CN105357424A - Camera controlled circuit and camera - Google Patents
Camera controlled circuit and camera Download PDFInfo
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- CN105357424A CN105357424A CN201510774845.0A CN201510774845A CN105357424A CN 105357424 A CN105357424 A CN 105357424A CN 201510774845 A CN201510774845 A CN 201510774845A CN 105357424 A CN105357424 A CN 105357424A
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- electric capacity
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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
- H04N23/50—Constructional details
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Abstract
The invention provides a camera controlled circuit and a camera, belonging to the field of control. The camera controlled circuit performs specific combination on different functions of modules, has a simpler design and improves efficiency due to specific functions of all the different functions of modules, thereby making users more satisfied.
Description
Technical field
The invention belongs to control field, particularly relate to a kind of camera control circuit and camera.
Background technology
That camera is used for the mechanism of Perceived control mating plate effective exposure time.Be an important component part of camera, its structure, form and function weigh a key factor of camera class.Generally speaking time range is the bigger the better.The low applicable object clapped in motion of number of seconds, certain camera is just emphasized by 1/16000 second, easily to catch the target of movement rapidly the soonest.Not excessive you will clap is the bustling with vehicles of night, and the time will be elongated, and the water flow effects in common photo as tiffany is also with just taking at a slow speed.
The design on control circuit of current traditional camera is complicated, and efficiency is low, can not meet the demand of user.
Summary of the invention
The invention provides a kind of camera control circuit, the design on control circuit being intended to solve existing camera is complicated, inefficient problem.
In order to solve the problems of the technologies described above, the present invention is achieved in that a kind of camera control circuit, comprise control signal source I/O1 and Micro-processor MCV, described camera control circuit is connected with power supply, prefabricated voltage source and photo-sensitive cell, and described camera control circuit comprises:
First input end and the second input are connected with the output in described control signal source and the output of described Micro-processor MCV respectively, control end is connected with the control output end of described Micro-processor MCV, power end is connected with the first voltage output end of described power supply, selects described control signal source or described Micro-processor MCV as the main control module of camera source according to default control condition in camera exposure time and described Micro-processor MCV;
First input end is connected with the signal output part of described prefabricated voltage source and the first output of described power supply, second input is connected with the output of described main control module, power end is connected with the first voltage output end of described power supply, and the camera source signal that the signal export described prefabricated voltage source and described main control module export carries out presetting calculating and computing module result of calculation exported as control signal;
Input is connected with the output of described computing module, first power end, second source end and the 3rd power end are connected with the bias voltage output of the second voltage output end of described power supply, the tertiary voltage output of described power supply and described prefabricated voltage source respectively, output is connected with described photo-sensitive cell, receives described control signal and generates the main control module of electronic impulse.
Present invention also offers a kind of camera, described camera comprises above-mentioned arbitrary described camera control circuit.
In the present invention, the module of difference in functionality specifically combines by camera control circuit, and in conjunction with the specific function of each functional module, makes camera control circuit design simpler and improve efficiency, promote the satisfaction of user.
Accompanying drawing explanation
Fig. 1 is the function structure chart of the camera control circuit that the embodiment of the present invention provides;
Fig. 2 is the circuit structure diagram of the camera control circuit that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Below in conjunction with specific embodiment, specific implementation of the present invention is described in detail:
Fig. 1 shows the modular structure of the camera control circuit that the embodiment of the present invention provides, and this camera control circuit is applied in camera, and for convenience of explanation, only list the part relevant to the embodiment of the present invention, details are as follows:
As shown in Figure 1, the camera control circuit that the embodiment of the present invention provides comprises control signal source 101 and Micro-processor MCV, camera control circuit is preferably bias voltage source with power supply 201, prefabricated voltage source 202() and photo-sensitive cell 203 be connected, camera control circuit comprises:
First input end and the second input are connected with the output I/O1 in control signal source 101 and the output Micro-processor MCV I/O2 of Micro-processor MCV respectively, control end is connected with the control output end Micro-processor MCV I/O3 of Micro-processor MCV, power end is connected with the first voltage output end VCC1 of power supply 201, selects control signal source 101 or Micro-processor MCV as the main control module 301 of camera source according to default control condition in camera exposure time and Micro-processor MCV;
First input end is connected with the signal output part I/O4 of prefabricated voltage source 202 and the first output of power supply 201, second input is connected with the output of main control module 301, power end is connected with the first voltage output end of power supply 201, and the camera source signal that the signal export prefabricated voltage source 202 and main control module 301 export carries out presetting calculating and the computing module 302 result of calculation exported as control signal;
Input is connected with the output of computing module 302, first power end, second source end and the 3rd power end are connected with the second voltage output end VCC2, the tertiary voltage output VCC3 of power supply 201 of power supply 201 and the bias voltage output VAB of prefabricated voltage source 202 respectively, output is connected with photo-sensitive cell 203, receives this control signal and generates the main control module 303 of electronic impulse.
