CN104635276A - Infrared detection circuit for bank monitoring - Google Patents
Infrared detection circuit for bank monitoring Download PDFInfo
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- CN104635276A CN104635276A CN201310545560.0A CN201310545560A CN104635276A CN 104635276 A CN104635276 A CN 104635276A CN 201310545560 A CN201310545560 A CN 201310545560A CN 104635276 A CN104635276 A CN 104635276A
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Abstract
The invention discloses an infrared detection circuit for bank monitoring, which comprises a DC power supply, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eight resistors, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, an alarm signal lamp, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a first triode to a sixth triode, a first light emitting diode, a second light emitting diode, a first light sensitive transistor, a second light sensitive transistor and an adjustable unijunction transistor. Two light emitting diodes and two light sensitive transistors are adopted to monitor the surrounding environment; when a target or an object appears, the circuit sends a signal at once, a monitoring system carries out video monitoring on the appearing target or the object, and the circuit has the advantages that the structure is simple; elements are few; the cost is low; sensitivity is high; and popularization is facilitated.
Description
Technical field
The present invention relates to a kind of safety monitoring equipment, particularly relate to a kind of infrared circuit for bank monitoring.
Background technology
Along with the continuous sternness of social security situation, adopt the crime case of terrified extreme means robbery with violence bank to happen occasionally, continue traditional defendance mode and to be out of step with the times the paces of development, urgently we improve the precaution level and safety management.In modernization banking system process of construction, safety precaution theory there occurs fundamental change, and leading modernization high and new technology level of improving the precaution has become everybody common recognition and action, and infrared circuit is also used in bank monitoring system.But, much for bank monitoring infrared circuit complex structure, element is many, cost is high, sensitivity is low.
Summary of the invention
Object of the present invention is just to provide a kind of infrared circuit for bank monitoring to solve the problem.
The present invention is achieved through the following technical solutions above-mentioned purpose:
The present invention includes direct supply, first resistance, second resistance, 3rd resistance, 4th resistance, 5th resistance, 6th resistance, 7th resistance, 8th resistance, 9th resistance, tenth resistance, 11 resistance, 12 resistance, 13 resistance, 14 resistance, 15 resistance, 16 resistance, warning light, first electric capacity, second electric capacity, 3rd electric capacity, 4th electric capacity, 5th electric capacity, first triode, second triode, 3rd triode, 4th triode, 5th triode, 6th triode, first light emitting diode, second light emitting diode, first photistor, second photistor and adjustable unijunction transistor, the positive pole of described direct supply simultaneously with the emitter-base bandgap grading of described first triode, the first end of described second resistance, the first end of described 5th resistance is connected with the first end of described 6th resistance, the collector of described first triode connects the first end of described first resistance, second end of described first resistance connects the positive pole of described second light emitting diode, the base stage of described first triode connects the positive pole of described first light emitting diode, the negative pole of described first light emitting diode is connected with the first end of described 3rd resistance and the second end of described second resistance simultaneously, second end of described 3rd resistance is connected with the first end of described 4th resistance and the control pole of described adjustable unijunction transistor simultaneously, second end of described 5th resistance is connected with the first end of described second electric capacity and the positive pole of described adjustable unijunction transistor simultaneously, second end of described second electric capacity connects the first end of described 7th resistance, second end of described 6th resistance simultaneously with the first end of described first electric capacity, the emitter-base bandgap grading of described second triode, the first end of described 14 resistance, the first end of described 15 resistance, the first end of described warning light is connected with the emitter-base bandgap grading of described 4th triode, the base stage of described second triode connects the collector of described 3rd triode, the collector of described second triode is connected with the base stage of described 4th triode and the first end of described 9th resistance simultaneously, the emitter-base bandgap grading of described 3rd triode is connected with the first end of described 8th resistance and the collector of described first photistor simultaneously, the base stage of described 3rd triode is connected with the first end of described tenth resistance and the first end of described 3rd electric capacity simultaneously, with the collector of described 4th triode while of the second end of described tenth resistance, the first end of described 4th electric capacity is connected with the first end of described 11 resistance, second end of described 4th electric capacity is connected with the first end of described 12 resistance and the emitter-base bandgap grading of described second photistor simultaneously, the collector of described second photistor is connected with the first end of described 5th electric capacity and the first end of described 13 resistance simultaneously, second end of described 13 resistance is connected with the second end of described 14 resistance and the base stage of described 5th triode simultaneously, the collector of described 5th triode is connected with the second end of described 15 resistance and the base stage of described 6th triode simultaneously, the emitter-base bandgap grading of described 5th triode is connected with the emitter-base bandgap grading of described 6th triode and the first end of described 16 resistance simultaneously, the collector of described 6th triode connects the second end of described warning light, second end of described 16 resistance simultaneously with the negative pole of described second light emitting diode, second end of described 4th resistance, the negative pole of described adjustable unijunction transistor, second end of described 7th resistance, second end of described first electric capacity, the emitter-base bandgap grading of described first photistor, second end of described 8th resistance, second end of described 9th resistance, second end of described 3rd electric capacity, second end of described 11 resistance, second end of described 12 resistance and the second end ground connection of described 5th electric capacity.
