CN201983856U - Photosensitive alarming device - Google Patents
Photosensitive alarming device Download PDFInfo
- Publication number
- CN201983856U CN201983856U CN201120030261XU CN201120030261U CN201983856U CN 201983856 U CN201983856 U CN 201983856U CN 201120030261X U CN201120030261X U CN 201120030261XU CN 201120030261 U CN201120030261 U CN 201120030261U CN 201983856 U CN201983856 U CN 201983856U
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- alarm
- photosensitive
- alarm threshold
- light sensor
- warning device
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Abstract
The utility model relates to a photo sensor alarming device, and discloses a photosensitive alarming device aiming to the problems of the prior art that the alarm threshold cannot be adjusted and the possibility of missing alarm is high; and through adopting the device, a user can adjust the alarm threshold as per the specific application condition. The device adopts the technical scheme that the photosensitive alarming device comprises a photosensitive sensor, a drive circuit and an alarm, wherein the photosensitive sensor is connected with the drive circuit; and the drive circuit is connected with the alarm. When the illumination intensity reaches or exceeds an alarm threshold, the alarm gives an alarm; and the photosensitive sensor is connected with an alarm threshold adjusting circuit for adjusting the alarm threshold. The device has the benefits that the alarm threshold of the photosensitive sensor is adjustable, so as to meet the requirement for alarm at different scenes; and in the further scheme, the plurality of photosensitive sensors are adopted, so that the alarm threshold of each photosensitive sensor is adjustable and controllable, the device can conveniently choose different detection orientations, and the alarming monitoring range is widened.
Description
Technical field
The utility model relates to a kind of optical sensor warning device, the photosensitive warning device that particularly a kind of optical sensor threshold value is adjustable.
Background technology
At present, the light sensor alarm technique has been widely used in daily life, as photosensitive stored value card etc.Existing photosensitive warning device generally comprises light sensor, driving circuit and alarm etc.Light sensor adopts photoresistance, photodiode or phototriode to carry out intensity of illumination usually and surveys.When the intensity of illumination on being radiated at light sensor surpassed the alarm threshold of circuit setting, the light sensor output alarm signal drove alarm equipment alarm by driving circuit.The alarm threshold of the photosensitive warning device setting of prior art is generally a fixed value, for environment with dark light, then may occur not reaching alarm threshold and failing to report because of being radiated at intensity of illumination on the light sensor.Aspect the warning investigative range, prior art lacks detection and the control to multi-faceted intensity of illumination.
The utility model content
Technical problem to be solved in the utility model is exactly non-adjustable at the prior art alarm threshold, is easy to generate the problem of failing to report, and a kind of photosensitive warning device is provided, and can regulate alarm threshold by the user according to concrete applied environment.
The utility model solve the technical problem, the technical scheme that adopts is, photosensitive warning device comprises light sensor, driving circuit and alarm, and described light sensor is connected with driving circuit, described driving circuit is connected with alarm, when intensity of illumination meets or exceeds alarm threshold, described alarm equipment alarm is characterized in that, described light sensor is connected with the alarm threshold regulating circuit, and described alarm threshold regulating circuit is used to regulate alarm threshold.
Concrete, described light sensor is photoresistance.
Perhaps, described light sensor is a photodiode.
Concrete, described alarm is made of one of hummer, Vib. and flasher, is perhaps constituted by it.
Further, described light sensor quantity 〉=2 are surveyed the intensity of illumination of different directions respectively.
Further, each light sensor all is connected with change-over switch, and described change-over switch is used to control the corresponding light dependent sensor.
The beneficial effects of the utility model are that the alarm threshold of light sensor is adjustable, satisfies the warning of different scenes.Further scheme adopts a plurality of light sensors, and each light sensor alarm threshold is adjustable controlled, is convenient to select different directional bearings, improves the alarm monitoring scope.
Description of drawings
Fig. 1 is the electrical block diagram of embodiment.
Embodiment
Below in conjunction with drawings and Examples, describe the technical solution of the utility model in detail.
Photosensitive warning device of the present utility model comprises light sensor, driving circuit and alarm.Light sensor of the present utility model is connected with the alarm threshold regulating circuit, can regulate the light sensor alarm threshold.The output of light sensor is connected to driving circuit, and when intensity of illumination met or exceeded the alarm threshold of setting, light sensor output trigger pip drove alarm equipment alarm by driving circuit.Owing to be provided with the alarm threshold regulating circuit, can regulate alarm threshold according to different intensity of illumination environment, avoid not having newspaper and failing to report.
Embodiment
This routine photosensitive warning device adopts 2 photoresistance as sensor, can survey the intensity of illumination of two different directions.Circuit structure is made of electric battery BA, power switch SW, change-over switch SW1, photoresistance RG1, adjustable resistance RV1, triode Q1, change-over switch SW2, photoresistance RG2, adjustable resistance RV2, triode Q2 and triode Q3 and hummer BU as shown in Figure 1.Wherein adjustable resistance RV1 and triode Q1 constitute the alarm threshold regulating circuit of this example first light sensor (photoresistance RG1), and adjustable resistance RV2 and triode Q2 constitute the alarm threshold regulating circuit of this example second light sensor (photoresistance RG2).Triode Q1, triode Q2 and triode Q3 also constitute this routine driving circuit simultaneously.Hummer BU then is this routine alarm among the figure.
