CN202334711U - Optical fiber switch control circuit for monitoring camera - Google Patents
Optical fiber switch control circuit for monitoring camera Download PDFInfo
- Publication number
- CN202334711U CN202334711U CN2011204220337U CN201120422033U CN202334711U CN 202334711 U CN202334711 U CN 202334711U CN 2011204220337 U CN2011204220337 U CN 2011204220337U CN 201120422033 U CN201120422033 U CN 201120422033U CN 202334711 U CN202334711 U CN 202334711U
- Authority
- CN
- China
- Prior art keywords
- pin
- switching circuit
- control switching
- rig camera
- relay
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Transforming Light Signals Into Electric Signals (AREA)
Abstract
The utility model discloses an optical fiber switch control circuit for a monitoring camera, which comprises a controller, a triode Q2, a relay and a wiring terminal, wherein the controller is used for providing a set delay parameter and outputting a digital delay signal to control the switching of an optical filter according to the delay parameter; the base electrode of the triode Q2 is connected with the controller and the emitter electrode of the triode Q2 is grounded, two ends of a coil in the relay are respectively connected with the collector electrode of the triode Q2 and a +12V power supply, the fourth pin and the sixth pin of the relay are normally closed contacts, the fourth pin and the eighth pin of the relay are normally open contacts; the first pin, the second pin and the third pin of the wiring terminal are respectively connected with the fourth pin, the sixth pin and the eighth pin of the relay; and the second pin and the third pin of the wiring terminal are respectively connected with the optical fiber through connecting wires. According to the optical fiber switch control circuit, the working stability and the reliability of the monitoring camera are improved, and the advantages of simple structure and low cost are obtained.
Description
Technical field
The utility model relates to a kind of control circuit, especially relates to a kind of filter control switching circuit that is used for rig camera.
Background technology
Along with the reinforcement of security personnel consciousness, the increasing various aspects that are applied to live of rig camera, the thing followed are that the working stability performance, useful life to rig camera etc. had higher requirement.
Such as, rig camera by day or the sufficient environment of illumination when using down, it is better to catch light effect, and it is clear to form images.If in night or rather dark environment, use rig camera, then because insufficient light causes image blur.Therefore, the rig camera with infrared night vision function occurs thereupon, produces infrared ray through the LDE infrared lamp and realizes the infrared night vision function.
Opening the infrared night vision function need open the LED infrared lamp and control the filter switching.Then; In the control circuit of present rig camera, the Synchronization Control filter switches when opening the LED infrared lamp, is easy to generate misoperation: such as; When an of short duration light under the night environment, occurring; When control circuit detects light,, then will cause misoperation and make the infrared night vision disabler if filter is switched in this moment control.
The utility model content
The utility model proposes a kind of filter control switching circuit that is used for rig camera, and filter is postponed control, has solved that filter in the present rig camera switches easy misoperation and the technical problem that causes the infrared night vision disabler.
The utility model adopts following technical scheme to realize: a kind of filter control switching circuit that is used for rig camera, and it comprises: be used to provide the setting delay parameter, and export the controller that digital delay signal controlling filter switches according to delay parameter; Base stage connects the triode Q2 of controller, grounded emitter; Relay, wherein, collector electrode that the two ends of coil connect triode Q2 respectively in the relay and+12V power supply, and the 4th pin and the 6th pin are normally-closed contact in the relay, the 4th pin and the 8th pin are normally opened contact; Binding post with 3 wiring, the 1st pin of binding post, the 2nd pin and the 3rd pin are connected the 4th pin, the 6th pin and the 8th pin of relay respectively; The 2nd pin of binding post, the 3rd pin connect filter through connecting line respectively.
Wherein, controller is a programmable logic device.Such as, controller is MCU, ARM, DSP, PLC or PLD.
Wherein, said control switching circuit also comprises the testing circuit that is used to detect the variation of rig camera operational environment.Specifically, said testing circuit comprises: an end connects the light-sensitive element of controller, other end ground connection; And connect an external power source after the light-sensitive element serial connection divider resistance.Wherein, light-sensitive element is arranged on the shell of rig camera.Such as, light-sensitive element is photo resistance or photodiode.
