CN102196613A - Circuit framework of light-emitting diodes for camera - Google Patents
Circuit framework of light-emitting diodes for camera Download PDFInfo
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- CN102196613A CN102196613A CN2010101389273A CN201010138927A CN102196613A CN 102196613 A CN102196613 A CN 102196613A CN 2010101389273 A CN2010101389273 A CN 2010101389273A CN 201010138927 A CN201010138927 A CN 201010138927A CN 102196613 A CN102196613 A CN 102196613A
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Abstract
The invention discloses a circuit framework of light-emitting diodes for a camera. The light-emitting diodes can emit infrared invisible light and other visible light. The infrared invisible light is used by the camera in an environment with poor light; the visible light is used for illumination; the input end of a power supply is connected with a power supplying device; the output end of the power supplying device is connected with an infrared invisible light emitting diode, a wind blower, a heater, the camera and a power converter through a first connecting point respectively; the output end of the power converter is connected with a visible light emitting diode at a voltage value different from the output voltage of the power supplying device; the first connecting point is connected with a light source sensor and the signal output end of the camera; the light source sensor and the shooting signal of the camera are connected with a comparator through the first connecting point; the comparator inputs the signal into a multiplexer; and the multiplexer outputs the signal to a constant-current control chip to control the infrared invisible light emitting diode and the visible light emitting diode and drive the camera to convert the signal into a color signal or a single-color signal.
Description
Technical field
The present invention is about photographic goods, the light-emitting diode of video camera when special.
Background technology
Utilize the setting of monitor, can reach and check the function that crime and image are searched warrant, therefore the installation site of monitor needs the control relation of adapted space light source and monitor video camera, with prior art, the camera lens bypass of monitor is set up infrared ray invisible light diode and light source detection element, when light source is lower than set point, then infrared ray invisible light diode can be started, auxiliary monitor can present monochromatic clearly image in the environment of light source deficiency; Yet most monitor video camera all have camera coverage the zone that can't contain, as position on or below the monitor, the dead angle that most of just monitors can't be photographed, in the environment of light source deficiency, can judge the position that monitor is installed easily by the red luminous point of infrared ray invisible light diode, and the space on or below the monitor also can't fully be utilized, make the function of monitor still have complete inadequately part, thereby need further improvement.
Summary of the invention
Because the existence of above-mentioned various situations and problem, the creator is based on the development Experience of being engaged in relevant industries for many years and study intensively with great concentration, creates the video camera circuit of LED framework that more meets user's demand then; Promptly be to install the usefulness of visible light diode additional on or below utilizing monitor as illumination, the multi-functional effectiveness of performance monitor.
The invention provides a kind of video camera circuit of LED framework, it comprises a power input for this reason, connects power supply device; The output of this power supply device connects infrared ray invisible light diode, forced draft fan, heater, video camera and power supply changeover device respectively via first tie point; The output of this power supply changeover device connects the visible light diode with the output voltage values that is different from power supply device.
The video camera circuit of LED framework of this creation, system is connected to the input of power supply device with AC power, export fixing dc voltage value to infrared ray invisible light diode, video camera, forced draft fan, heater and power supply changeover device by power supply device, the dc voltage value that will be different from power supply device through power supply changeover device inputs to the visible light diode.
This creation for make monitor can make full use of on or below the space, its illuminating visible light diode system be arranged at integrally-built on or below, utilize the signal of light source detector or the image pickup signal of video camera to input to comparator, comparator is judged high levels or low level state, comparator signal is inputed to multiplexer, to decide Current Control chip controls infrared ray invisible light diode and visible light diode it can be opened or close simultaneously simultaneously by multiplexer output high levels or low level signal; So when light source was not enough, front end signal made multiplexer to visible light diode output high levels signal, allows the visible light diode open; This moment, packaged type infrared ray filter was removed, export high levels signal to video camera simultaneously and transfer the colour phhotograpy signal to monochromatic photography signal to drive video camera, therefore in the environment of light source deficiency, monitor just can be worked as and is that lighting device uses, and can not influence the photoreceptor signal of light source detector or video camera, not only make monitor have camera function, use as illumination in the space that also can make full use of on or below the monitor; Again, reach the purpose of camouflage, can reach at the glass or the plastics of the unidirectional printing opacity of video camera the place ahead device as making monitor.