This routine circuit working principles illustrated is as follows:
Photoresistance RG1 and adjustable resistance RV1 are as the base biasing resistor of triode 01, and triode Q1 base voltage is the partial pressure value of power supply on photoresistance RG1 and adjustable resistance RV1.Because the resistance of photoresistance RG1 changes with intensity of illumination, under the constant situation of supply voltage, the resistance of regulating adjustable resistance RV1 can make photoresistance RG1 make triode Q1 be in conducting state under certain intensity of illumination.Its emitter output high level of triode Q1 conducting, triode Q3 conducting, hummer BU reports to the police.So just realized the detection of a direction intensity of illumination with photosensitive resistance R G1.In like manner, realized the detection of another direction intensity of illumination with photosensitive resistance R G2.Triode Q1, Q2 among Fig. 1, Q3 are the NPN triode, and photoresistance RG1, RG2 are respectively the upper offset resistance of triode Q1, Q2 base stage, and adjustable resistance RV1, RV2 are its below-center offset resistance.When intensity of illumination reaches or when setting alarm threshold, because the photoresistance resistance diminishes, makes that the partial pressure value on the base stage raises, triode keeps conducting state, and hummer BU reports to the police; Otherwise it is big that the photoresistance resistance becomes, and the partial pressure value on the base stage is less than the triode forward voltage, and triode enters cut-off state, and hummer BU does not report to the police.Change-over switch SW1, SW2 can control respectively photoresistance RG1, RG2 among the figure, and when change-over switch SW1 or SW2 disconnection, photoresistance RG1 or RG2 do not have an effect to reporting to the police, and so just can select detection direction.
To the detection of a plurality of direction intensities of illumination, as long as follow the prescribed rules, increase the quantity of photoresistance and corresponding adjustable resistance and triode, and the transistor emitter that increases is connected to triode Q3 base stage gets final product.These are connected to all triodes of triode Q3 base stage, and its emitter effect equivalence is or door that as long as a triode conducting (it launches very high level) is arranged, triode Q3 can conducting produce warning.
In the foregoing description, circuit changes slightly, and light sensor just can adopt photodiode or phototriode etc., and is same, and alarm also can adopt Vib. and/or flasher etc.This routine photosensitive warning device, change-over switch also can be connected on collector or the emitter at triode Q1, Q2, can control respective sensor equally, and these circuit variation are too numerous to enumerate, and it all belongs to protection domain of the present utility model.
Claims (6)
1. photosensitive warning device, comprise light sensor, driving circuit and alarm, described light sensor is connected with driving circuit, described driving circuit is connected with alarm, when intensity of illumination meets or exceeds alarm threshold, described alarm equipment alarm is characterized in that, described light sensor is connected with the alarm threshold regulating circuit, and described alarm threshold regulating circuit is used to regulate alarm threshold.
2. photosensitive warning device according to claim 1 is characterized in that, described light sensor is photoresistance.
3. photosensitive warning device according to claim 1 is characterized in that, described light sensor is a photodiode.
4. photosensitive warning device according to claim 1 is characterized in that described alarm is made of one of hummer, Vib. and flasher, is perhaps constituted by it.
5. according to any described photosensitive warning device of claim 1～4, it is characterized in that described light sensor quantity 〉=2 are surveyed the intensity of illumination of different directions respectively.
6. photosensitive warning device according to claim 5 is characterized in that each light sensor all is connected with change-over switch, and described change-over switch is used to control the corresponding light dependent sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120030261XU CN201983856U (en) | 2011-01-28 | 2011-01-28 | Photosensitive alarming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120030261XU CN201983856U (en) | 2011-01-28 | 2011-01-28 | Photosensitive alarming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201983856U true CN201983856U (en) | 2011-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120030261XU Expired - Fee Related CN201983856U (en) | 2011-01-28 | 2011-01-28 | Photosensitive alarming device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201983856U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104207450A (en) * | 2014-07-16 | 2014-12-17 | 张家港三久箱包有限公司 | Novel bag |
| CN105676621A (en) * | 2016-03-26 | 2016-06-15 | 林捷达 | Intelligent watch with illumination detection |
| CN106441745A (en) * | 2016-10-25 | 2017-02-22 | 安徽理工大学 | LoRa-based valve water leakage detection positioning system |
| CN106448087A (en) * | 2016-10-13 | 2017-02-22 | 合肥拓发信息科技有限公司 | Electronic product with integration of illumination intensity prompting function |
| CN109035688A (en) * | 2018-08-06 | 2018-12-18 | 山东师范大学 | Oxygen concentration combined aural and visual alarm based on phosphorescence |
| CN113096334A (en) * | 2021-03-30 | 2021-07-09 | 国网河南省电力公司西峡县供电公司 | Underground cable anti-theft device |
-
2011
- 2011-01-28 CN CN201120030261XU patent/CN201983856U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104207450A (en) * | 2014-07-16 | 2014-12-17 | 张家港三久箱包有限公司 | Novel bag |
| CN105676621A (en) * | 2016-03-26 | 2016-06-15 | 林捷达 | Intelligent watch with illumination detection |
| CN106448087A (en) * | 2016-10-13 | 2017-02-22 | 合肥拓发信息科技有限公司 | Electronic product with integration of illumination intensity prompting function |
| CN106441745A (en) * | 2016-10-25 | 2017-02-22 | 安徽理工大学 | LoRa-based valve water leakage detection positioning system |
| CN109035688A (en) * | 2018-08-06 | 2018-12-18 | 山东师范大学 | Oxygen concentration combined aural and visual alarm based on phosphorescence |
| CN113096334A (en) * | 2021-03-30 | 2021-07-09 | 国网河南省电力公司西峡县供电公司 | Underground cable anti-theft device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20140128 |