Beneficial effect of the present invention is:
The present invention adopts two pairs of light emitting diodes and photistor to detect surrounding environment, when having target or object occurs, circuit sends signal at once, supervisory system is made to carry out video surveillance to the target occurred and object, and circuit structure is simple, element is few, cost is low, highly sensitive, be conducive to promote.
Accompanying drawing explanation
Fig. 1 is circuit structure schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1: the present invention includes direct supply V, first resistance R1, second resistance R2, 3rd resistance R3, 4th resistance R4, 5th resistance R5, 6th resistance R6, 7th resistance R7, 8th resistance R8, 9th resistance R9, tenth resistance R10, 11 resistance R11, 12 resistance R12, 13 resistance R13, 14 resistance R14, 15 resistance R15, 16 resistance R16, warning light L, first electric capacity C1, second electric capacity C2, 3rd electric capacity C3, 4th electric capacity C4, 5th electric capacity C5, first triode VT1, second triode VT2, 3rd triode VT3, 4th triode VT4, 5th triode VT5, 6th triode VT6, first LED 1, second LED 2, first photistor Q1, the positive pole of the second photistor Q2 and adjustable unijunction transistor D, direct supply V simultaneously with the emitter-base bandgap grading of the first triode VT1, the first end of the second resistance R2, the first end of the 5th resistance R5 is connected with the first end of the 6th resistance R6, the collector of the first triode VT1 connects the first end of the first resistance R1, second end of the first resistance R1 connects the positive pole of the second LED 2, the base stage of the first triode VT1 connects the positive pole of the first LED 1, the negative pole of the first LED 1 is connected with the first end of the 3rd resistance R3 and second end of the second resistance R2 simultaneously, second end of the 3rd resistance R3 is connected with the first end of the 4th resistance R4 and the control pole of adjustable unijunction transistor D simultaneously, second end of the 5th resistance R5 is connected with the first end of the second electric capacity C2 and the positive pole of adjustable unijunction transistor D simultaneously, second end of the second electric capacity C2 connects the first end of the 7th resistance R7, second end of the 6th resistance R6 simultaneously with the first end of the first electric capacity C1, the emitter-base bandgap grading of the second triode VT2, the first end of the 14 resistance R14, the first end of the 15 resistance R15, the first end of warning light L is connected with the emitter-base bandgap grading of the 4th triode VT4, the base stage of the second triode VT2 connects the collector of the 3rd triode VT3, the collector of the second triode VT2 is connected with the base stage of the 4th triode VT4 and the first end of the 9th resistance R9 simultaneously, the emitter-base bandgap grading of the 3rd triode VT3 is connected with the first end of the 8th resistance R8 and the collector of the first photistor Q1 simultaneously, the base stage of the 3rd triode VT3 is connected with the first end of the tenth resistance R10 and the first end of the 3rd electric capacity C3 simultaneously, with the collector of the 4th triode VT4 while of second end of the tenth resistance R10, the first end of the 4th electric capacity C4 is connected with the first end of the 11 resistance R11, second end of the 4th electric capacity C4 is connected with the first end of the 12 resistance R12 and the emitter-base bandgap grading of the second photistor Q2 simultaneously, the collector of the second photistor Q2 is connected with the first end of the 5th electric capacity C5 and the first end of the 13 resistance R13 simultaneously, second end of the 13 resistance R13 is connected with second end of the 14 resistance R14 and the base stage of the 5th triode VT5 simultaneously, the collector of the 5th triode VT5 is connected with second end of the 15 resistance R15 and the base stage of the 6th triode VT6 simultaneously, the emitter-base bandgap grading of the 5th triode VT5 is connected with the emitter-base bandgap grading of the 6th triode VT6 and the first end of the 16 resistance R16 simultaneously, the collector of the 6th triode VT6 connects second end of warning light L, second end of the 16 resistance R16 simultaneously with the negative pole of the second LED 2, second end of the 4th resistance R4, the negative pole of adjustable unijunction transistor D, second end of the 7th resistance R7, second end of the first electric capacity C1, the emitter-base bandgap grading of the first photistor Q1, second end of the 8th resistance R8, second end of the 9th resistance R9, second end of the 3rd electric capacity C3, second end of the 11 resistance R11, second end of the 12 resistance R12 and the second end ground connection of the 5th electric capacity C5.