In embodiments of the present invention, select by using multiple source, the camera exposure time is more accurate, more can meet the technical property requirements of camera under different environment for use, after increasing main control module, source can be selected more flexibly between Micro-processor MCV and control signal source 101, the selection in source is decided according to different application scenarioss, as: when the camera exposure time is the multiple proportion of one-row pixels cycle time (HD), use control signal source just very convenient as camera source, now just select control signal source 101 to provide camera source; When the camera exposure time is not the multiple of AFE one-row pixels cycle time, or the time for exposure be greater than AFE when exporting the time of a two field picture (VD), use Micro-processor MCV to provide camera source just very practical.
Further, in embodiments of the present invention, computing module 302 mainly plays defencive function, and realize when prefabricated voltage source exports unstable or output abnormality, circuit is forbidden exporting pulse automatically above the PIN of correspondence, realizes protection, avoids damaging.After increasing this enable module, equipment work is safer, more stable.
As one embodiment of the invention, main control module 301 is digital switch chip U1;
The first input end NO of digital switch chip U1 and the second input NC is respectively first input end and second input of main control module 301, the control end EN of digital switch chip U1 is the control end of main control module 301, the earth terminal GND ground connection of digital switch chip U1, the public connecting end COM of digital switch chip U1 is the output of main control module 301, and the power end VCC of digital switch chip U1 is the power end of main control module 301.
As one embodiment of the invention, computing module 302 comprises:
Two inputs and door chip U2, the first resistance R1 and the first electric capacity C1;
Two inputs and the first input end A of door chip U2 are the first input end of computing module 302, first resistance R1 is connected between the first input end A of two inputs and door chip U2 and the first voltage output end VCC1 of power supply 201, two inputs and second input of door chip U2 are the second input of computing module 302, two inputs and the power end of door chip U2 are the power end of computing module 302, between the power end VCC that first electric capacity C1 is connected to two inputs and door chip U2 and ground, the earth terminal GND ground connection of two inputs and door chip U2, two inputs are the output of computing module with the output Y of door chip U2.
As one embodiment of the invention, main control module 303 comprises:
Second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th electric capacity C5, the 6th electric capacity C6, the first voltage-stabiliser tube BD1, the second voltage-stabiliser tube BD2, NPN type triode Q1 and PNP type triode Q2;
The first end of the second electric capacity C2 and the first end of the 3rd electric capacity C3 are the input of main control module 303, second end of the second electric capacity C2 is connected with the first end of the base stage of PNP type triode Q2 and the second resistance R2, second end of the second resistance R2 is connected with the first end of the emitter of PNP type triode Q2 and the 4th electric capacity C4, second end of the second resistance R2 is the first power end of main control module 303, the second end ground connection of the 4th electric capacity C4, second end of the 3rd electric capacity C3 and the first end of the 3rd resistance R3, the negative electrode of the first voltage-stabiliser tube BD1 and the base stage of NPN type triode Q1 connect, the second end ground connection of the 3rd resistance R3, the anode of the first voltage-stabiliser tube BD1 is connected with the first end of the first end of the 4th resistance R4 and the 5th electric capacity C5, the anode of the first voltage-stabiliser tube BD1 is the second source end of main control module 303, second end of the 4th resistance R4 is connected with the emitter of NPN type triode Q1, the second end ground connection of the 5th electric capacity C5, the collector electrode of NPN type triode Q1 and the collector electrode of PNP type triode Q2 are connected to the first end of the 6th electric capacity C6 altogether, second end of the 6th electric capacity C6 is connected with the negative electrode of the first end of the 5th resistance R5 and the second voltage-stabiliser tube BD2, second end of the 6th electric capacity C6 is the output of main control module 303, the anode of the second voltage-stabiliser tube BD2 is the 3rd power end of main control module 303.
