCD experiences.
Step S203 judges whether current illumination reaches the illumination threshold value that the user is provided with.
When the current illumination of experiencing as CCD reaches the illumination threshold value that the user presets, further judge whether to need to switch the duty of mobile spectral filter by the time-delay mode, otherwise system keeps the duty of mobile spectral filter to work under current illumination condition.
Step S204 judges whether the duration of current illumination reaches the time threshold that presets.
Reach under the illumination threshold value precondition that the user presets in the current illumination that CCD experiences, system further judges whether the illumination duration of described current illumination reaches the time threshold that presets, if reach, then send the signal that switches the mobile spectral filter duty; Otherwise system still keeps the duty of mobile spectral filter to work under current illumination conditions.
Unlike the prior art, the present invention just sends the indicator signal of switching the mobile spectral filter duty immediately when current illumination reaches the illumination threshold value that the user presets, but has preset a time threshold.Have only when current illumination to reach the illumination threshold value that the user is provided with, and duration of current illumination when reaching described time threshold, the duty of mobile spectral filter is just switched in system.Avoided the chance of illumination condition short time to change the misoperation of the mobile spectral filter cause so, effectively.
Step S205, the indicator signal that sends the switching mobile spectral filter is to peripheral circuit.
This step is to be "Yes" at step S203 and step S204 judged result, promptly, the duration that current illumination reaches illumination threshold value that the user is provided with and current illumination, CPU circuit to the periphery sent the indicator signal of switching the mobile spectral filter duty when reaching described time threshold.
Fig. 3 shows the structure of the control system of the mobile spectral filter that the embodiment of the invention provides, and for convenience of explanation, only shows the part relevant with the embodiment of the invention.This system comprises:
Parameter is provided with interface 301, as the human-computer interaction interface of system, can be that OSD is provided with interface or the PC end interface that remote control software provided;
The user is provided with condition judgment module 302, is used to judge that the user is provided with the duty of the mobile spectral filter of interface 301 settings by parameter;
The principle of work of system is such: the user is provided with interface or the PC end interface (parameter is provided with interface 301) that remote control software provided by entering OSD, and mobile spectral filter mode of operation parameter is set, and described parameter comprises to be closed, open and automatic mode.Can affirm that the user current illumination will keep can its mode of operation parameter being set to close or open under the constant situation, peripheral circuit module 304 is according to this setting of user, and the duty of mobile spectral filter is switched to the state of closing or opening.
Different with the duty of prior art control mobile spectral filter, the embodiment of the invention provides a kind of pattern of automatic control mobile spectral filter duty, promptly, when the user is provided with interface 301 mobile spectral filter mode of operations and is set to automatic mode by parameter, automatic control module 303 is according to this setting of user, judge under the current situation whether should switch the mobile spectral filter duty, and then make the indicator signal whether to the periphery circuit transmission switches the mobile spectral filter duty.
In automatic control module 303, the handoff parameter that handoff parameter storage unit 3031 storage users preset under automatic mode, described parameter comprises illumination threshold value and time threshold.Signal reading unit 3032 reads the current illumination that CCD experiences.When the illumination threshold value of described current illumination and handoff parameter storage unit 3031 storages equates, switching judging unit 3033 think be necessary to switch the duty of mobile spectral filter and to the periphery circuit module 304 send the indicator signal of switching mobile spectral filter duties.
Change the misoperation (but having switched its duty in the time of promptly should not switching its duty) of the mobile spectral filter that causes for fear of the chance of current illumination short time, presetting of above-mentioned time threshold is absolutely necessary.In embodiment provided by the invention, have only the current illumination that reads when signal reading unit 3032 to equate with the illumination threshold value of handoff parameter storage unit 3031 storages, and the illumination duration of described current illumination is when reaching the time threshold of handoff parameter storage unit 3031 storages, the duty of mobile spectral filter really need be switched in switching judging unit 3033 ability identification systems, so circuit module 304 sends the indicator signal of switching mobile spectral filter to the periphery, peripheral circuit module 304 begins to drive the switching of mobile spectral filter.