Wherein, said control switching circuit also comprises the voltage stabilizing circuit that constant DC voltage is provided.Specifically, voltage stabilizing circuit comprises a three terminal regulator, is connected at least one filter between the input power supply of its input connection+12V, output and ground.
Compared with prior art, the utlity model has following beneficial effect:
The utility model sends the digital delay signal by controller according to delay parameter and controls the filter switching, with the probability that reduces misoperation greatly, thus the job stability and the reliability of raising rig camera; And controller is a programmable logic device, and delay parameter can be provided with by the user according to actual needs at random, provides the user to use the convenient degree of rig camera.In addition, the utility model also have circuit structure simple, realize the lower advantage of cost.
Description of drawings
Fig. 1 is the functional circuit module sketch map of the utility model;
Fig. 2 is the circuit diagram of Fig. 1 middle controller;
Fig. 3 is the sketch map of voltage stabilizing circuit among Fig. 1;
Fig. 4 is the sketch map of testing circuit among Fig. 1;
Fig. 5 is the sketch map of control switching circuit among Fig. 1.
Embodiment
As shown in Figure 1, the utility model proposes a kind of infrared night vision intelligence control circuit of rig camera, and it comprises: controller 10; Constant DC voltage (+5V) voltage stabilizing circuit 20 is provided; Be used for testing environment and change, when darkness or dark surrounds, produce the testing circuit 30 of high level or level detection signal, it connects controller 10; Be used for the control switching circuit 40 according to the testing result control filter switching of testing circuit 30, it connects controller 10.
In conjunction with shown in Figure 2, chip U2 is a controller 10, and it adopts programmable logic device, realizes such as chips such as single-chip microcomputer (MCU), ARM, DSP, PLC, PLD, is convenient to the hack of Control Parameter.Wherein, the 1st pin of chip U2 is a power end, 20 outputs of connection voltage stabilizing circuit+the 5V power supply, the 2nd pin (RELAY) connects control switching circuit 40, the 3 pin (MOS) and connects control switching circuit 40; The 6th pin (PHOTO) connection detection circuit 30.
In conjunction with shown in Figure 3, voltage stabilizing circuit 20 comprises: three terminal regulator U1; + 12V power supply is connected the input (the 3rd pin) of three terminal regulator U1 through the current-limiting resistance R8 of serial connection, and is connected filter C3 between the input of three terminal regulator U1 and the ground; Constant+5V the power supply of the output of three terminal regulator U1 (the 1st pin) output, and be connected filter C1 and filter C2 between the output of three terminal regulator U1 and the ground.Wherein, the output of three terminal regulator U1 connects the 1st pin of chip U2, i.e. three terminal regulator U1 output+the 5V power supply is that chip U2 supplies power.
In conjunction with shown in Figure 4, testing circuit 30 comprises: an end connects the 6th pin (PHOTO) of chip U2, the light-sensitive element P1 of other end ground connection; And light-sensitive element P1 is connected in series the output that connects three terminal regulator U1 after two the divider resistance R4, R3 successively.Such as, light-sensitive element P1 is photo resistance or photodiode etc.
Wherein, Draw the two ends that 2 long leads are connected light-sensitive element P1 respectively from the 6th pin, the ground wire of chip U2; And light-sensitive element P1 is arranged on the shell of rig camera, such as the front side lens position of rig camera, changes with the light of preparing induction camera lens position.
In a preferred embodiment, light-sensitive element P1 is photo resistance.By day or under the stronger environment of light, the resistance of photo resistance is very little, at this moment, the 6th pin of chip U2 is a low level; Under night or dark surrounds, the resistance of photo resistance is bigger, at this moment, the output of three terminal regulator U1 output+the 5V power supply produces a dividing potential drop in photo resistance, and the 6th pin of chip U2 is a high level.Therefore, the level that chip U2 detects the 6th pin changes, and can learn the variation of rig camera operational environment.