Description of drawings
Fig. 1: be the schematic diagram of this creation power supply supply
Fig. 2: be the circuit framework figure of this creation
Fig. 3: be this creation light source detector signal and image pickup signal control schematic diagram
The primary clustering symbol description
1 ac power input end, 11 power supply device inputs
2 power supply devices (power supply unit), 201 first tie points
202 second tie points
21 power supply changeover devices (Converter)
3 video cameras (camera), 31 image pickup signals (camera signal)
4 light source detectors (photodiode)
5 comparators (comparator)
52 multiplexers (multiplexer)
521 packaged type infrared ray filters (IR cut removable)
6 decide Current Control chip (rated current control IC)
61 infrared ray invisible light diodes (infrared emitting diode)
611 first variable resistors
71 visible light diodes (Light Emitting Diode)
711 the second adjustable resistances
8 forced draft fans (blower), 81 first temperature detect switch (TDS)s
9 heaters (heater), 91 second temperature detect switch (TDS)s
Embodiment
Below, adopt preferable feasible embodiment now with regard to the structure function of this creation, and after cooperating graphic being described in more detail in, in order to do the understanding that can increase this creation; See also shown in drawing among Fig. 1 to 3, this creation is a kind of video camera circuit of LED framework, wherein:
Please refer to Fig. 1, shown in the schematic diagram of this creation power supply supply, ac power input end 1 is the power supply device input 11 that is connected to power supply device 2 through fuse unit, by the dc voltage value of 12 volts of power supply device 2 outputs to infrared ray invisible light diode 61, video camera 3, forced draft fan 8, heater 9 and power supply changeover device 21, seeing through that power supply changeover device 21 boosts 12 volts dc voltage value is to input to visible light diode 71 behind 24 volts the dc voltage value, makes and is used two kinds of different dc voltage values in the same circuit framework simultaneously.
Please refer to shown in Fig. 2 to 3, the output of power supply device 2 connects infrared ray invisible light diode 61, forced draft fan 8, heater 9, video camera 3 and power supply changeover device 21 respectively via first tie point 201; Wherein the image pickup signal 31 of light source detector 4 and video camera 3 is connected to comparator 5 via first tie point 201; Utilizing light source detector 4 that the light source variation is converted to voltage change signal inputs to comparator 5 or image pickup signal 31 is inputed to comparator 5, judge that with this comparator 5 high levels or low level output signal input to multiplexer 52, and open or close decide Current Control chip 6 control infrared ray invisible light diodes 61 and visible light diode 71 by multiplexer 52 output high levels or low level signal, drive video camera 3 simultaneously and change colour phhotograpy signal or the monochromatic signal of photographing into; When light source is lower than set point, light source detector 4 signals or the image pickup signal 31 of front end input to comparator 5, comparator 5 inputs to multiplexer 52 with signal, start simultaneously to decide Current Control chip 6 control infrared ray invisible light diodes 61 and visible light diode 71 simultaneously, also can utilize first variable resistor 611 and the second adjustable resistance 711 to adjust the brightness of infrared ray invisible light diode 61 and visible light diode 71 respectively; Packaged type infrared ray filter 521 then removes during multiplexer 52 output high levels signals, and exporting high levels signal to video camera 3 driving video cameras 3 simultaneously is monochromatic photography signal with the colour phhotograpy conversion of signals, makes picture transfer black and white to by colour; And light source is when sufficient, multiplexer 52 output low level signals are put into packaged type infrared ray filter 521, controlling infrared ray invisible light diode 61 and visible light diode 71 simultaneously closes, this moment, multiplexer 52 output low level signals were to video camera 3, driving video camera 3 is the colour phhotograpy signal with the monochrome conversion of signals of photographing, and picture transfers colour to by black and white; This creation is in response to different weathers and regulates the monitor inside temperature in addition, other is provided with forced draft fan 8 and heater 9, the temperature that cooperates first temperature detect switch (TDS) 81 and second temperature detect switch (TDS) 91 to set, first temperature detect switch (TDS) 81 can start forced draft fan 8 when the monitor inside temperature is higher than desired temperature, utilizes the air circulation principle to make hot gas be discharged the effect that reaches cooling by pore; Then can see through second temperature detect switch (TDS) 91 when the glass in monitor video camera the place ahead or plastics inner temperature are lower than desired temperature starts heaters 9 and reach defrosting function.