The present invention is by being provided with the working status parameter of mobile spectral filter by the user, CPU is transferred in the control of mobile spectral filter duty to be handled, not only saved the design of a part of peripheral circuit, saved cost, and the chance of effectively having avoided the illumination condition short time changes the misoperation of the mobile spectral filter that causes, simultaneously, when mobile spectral filter mode of operation parameter is set to automatic mode, preset switching condition by the user, realize flexibly when mobile spectral filter switches and how to switch, and has satisfied user's real demand.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of method of the mobile spectral filter duty that automaticallyes switch is characterized in that, said method comprising the steps of:
A, illumination threshold value and time threshold when presetting system works under the mobile spectral filter;
B, when current illumination equates with described illumination threshold value and illumination duration of current illumination when reaching described time threshold, switch the duty of mobile spectral filter.
2, the method for automatic switchover mobile spectral filter duty as claimed in claim 1 is characterized in that, further comprises between described steps A and the step B:
Obtain current illumination.
3, the method for automatic switchover mobile spectral filter duty as claimed in claim 1 is characterized in that, the duty of described mobile spectral filter comprises opening and closing.
4, the method for automatic switchover mobile spectral filter duty as claimed in claim 1, it is characterized in that, when current illumination and described illumination threshold value unequal, or current illumination equates with described illumination threshold value but its illumination duration when not reaching described time threshold, keeps the work at present state of mobile spectral filter.
5, a kind of control method of mobile spectral filter is characterized in that, said method comprising the steps of:
The mode of operation of mobile spectral filter is set;
According to the mode of operation of described mobile spectral filter, carry out the order of opening, closing mobile spectral filter or automatic switchover mobile spectral filter duty.
6, the control method of mobile spectral filter as claimed in claim 5 is characterized in that, described automatic switchover mobile spectral filter duty specifically comprises:
Illumination threshold value and time threshold when presetting system works under the mobile spectral filter;
Obtain current illumination;
When current illumination equates with described illumination threshold value and illumination duration of current illumination when reaching described time threshold, switch the duty of mobile spectral filter.
7, the control method of mobile spectral filter as claimed in claim 6 is characterized in that, the duty of described mobile spectral filter comprises opening and closing.
8, a kind of control system of mobile spectral filter comprises automatic control module at least, it is characterized in that, and described automatic control module be used to the to automatically switch duty of mobile spectral filter, it comprises:
The handoff parameter storage unit is used to store the handoff parameter of mobile spectral filter, and described handoff parameter comprises illumination threshold value and time threshold;
The signal reading unit is used to read current brightness value;
The switching judging unit is used for that described current brightness value equates with described illumination threshold value and illumination duration of current illumination when reaching described time threshold, sends the indicator signal of switching the mobile spectral filter duty.
9, the control system of mobile spectral filter as claimed in claim 8 is characterized in that, described system further comprises:
Parameter is provided with the interface, is used for the mode of operation parameter that the user is provided with mobile spectral filter;
The user is provided with condition judgment module, the mode of operation parameter of the mobile spectral filter that is used to judge that the user is provided with, and, send the indicator signal of closing or open mobile spectral filter according to the mode of operation parameter of the mobile spectral filter of described setting;
The peripheral circuit module is used for driving the switching of mobile spectral filter duty when receiving that the user is provided with the indicator signal of condition judgment module or automatic control module transmission.