In addition,, can improve the stability of light-sensitive element P1, make testing circuit 30 more accurate for the judgement of operational environment because testing circuit 30 uses voltage stabilizing circuit 20 power supplies.
In conjunction with shown in Figure 5, control switching circuit 40 comprises: the 2nd pin (RELAY) of chip U2 is through the base stage of current-limiting resistance R1 connection triode Q2, and the grounded emitter of this triode Q2, collector electrode are through sustained diode 1 connection+12V power supply; And the collector electrode of triode Q2 ,+the 12V power supply connects the two ends (i.e. the 1st pin and the 2nd pin) of coil in the relay K 1 respectively, and the 4th pin and the 6th pin are normally-closed contact in the relay K 1, and when the 4th pin and the 6th pin cut, the 4th pin will be connected closure with the 8th pin; And the 4th pin of relay K 1 connects the 1st pin of binding post J1, and the 6th pin of relay K 1, the 8th pin connect the 2nd pin, the 3rd pin of binding post J1 respectively.
The 1st pin of binding post J1 is a centre cap; The 2nd pin of binding post J1, the 3rd pin lay respectively at the 1st pin about (or up and down) both sides, and the 2nd pin of binding post J1, the 3rd pin connect filter through the shooting cavity that connecting line extends to rig camera respectively.Like this, when the 6th pin of the 4th pin of relay K 1 and relay K 1 or the 8th pin are closed, will spurs filter (up or down) motion to the left or to the right, thereby realize the filter switching by the 2nd pin of binding post J1, the connecting line of the 3rd pin.
When testing circuit 30 detects darkness or dark surrounds; Send one by controller 10 (the 2nd pin (RELAY) of chip U2) and be the digital delay signal of high level; Triode Q2 conducting makes after the 4th pin and the 6th pin cut in the relay K 1 the 4th pin and the 8th pin closure in the relay K 1; Thereby will spur the filter motion through the 2nd pin of binding post J1, the connecting line of the 3rd pin, realize that filter switches.
Wherein, the concrete delay parameter of digital delay signal can be set in chip U2.The purpose that delay is set is to reduce misoperation: such as, when an of short duration light under the night environment, occurring, when testing circuit 30 detects light,, then will cause misoperation and make the infrared night vision disabler if this moment, filter was switched in control.Therefore, can be provided with a delay parameter (such as, 60 seconds), through behind the delay parameter, if when testing circuit 30 still detects light, this moment, filter was switched in control again, then will reduce the probability of misoperation greatly.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.
Claims (9)
1. filter control switching circuit that is used for rig camera is characterized in that said control switching circuit comprises:
Be used to provide the setting delay parameter, and export the controller that digital delay signal controlling filter switches according to delay parameter;
Base stage connects the triode Q2 of controller, grounded emitter;
Relay, wherein, collector electrode that the two ends of coil connect triode Q2 respectively in the relay and+12V power supply, and the 4th pin and the 6th pin are normally-closed contact in the relay, the 4th pin and the 8th pin are normally opened contact;
Binding post with 3 wiring, the 1st pin of binding post, the 2nd pin and the 3rd pin are connected the 4th pin, the 6th pin and the 8th pin of relay respectively;
The 2nd pin of binding post, the 3rd pin connect filter through connecting line respectively.
2. according to the said filter control switching circuit that is used for rig camera of claim 1, it is characterized in that controller is a programmable logic device.
3. according to the said filter control switching circuit that is used for rig camera of claim 2, it is characterized in that controller is MCU, ARM, DSP, PLC or PLD.
4. according to the said filter control switching circuit that is used for rig camera of claim 1, it is characterized in that said control switching circuit also comprises the testing circuit that is used to detect the variation of rig camera operational environment.
5. according to the said filter control switching circuit that is used for rig camera of claim 4, it is characterized in that said testing circuit comprises: an end connects the light-sensitive element of controller, other end ground connection; And connect an external power source after the light-sensitive element serial connection divider resistance.