Below the operation principle of the camera control circuit that the embodiment of the present invention provides is described:
In embodiments of the present invention, in Micro-processor MCV, the priority in electronic selection source has been preset according to the camera exposure time, select control signal source 101 or Micro-processor MCV as camera source according to actual camera time for exposure and pre-set programs, export after selecting process by digital switch chip U1, the camera source signal exported by the signal that exports prefabricated voltage source and digit chip U1 is carried out and computing, when arbitrary abnormal signal in two signals, two inputs and door chip U2 are by no-output, camera control circuit is protected, computing module 302 export control signal be input in main control module 303 generate electronic pulse signal drive photo-sensitive cell 203 work, make the image effect that finally obtains better.
The embodiment of the present invention additionally provides a kind of camera, and this camera comprises above-mentioned camera control circuit.
In the present invention, camera control circuit according to camera exposure time and pre-conditioned selection control signal source or Micro-processor MCV as camera source, use flexibly, expand application scenarios, the module of difference in functionality specifically combines by camera control circuit, and in conjunction with the specific function of each functional module, make camera control circuit design simpler and improve efficiency, promote the satisfaction of user.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a camera control circuit, comprises control signal source and Micro-processor MCV, and described camera control circuit is connected with power supply, prefabricated voltage source and photo-sensitive cell, it is characterized in that, described camera control circuit comprises:
First input end and the second input are connected with the output in described control signal source and the output of described Micro-processor MCV respectively, control end is connected with the control output end of described Micro-processor MCV, power end is connected with the first voltage output end of described power supply, selects described control signal source or described Micro-processor MCV as the main control module of camera source according to the default control condition in camera exposure time and described Micro-processor MCV;
First input end is connected with the signal output part of described prefabricated voltage source and the first output of described power supply, second input is connected with the output of described main control module, power end is connected with the first voltage output end of described power supply, the camera source signal that the signal export described prefabricated voltage source and described main control module export carries out presetting and calculates, and using computing module that result of calculation exports as control signal;
Input is connected with the output of described computing module, first power end, second source end and the 3rd power end are connected with the bias voltage output of the second voltage output end of described power supply, the tertiary voltage output of described power supply and described prefabricated voltage source respectively, output is connected with described photo-sensitive cell, receives described control signal and generates the main control module of electronic impulse.
2. camera control circuit as claimed in claim 1, it is characterized in that, described main control module is digital switch chip U1;
The first input end of described digital switch chip U1 and the second input are respectively first input end and second input of described main control module, the control end of described digital switch chip U1 is the control end of described main control module, the earth terminal ground connection of described digital switch chip U1, the public connecting end of described digital switch chip U1 is the output of described main control module, and the power end of described digital switch chip U1 is the power end of described main control module.
3. camera control circuit as claimed in claim 1, it is characterized in that, described computing module comprises:
Two inputs and door chip U2, the first resistance R1 and the first electric capacity C1;
Described two inputs and the first input end of door chip U2 are the first input end of described computing module, between the first input end that described first resistance R1 is connected to described two inputs and door chip U2 and the first voltage output end of described power supply, described two inputs and second input of door chip U2 are the second input of described computing module, described two inputs and the power end of door chip U2 are the power end of described computing module, between the power end that described first electric capacity C1 is connected to described two inputs and door chip U2 and ground, the earth terminal ground connection of described two inputs and door chip U2, described two inputs and the output of door chip U2 are the output of described computing module.