10, the control system of mobile spectral filter as claimed in claim 9 is characterized in that, the mode of operation parameter of described mobile spectral filter comprises opens, closes and automatic mode, and described mobile spectral filter duty comprises the opening and closing of mobile spectral filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100656231A CN101256337A (en) | 2008-01-22 | 2008-01-22 | Control method and system for mobile spectral filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100656231A CN101256337A (en) | 2008-01-22 | 2008-01-22 | Control method and system for mobile spectral filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101256337A true CN101256337A (en) | 2008-09-03 |
Family
ID=39891251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100656231A Pending CN101256337A (en) | 2008-01-22 | 2008-01-22 | Control method and system for mobile spectral filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101256337A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963739A (en) * | 2010-08-24 | 2011-02-02 | 云南金隆伟业电子有限公司 | Method for automatically switching filter |
| CN102111558A (en) * | 2011-02-15 | 2011-06-29 | 杭州海康威视数字技术股份有限公司 | Method and device for automatically switching over optical filter of video camera |
| CN103841409A (en) * | 2012-11-26 | 2014-06-04 | 浙江大华技术股份有限公司 | Detecting method, device and system for switching infrared filter |
| CN103945201A (en) * | 2013-01-21 | 2014-07-23 | 浙江大华技术股份有限公司 | IR-Cut optical filter switching method, device and camera |
| CN110392196A (en) * | 2019-07-23 | 2019-10-29 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN113406661A (en) * | 2021-04-25 | 2021-09-17 | 中国科学院精密测量科学与技术创新研究院 | Multichannel atomic light filtering day and night automatic switching device |
-
2008
- 2008-01-22 CN CNA2008100656231A patent/CN101256337A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963739A (en) * | 2010-08-24 | 2011-02-02 | 云南金隆伟业电子有限公司 | Method for automatically switching filter |
| CN101963739B (en) * | 2010-08-24 | 2012-01-04 | 云南金隆伟业电子有限公司 | Method for automatically switching filter |
| CN102111558A (en) * | 2011-02-15 | 2011-06-29 | 杭州海康威视数字技术股份有限公司 | Method and device for automatically switching over optical filter of video camera |
| CN102111558B (en) * | 2011-02-15 | 2013-07-17 | 杭州海康威视数字技术股份有限公司 | Method and device for automatically switching over optical filter of video camera |
| CN103841409A (en) * | 2012-11-26 | 2014-06-04 | 浙江大华技术股份有限公司 | Detecting method, device and system for switching infrared filter |
| CN103841409B (en) * | 2012-11-26 | 2015-10-14 | 浙江大华技术股份有限公司 | Detection method, Apparatus and system that infrared fileter switches |
| CN103945201A (en) * | 2013-01-21 | 2014-07-23 | 浙江大华技术股份有限公司 | IR-Cut optical filter switching method, device and camera |
| CN103945201B (en) * | 2013-01-21 | 2016-04-13 | 浙江大华技术股份有限公司 | A kind of IR-Cut filter changing method, device and video camera |
| CN110392196A (en) * | 2019-07-23 | 2019-10-29 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN113406661A (en) * | 2021-04-25 | 2021-09-17 | 中国科学院精密测量科学与技术创新研究院 | Multichannel atomic light filtering day and night automatic switching device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101256337A (en) | Control method and system for mobile spectral filter | |
| US9013618B2 (en) | Image pickup apparatus and its control method | |
| CN104461084A (en) | Control device and method | |
| CN102469260A (en) | Input device, input method, and computer readable storage device | |
| CN102082899A (en) | Image processing apparatus, image processing method, program, and recording medium | |
| WO2019023846A1 (en) | Data conversion and capture control method, system, cradle head assembly, and unmanned aerial vehicle system | |
| CN102231797A (en) | Day and night image pick-up device, day and night switching method used for same | |
| CN102938851A (en) | Set-Top-Box-based automatic standby processing method and Set Top Box | |
| JP5704915B2 (en) | Lens system and imaging system having the same | |
| CN204131599U (en) | A kind of automatic monitoring camera head | |
| CN100440941C (en) | A method of image processing and camera device | |
| US20120076481A1 (en) | Lens movement control method and lens movement control apparatus of camera module | |
| CN213754787U (en) | Infrared light close-range switch control system and television | |
| US7023110B2 (en) | Apparatus and method utilizing an AC adaptor port for event triggering | |
| KR101586698B1 (en) | Surveillance camera | |
| WO2021068927A1 (en) | Reloading device and reloading device-based focusing method | |
| US20090195687A1 (en) | Television camera system | |
| CN104580745A (en) | Shooting light fill-in method and device of mobile terminal | |
| CN113660390B (en) | Camera main control board, camera shooting equipment and light supplementing lamp board adapting method | |
| CN102333193A (en) | Terminal equipment | |
| US20080303923A1 (en) | Image pickup apparatus and interchangeable lens | |
| US20040165078A1 (en) | Lens apparatus | |
| CN106154687A (en) | Digital camera aperture drive circuit | |
| JP2007228783A (en) | Constant current control device and image recording device | |
| JP5300286B2 (en) | Lens device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080903 |