6. according to the said filter control switching circuit that is used for rig camera of claim 5, it is characterized in that light-sensitive element is arranged on the shell of rig camera.
7. according to the said filter control switching circuit that is used for rig camera of claim 5, it is characterized in that light-sensitive element is photo resistance or photodiode.
8. according to any one said filter control switching circuit that is used for rig camera of claim 1-7, it is characterized in that the said control switching circuit of control switching circuit also comprises the voltage stabilizing circuit that constant DC voltage is provided.
9. the said according to Claim 8 filter control switching circuit that is used for rig camera is characterized in that voltage stabilizing circuit comprises a three terminal regulator, is connected at least one filter between the input power supply of its input connection+12V, output and ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204220337U CN202334711U (en) | 2011-10-31 | 2011-10-31 | Optical fiber switch control circuit for monitoring camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204220337U CN202334711U (en) | 2011-10-31 | 2011-10-31 | Optical fiber switch control circuit for monitoring camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202334711U true CN202334711U (en) | 2012-07-11 |
Family
ID=46446673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204220337U Expired - Fee Related CN202334711U (en) | 2011-10-31 | 2011-10-31 | Optical fiber switch control circuit for monitoring camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202334711U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048852A (en) * | 2012-12-14 | 2013-04-17 | 广东安居宝数码科技股份有限公司 | Conversion driving circuit for mobile optical filters |
| CN105204565A (en) * | 2015-10-13 | 2015-12-30 | 华北电力大学（保定） | Schedulable load high-grade measuring and controlling terminal |
-
2011
- 2011-10-31 CN CN2011204220337U patent/CN202334711U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048852A (en) * | 2012-12-14 | 2013-04-17 | 广东安居宝数码科技股份有限公司 | Conversion driving circuit for mobile optical filters |
| CN105204565A (en) * | 2015-10-13 | 2015-12-30 | 华北电力大学（保定） | Schedulable load high-grade measuring and controlling terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101835318B (en) | Intelligent detector of LED street lamp and working method thereof | |
| CN209514003U (en) | Relay contact state detection circuit and its condition detecting system, electric car | |
| CN103368550A (en) | Light-operated switch manufactured through voltage comparator | |
| CN202331701U (en) | Universal relay module of automatic fire alarm system | |
| CN202903330U (en) | Ambient light detection circuit for camera | |
| CN202334711U (en) | Optical fiber switch control circuit for monitoring camera | |
| CN102339073A (en) | Infrared night vision intelligent control circuit of monitoring video camera | |
| CN104717777A (en) | Human body infrared induction lamp | |
| CN204595541U (en) | Novel rail Miniature Power Unit hardware control platform | |
| CN110324943A (en) | LED light string control system | |
| CN103237381B (en) | For filter commutation circuit and the filter changing method of infrared monitoring | |
| CN105774636B (en) | The rearmounted fog lamp of electronic vehicle automatic control | |
| CN202512391U (en) | Inductive switch controlling device | |
| CN205921788U (en) | Current control circuit and adopt this control circuit's current control ware | |
| CN202309899U (en) | Infrared night viewing switch control circuit used for monitoring camera | |
| CN204855748U (en) | Treatment circuit is patrolled and examined to battery based on many channel switching of ARM platform | |
| CN203399078U (en) | Light-operated switch manufactured through voltage comparator | |
| CN107333358A (en) | induction type bulb | |
| CN203251282U (en) | Infrared sensor module | |
| CN104214656B (en) | A kind of warning light circuit and alarming device | |
| CN206892614U (en) | A kind of control circuit based on intelligent vending machine | |
| CN204423020U (en) | A kind of AR interaction display window | |
| CN102480817A (en) | Light switch device controlled by telephone | |
| CN112004297A (en) | Intelligent lamp pole of automatic control switch after loss of connection | |
| CN2874926Y (en) | Electronic switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20181031 |