4. camera control circuit as claimed in claim 1, it is characterized in that, described main control module comprises:
Second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th electric capacity C5, the 6th electric capacity C6, the first voltage-stabiliser tube BD1, the second voltage-stabiliser tube BD2, NPN type triode Q1 and PNP type triode Q2;
The first end of described second electric capacity C2 and the first end of described 3rd electric capacity C3 are the input of described main control module, described second end of the second electric capacity C2 is connected with the first end of the base stage of described PNP type triode Q2 and described second resistance R2, described second end of the second resistance R2 is connected with the first end of the emitter of described PNP type triode Q2 and described 4th electric capacity C4, second end of described second resistance R2 is the first power end of described main control module, the second end ground connection of described 4th electric capacity C4, second end of described 3rd electric capacity C3 and the first end of described 3rd resistance R3, the negative electrode of described first voltage-stabiliser tube BD1 and the base stage of described NPN type triode Q1 connect, the second end ground connection of described 3rd resistance R3, the anode of described first voltage-stabiliser tube BD1 is connected with the first end of the first end of described 4th resistance R4 and described 5th electric capacity C5, the anode of described first voltage-stabiliser tube BD1 is the second source end of described main control module, second end of described 4th resistance R4 is connected with the emitter of described NPN type triode Q1, the second end ground connection of described 5th electric capacity C5, the collector electrode of described NPN type triode Q1 and the collector electrode of described PNP type triode Q2 are connected to the first end of described 6th electric capacity C6 altogether, second end of described 6th electric capacity C6 is connected with the negative electrode of the first end of described 5th resistance R5 and described second voltage-stabiliser tube BD2, second end of described 6th electric capacity C6 is the output of described main control module, the anode of described second voltage-stabiliser tube BD2 is the 3rd power end of described main control module.
5. a camera, is characterized in that, described camera comprise as arbitrary in claim 1-4 as described in camera control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510774845.0A CN105357424A (en) | 2015-11-13 | 2015-11-13 | Camera controlled circuit and camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510774845.0A CN105357424A (en) | 2015-11-13 | 2015-11-13 | Camera controlled circuit and camera |
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| Publication Number | Publication Date |
|---|---|
| CN105357424A true CN105357424A (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510774845.0A Pending CN105357424A (en) | 2015-11-13 | 2015-11-13 | Camera controlled circuit and camera |
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| CN (1) | CN105357424A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625534A (en) * | 2012-03-20 | 2012-08-01 | 惠州Tcl移动通信有限公司 | Flash lamp control device for mobile terminal |
| CN202931492U (en) * | 2012-11-08 | 2013-05-08 | 康佳集团股份有限公司 | Signal modulation apparatus for modulating 3D signal to power supply terminal |
| CN103488267A (en) * | 2012-06-12 | 2014-01-01 | 鸿富锦精密工业(武汉)有限公司 | Power control circuit |
| CN203632767U (en) * | 2013-11-15 | 2014-06-04 | 深圳市朗驰欣创科技有限公司 | CCD electronic shutter generation circuit and CCD camera |
-
2015
- 2015-11-13 CN CN201510774845.0A patent/CN105357424A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625534A (en) * | 2012-03-20 | 2012-08-01 | 惠州Tcl移动通信有限公司 | Flash lamp control device for mobile terminal |
| CN103488267A (en) * | 2012-06-12 | 2014-01-01 | 鸿富锦精密工业(武汉)有限公司 | Power control circuit |
| CN202931492U (en) * | 2012-11-08 | 2013-05-08 | 康佳集团股份有限公司 | Signal modulation apparatus for modulating 3D signal to power supply terminal |
| CN203632767U (en) * | 2013-11-15 | 2014-06-04 | 深圳市朗驰欣创科技有限公司 | CCD electronic shutter generation circuit and CCD camera |
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