As shown in Figure 1: circuit can at the longer signal being detected target apart from interior transmission.The corresponding first photistor Q1 of second LED 2, the corresponding second photistor Q2 of the first LED 1.When having object or the illumination of target barrier first LED 1 is mapped to photistor, first photistor Q1 becomes cut-off from conducting, then power amplification is passed to load (warning device) by the second LED 2 and the second photistor Q2.Second LED 2 and the second photistor Q2 play fail-safe effect in circuit.
Claims (1)
1. for an infrared circuit for bank monitoring, it is characterized in that: comprise direct supply, first resistance, second resistance, 3rd resistance, 4th resistance, 5th resistance, 6th resistance, 7th resistance, 8th resistance, 9th resistance, tenth resistance, 11 resistance, 12 resistance, 13 resistance, 14 resistance, 15 resistance, 16 resistance, warning light, first electric capacity, second electric capacity, 3rd electric capacity, 4th electric capacity, 5th electric capacity, first triode, second triode, 3rd triode, 4th triode, 5th triode, 6th triode, first light emitting diode, second light emitting diode, first photistor, second photistor and adjustable unijunction transistor, the positive pole of described direct supply simultaneously with the emitter-base bandgap grading of described first triode, the first end of described second resistance, the first end of described 5th resistance is connected with the first end of described 6th resistance, the collector of described first triode connects the first end of described first resistance, second end of described first resistance connects the positive pole of described second light emitting diode, the base stage of described first triode connects the positive pole of described first light emitting diode, the negative pole of described first light emitting diode is connected with the first end of described 3rd resistance and the second end of described second resistance simultaneously, second end of described 3rd resistance is connected with the first end of described 4th resistance and the control pole of described adjustable unijunction transistor simultaneously, second end of described 5th resistance is connected with the first end of described second electric capacity and the positive pole of described adjustable unijunction transistor simultaneously, second end of described second electric capacity connects the first end of described 7th resistance, second end of described 6th resistance simultaneously with the first end of described first electric capacity, the emitter-base bandgap grading of described second triode, the first end of described 14 resistance, the first end of described 15 resistance, the first end of described warning light is connected with the emitter-base bandgap grading of described 4th triode, the base stage of described second triode connects the collector of described 3rd triode, the collector of described second triode is connected with the base stage of described 4th triode and the first end of described 9th resistance simultaneously, the emitter-base bandgap grading of described 3rd triode is connected with the first end of described 8th resistance and the collector of described first photistor simultaneously, the base stage of described 3rd triode is connected with the first end of described tenth resistance and the first end of described 3rd electric capacity simultaneously, with the collector of described 4th triode while of the second end of described tenth resistance, the first end of described 4th electric capacity is connected with the first end of described 11 resistance, second end of described 4th electric capacity is connected with the first end of described 12 resistance and the emitter-base bandgap grading of described second photistor simultaneously, the collector of described second photistor is connected with the first end of described 5th electric capacity and the first end of described 13 resistance simultaneously, second end of described 13 resistance is connected with the second end of described 14 resistance and the base stage of described 5th triode simultaneously, the collector of described 5th triode is connected with the second end of described 15 resistance and the base stage of described 6th triode simultaneously, the emitter-base bandgap grading of described 5th triode is connected with the emitter-base bandgap grading of described 6th triode and the first end of described 16 resistance simultaneously, the collector of described 6th triode connects the second end of described warning light, second end of described 16 resistance simultaneously with the negative pole of described second light emitting diode, second end of described 4th resistance, the negative pole of described adjustable unijunction transistor, second end of described 7th resistance, second end of described first electric capacity, the emitter-base bandgap grading of described first photistor, second end of described 8th resistance, second end of described 9th resistance, second end of described 3rd electric capacity, second end of described 11 resistance, second end of described 12 resistance and the second end ground connection of described 5th electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310545560.0A CN104635276A (en) | 2013-11-06 | 2013-11-06 | Infrared detection circuit for bank monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310545560.0A CN104635276A (en) | 2013-11-06 | 2013-11-06 | Infrared detection circuit for bank monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104635276A true CN104635276A (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310545560.0A Pending CN104635276A (en) | 2013-11-06 | 2013-11-06 | Infrared detection circuit for bank monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104635276A (en) |
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2013
- 2013-11-06 CN CN201310545560.0A patent/CN104635276A/en active Pending
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Application publication date: 20150520 |
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| WD01 | Invention patent application deemed withdrawn after publication |