CN101566675A - Method and device for monitoring working condition of flash lamp - Google Patents
Method and device for monitoring working condition of flash lamp Download PDFInfo
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- CN101566675A CN101566675A CNA2009100991431A CN200910099143A CN101566675A CN 101566675 A CN101566675 A CN 101566675A CN A2009100991431 A CNA2009100991431 A CN A2009100991431A CN 200910099143 A CN200910099143 A CN 200910099143A CN 101566675 A CN101566675 A CN 101566675A
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- flash
- flash lamp
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000012544 monitoring process Methods 0.000 title claims abstract description 14
- 238000001914 filtration Methods 0.000 claims description 14
- 238000012806 monitoring device Methods 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The invention discloses a method and a device for monitoring the working condition of a flash lamp in road traffic electronic equipment, wherein the method comprises the following steps: a section of conducting wire in a power supply loop of the flash lamp penetrates through a current mutual inductance coil, an electric signal induced by the current mutual inductance coil is analyzed, the working state of the flash lamp is measured, and the times of flash actions are recorded. The device is as follows: the high-voltage power supply comprises an inductance coil L, a rectifying circuit DL, a filter circuit C1, an operational amplifier IC1 and a single chip microcomputer IC2 which are electrically connected in sequence, wherein a positive-end bias voltage divider resistor R1, a positive-end bias voltage divider resistor R2 and a pull-up resistor R3 are further arranged on the amplifying circuit IC 1. By adopting the scheme, managers of the road traffic electronic equipment can immediately master the working condition of the flash lamp so as to determine the working state of the flash lamp, so that the failed flash lamp can be maintained in time, and the completeness of electronic information is ensured.
Description
Technical field
The present invention relates to the monitoring method and the device thereof of the flash light working condition in a kind of road traffic electronic equipment, belong to electronic technology field.
Background technology
Along with the fast development of highway communication, to the also raising day by day of requirement of traffic administration.The traffic electronic monitoring is widely used, and photograph, video etc. have become the important means that break in traffic rules and regulations, traffic hazard and the criminal information relevant with traffic write down, and flashlamp plays an important role at photograph, the video of traffic e-management.But in present traffic electric subset,, flash of light is waited the general working condition of obtaining or analyze flashlamp by the scene in to the picture of taking a picture, record, image of whether working not to the direct device for monitoring of flash light working condition.Therefore there is the hysteresis that flash light working condition is understood, the managerial personnel that are the road traffic electronic equipment can not grasp flash light working condition immediately, the flashlamp that also just can't on-call maintenance breaks down, cause the imperfect of traffic electronic information at last, influence is carried out with the work of traffic electronic correlation.
Summary of the invention
At the problems referred to above, the problem that quasi-solution of the present invention is determined provides the monitoring method and the device thereof of the flash light working condition in a kind of road traffic electronic equipment.
For achieving the above object, the present invention is by the following technical solutions: a kind of monitoring method of flash light working condition, it is by passing an electric current mutual inductor to the section lead in the current supply circuit of flashlamp, the electric signal that the electric current mutual inductor induces is analyzed, measure the state of flashlamp work, and the number of times of record flash of light action.
The electric signal that described electric current mutual inductor induces through rectification, filtering and change in voltage relatively.By single-chip microcomputer according to described through rectification, filtering and the operational amplifier electric signal potential change situation after relatively, and according to the variation characteristic in flashlamp loop, discriminatory analysis goes out the duty in flashlamp loop, writes down the guide number of the normal flash of light of flashlamp when just doing simultaneously.
The monitoring device that monitoring method adopted of above-mentioned flash light working condition, it comprises a telefault L, rectification circuit DL, filtering circuit C1, operational amplifier IC1 and single-chip microcomputer IC2, described telefault L, rectification circuit DL, filtering circuit C1, operational amplifier IC1 and single-chip microcomputer IC2 are electrically connected successively, also are provided with anode bias voltage divider resistance R1, R2 and pull-up resistor R3 on the described amplifying circuit IC1.
Described rectification circuit DL is a bridge rectifier circuit.
Adopt technique scheme, because flashlamp is triggered when glistening, the electric current of its current supply circuit has pulsed to be changed, section lead in the current supply circuit is passed the electric current mutual inductor (to be formed around multi-turn by conductor loop, the center is empty), by voltage, electric current (when constituting the loop) variation characteristic analysis with circuit-under-test to the output of electric current mutual inductor lead two ends, and voltage, electric current variation characteristic during with non-flash of light work compare, to determine the duty of flashlamp, can write down the flash of light work number of times of flashlamp simultaneously.
Concrete variation characteristic analysis is: with the electric current in the electric current mutual inductor through behind the rectifying and wave-filtering of pass a bridge heap DL and capacitor C 1, send into the amplifier negative input end, amplifier compares by the bias voltage to negative input end and positive input terminal R1, R2 composition, with the OUT output terminal output of result from operational amplifier IC1, and send into the detection pin P3.5 of unit, by the potential change situation of single-chip microcomputer according to P3.5, and according to the variation characteristic in flashlamp loop, discriminatory analysis goes out the duty in flashlamp loop, writes down the guide number of the normal flash of light of flashlamp when just doing simultaneously.To sum up analyze, the present invention makes the managerial personnel of road traffic electronic equipment can grasp flash light working condition immediately to determine the duty of flashlamp, so that the flashlamp that on-call maintenance breaks down guarantees the complete of the sub-information of energising.Can write down simultaneously the flash of light work number of times of flashlamp.