The above person only is the preferable enforcement example of one of this creation, when can not with as the scope that limits this creation enforcements, equalization variation or modification that Fan Yiben creation claim is done must belong in the scope that this creation patent contains.
Claims (5)
1. video camera circuit of LED framework is characterized in that:
One power input connects power supply device; The output of this power supply device connects infrared ray invisible light diode, forced draft fan, heater, video camera and power supply changeover device respectively via first tie point; The output of this power supply changeover device connects the visible light diode with the output voltage values that is different from power supply device.
2. video camera circuit of LED framework as claimed in claim 1, it is characterized in that, wherein, first tie point connects the signal output part of light source detector and video camera, the image pickup signal of this light source detector and video camera is connected to comparator via first tie point, this comparator inputs to multiplexer with signal, by the multiplexer output signal to decide Current Control chip controls infrared ray invisible light diode and visible light diode; Drive video camera simultaneously and change colour signal or monochrome signal into.
3. video camera circuit of LED framework as claimed in claim 1 is characterized in that, its middle infrared (Mid-IR) invisible light diode connects first variable resistor; The visible light diode connects the second adjustable resistance.
4. video camera circuit of LED framework as claimed in claim 1 is characterized in that wherein, forced draft fan connects first temperature detect switch (TDS); Heater connects second temperature detect switch (TDS).
5. video camera circuit of LED framework as claimed in claim 1, it is characterized in that, wherein, power supply device provides dc voltage value that 12 volts dc voltage value to the first tie point and this power supply changeover device of power supply changeover device provide 24 volts to the visible light diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101389273A CN102196613A (en) | 2010-03-19 | 2010-03-19 | Circuit framework of light-emitting diodes for camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101389273A CN102196613A (en) | 2010-03-19 | 2010-03-19 | Circuit framework of light-emitting diodes for camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102196613A true CN102196613A (en) | 2011-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101389273A Pending CN102196613A (en) | 2010-03-19 | 2010-03-19 | Circuit framework of light-emitting diodes for camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102196613A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109474788A (en) * | 2017-09-08 | 2019-03-15 | 超威半导体公司 | For colored and IR camera sensor lighting control technique |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11252424A (en) * | 1998-03-04 | 1999-09-17 | Sony Corp | Video light device |
| CN200990672Y (en) * | 2006-12-26 | 2007-12-12 | 黄德胜 | Long-distance monitoring device |
-
2010
- 2010-03-19 CN CN2010101389273A patent/CN102196613A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11252424A (en) * | 1998-03-04 | 1999-09-17 | Sony Corp | Video light device |
| CN200990672Y (en) * | 2006-12-26 | 2007-12-12 | 黄德胜 | Long-distance monitoring device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109474788A (en) * | 2017-09-08 | 2019-03-15 | 超威半导体公司 | For colored and IR camera sensor lighting control technique |
| CN109474788B (en) * | 2017-09-08 | 2021-11-30 | 超威半导体公司 | Illumination control techniques for color and IR camera sensors |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110921 |