Description of drawings
Fig. 1 is the circuit diagram of the monitoring device of flash light working condition of the present invention.
Among the figure: line is one section solid conductor in the flash lamp circuit loop, L is the electric current mutual inductor, DL is bridge rectifier bridge heap, C1 is a filter capacitor, R1, R2 are operational amplifier IC1 anode bias voltage divider resistance, IC1 is an operational amplifier, and R3 is the pull-up resistor of operational amplifier IC1, and IC2 is a single-chip microcomputer.
Embodiment
The monitoring method of flash light working condition of the present invention, it is by passing an electric current mutual inductor to the section lead in the current supply circuit of flashlamp, the electric signal that the electric current mutual inductor induces is analyzed, measured the state of flashlamp work, and the number of times of record flash of light action.The electric signal that described electric current mutual inductor induces through rectification, filtering and operational amplifier relatively.By single-chip microcomputer according to described through rectification, filtering and the operational amplifier electric signal potential change situation after relatively, and according to the variation characteristic in flashlamp loop, discriminatory analysis goes out the duty in flashlamp loop, writes down the guide number of the normal flash of light of flashlamp when just doing simultaneously.
Monitoring method in conjunction with above-mentioned flash light working condition, structure to its monitoring device is described below, referring to Fig. 1, the monitoring device of flash light working condition of the present invention, comprise a telefault L, rectification circuit DL, filtering circuit C1, operational amplifier IC1 and single-chip microcomputer IC2, described telefault L, rectification circuit DL, filtering circuit C1, operational amplifier IC1 and single-chip microcomputer IC2 are electrically connected successively; Also be provided with anode bias voltage divider resistance R1, R2 and pull-up resistor R3 on the described operational amplifier IC1.Described rectification circuit DL is a bridge rectifier circuit.Principle of work: one section solid conductor in the flashlamp loop passes electric current mutual inductor L, the variation of flash lamp circuit current in loop can cause the electric current of electric current mutual inductor, voltage is corresponding to change, with the electric current in the electric current mutual inductor through behind the rectifying and wave-filtering of pass a bridge heap DL and capacitor C 1, send into the operational amplifier negative input end, operational amplifier passes through negative input end and positive input terminal R1, the bias voltage that R2 forms relatively, the result is exported from operational amplifier OUT output terminal, and send into the detection pin P3.5 of unit, by the potential change situation of single-chip microcomputer according to P3.5, and according to the variation characteristic in flashlamp loop, discriminatory analysis goes out the duty in flashlamp loop, writes down the guide number of the normal flash of light of flashlamp when just doing simultaneously.
Claims (5)
1, a kind of flash light working condition monitoring method, it is characterized in that it is by passing an electric current mutual inductor to the section lead in the current supply circuit of flashlamp, the electric signal that the electric current mutual inductor induces is analyzed, measured the state of flashlamp work, and the number of times of record flash of light action.
2, flash light working condition monitoring method according to claim 1, it is characterized in that electric signal that described electric current mutual inductor induces through rectification, filtering and and change in voltage relatively.
3, flash light working condition monitoring method according to claim 2, it is characterized in that by single-chip microcomputer according to described through rectification, filtering current potential situation of change, and according to the variation characteristic in flashlamp loop, discriminatory analysis goes out the duty in flashlamp loop, writes down the guide number of the normal flash of light of flashlamp when just doing simultaneously.
4, according to the described road of claim 1 flash light working condition monitoring device, it is characterized in that it comprises a telefault L, rectification circuit DL, filtering circuit C1, amplifying circuit IC1 and single-chip microcomputer IC2, described telefault L, rectification circuit DL, filtering circuit C1, amplifying circuit IC1 and single-chip microcomputer IC2 are electrically connected successively; Also be provided with anode bias voltage divider resistance R1, R2 and pull-up resistor R3 on the described operational amplifier IC1.
5, flash light working condition monitoring device according to claim 4 is characterized in that described rectification circuit DL is a bridge rectifier circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100991431A CN101566675A (en) | 2009-05-25 | 2009-05-25 | Method and device for monitoring working condition of flash lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100991431A CN101566675A (en) | 2009-05-25 | 2009-05-25 | Method and device for monitoring working condition of flash lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101566675A true CN101566675A (en) | 2009-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100991431A Pending CN101566675A (en) | 2009-05-25 | 2009-05-25 | Method and device for monitoring working condition of flash lamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN101566675A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050144A (en) * | 2012-12-30 | 2013-04-17 | 深圳市凌启电子有限公司 | Power supply transmission circuit of memory card |
| WO2018040789A1 (en) * | 2016-08-30 | 2018-03-08 | 中兴通讯股份有限公司 | Power supply protection circuit, method and device |
| CN111027334A (en) * | 2019-11-13 | 2020-04-17 | 无锡盈达聚力科技有限公司 | Scanning device and detection method for light supplement state of light supplement lamp of scanning device |
-
2009
- 2009-05-25 CN CNA2009100991431A patent/CN101566675A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050144A (en) * | 2012-12-30 | 2013-04-17 | 深圳市凌启电子有限公司 | Power supply transmission circuit of memory card |
| WO2018040789A1 (en) * | 2016-08-30 | 2018-03-08 | 中兴通讯股份有限公司 | Power supply protection circuit, method and device |
| CN111027334A (en) * | 2019-11-13 | 2020-04-17 | 无锡盈达聚力科技有限公司 | Scanning device and detection method for light supplement state of light supplement lamp of scanning device |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20091028 |