CN107864539B - Sense light and sensing device - Google Patents
Sense light and sensing device Download PDFInfo
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- CN107864539B CN107864539B CN201710946687.1A CN201710946687A CN107864539B CN 107864539 B CN107864539 B CN 107864539B CN 201710946687 A CN201710946687 A CN 201710946687A CN 107864539 B CN107864539 B CN 107864539B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/16—Controlling the light source by timing means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The present invention relates to a kind of sense light and sensing device, sense light includes lighting source, sensing device and driving circuit, and sensing device includes photosensitive sensor and controller；Photosensitive sensor obtains electrical signal of reaction for incuding external environment brightness in real time, and controller shines for exporting first control signal, control driving circuit driving lighting source cyclical intermission when the signal strength of electrical signal of reaction reaches the first preset threshold；Controller is also used to export second control signal when the signal strength of electrical signal of reaction continuously reaches the second preset threshold within a preset period of time, and control driving circuit closes lighting source or adjusts the luminous period size of lighting source cyclical intermission；Wherein, preset time period includes at least a part in the section of luminous intermittent time in a light period of the lighting source.Using the present invention, the brightness of accurate judgement natural environment and can turn off the light according to natural environment brightness and control or carry out light period adjustment.
Description
Technical field
The present invention relates to lighting control technique fields, more particularly to a kind of sense light and sensing device.
Background technique
Photosensitive sensor is the sensor that electric signal is converted optical signals to using light-sensitive element, it can incude the bright of light
Dark variation, exports faint electric signal, and electric signal after treatment, can be used for controlling electronic product automatic opening, therefore light
Dependent sensor is widely used in automation field.
Light-operated sense light is that photosensitive sensor applies the product relatively conventional in Lighting control field, and light-operated sense light can be
Control lamp is lighted when the brightness that photosensitive sensor is detected is less than its threshold value.However, after lamp is lighted, photosensitive sensor institute
The brightness detected increases, and more than the threshold value of light-operated sense light, causes light-operated sense light to be unable to judge accurately natural environment bright
Degree cannot control lamp according to natural environment brightness and close.
Summary of the invention
Based on this, it is necessary to which provide a kind of the brightness of accurate judgement natural environment and can turn off the light according to natural environment brightness
The sense light and sensing device of control.
A kind of sense light, including lighting source, sensing device and driving circuit, the sensing device include photosensitive sensor
Electrical signal of reaction is obtained for incuding external environment brightness in real time with photosensitive sensor described in controller, the controller is used for
The signal strength of the electrical signal of reaction exports first control signal when reaching the first preset threshold, the first control signal is used
The lighting source cyclical intermission is driven to shine in controlling the driving circuit；The controller is also used in the induced electricity
The signal strength of signal exports second control signal, second control when continuously reaching the second preset threshold within a preset period of time
For controlling, the driving circuit closes the lighting source to signal processed or the adjustment lighting source cyclical intermission shines
Period size；Wherein, the preset time period includes at least the luminous interval in a light period of the lighting source
A part in period.
Second preset threshold is less than or equal to first preset threshold in one of the embodiments,；The control
Device processed is also used to export described first when the signal strength of the electrical signal of reaction is greater than or equal to first preset threshold
Signal is controlled, and, continuously it is less than or equal to described second within a preset period of time in the signal strength of the electrical signal of reaction
The second control signal is exported when preset threshold.
Second preset threshold is greater than or equal to first preset threshold in one of the embodiments,；The control
Device processed is also used to export described first when the signal strength of the electrical signal of reaction is less than or equal to first preset threshold
Signal is controlled, and, continuously it is greater than or equal to described second within a preset period of time in the signal strength of the electrical signal of reaction
The second control signal is exported when preset threshold.
The first control signal drives the illumination light for controlling the driving circuit in one of the embodiments,
Source is shone with the frequency cycle sexual refractoriness of at least 50Hz.
The photosensitive sensor is photodiode sensor in one of the embodiments,.
In one of the embodiments, after the signal strength of the electrical signal of reaction reaches the first preset threshold and
Before reaching the second preset threshold, the controller is also used to export third control according to the signal strength of the electrical signal of reaction
Signal, the third control signal is for controlling the driving circuit to adjust in each light period of the lighting source
Shine duration.
A kind of sensing device, including photosensitive sensor and controller, the photosensitive sensor for incuding external rings in real time
Border brightness obtains electrical signal of reaction, and the controller is used to reach the first preset threshold in the signal strength of the electrical signal of reaction
When export first control signal, the first control signal is for controlling the driving circuit connecting with the controller to drive photograph
Mingguang City source cyclical intermission shines；The controller be also used to the electrical signal of reaction signal strength within a preset period of time
Second control signal is exported when continuously reaching the second preset threshold, the second control signal is closed for controlling the driving circuit
Close the period size that the lighting source or the adjustment lighting source cyclical intermission shine；Wherein, the preset time
Section includes at least a part in the section of luminous intermittent time in a light period of the lighting source.
Second preset threshold is less than or equal to first preset threshold in one of the embodiments,；The control
Device processed is also used to export described first when the signal strength of the electrical signal of reaction is greater than or equal to first preset threshold
Signal is controlled, and, continuously it is less than or equal to described second within a preset period of time in the signal strength of the electrical signal of reaction
The second control signal is exported when preset threshold.
Second preset threshold is greater than or equal to first preset threshold in one of the embodiments,；The control
Device processed is also used to export described first when the signal strength of the electrical signal of reaction is less than or equal to first preset threshold
Signal is controlled, and, continuously it is greater than or equal to described second within a preset period of time in the signal strength of the electrical signal of reaction
The second control signal is exported when preset threshold.
The first control signal drives the illumination light for controlling the driving circuit in one of the embodiments,
Source is shone with the frequency cycle sexual refractoriness of at least 50Hz.
The photosensitive sensor is photodiode sensor in one of the embodiments,.
In one of the embodiments, after the signal strength of the electrical signal of reaction reaches the first preset threshold and
Before reaching the second preset threshold, the controller is also used to export third control according to the signal strength of the electrical signal of reaction
Signal, the third control signal is for controlling the driving circuit to adjust in each light period of the lighting source
Shine duration.
In the embodiment of the present invention, is shone by control lighting source interval, enable photosensitive sensor in lighting source
The luminous intermittent time section when accurately detect natural environment brightness, when electrical signal of reaction signal strength within a preset period of time
When continuously reaching the second preset threshold, it may be determined that natural environment brightness has reached the threshold value turned off the light, certainly so as to accurate judgement
Right ambient brightness simultaneously carries out accurately turn off the light control or progress light period adjustment according to natural environment brightness automatically.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The attached drawing of other embodiments is obtained according to these attached drawings.
Fig. 1 is the functional module structure schematic diagram of the sense light of one embodiment of the invention；
Fig. 2 is the relation schematic diagram between the electrical signal of reaction intensity and natural environment brightness of one embodiment of the invention；
Fig. 3 is the functional module structure schematic diagram of the sensing device of one embodiment of the invention.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give better embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more the disclosure
Add thorough and comprehensive.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
As shown in Figure 1, its functional module structure schematic diagram for the sense light 10 of one embodiment of the invention.Sense light 10 is wrapped
Lighting source 110, sensing device 120 and driving circuit 130 are included, wherein sensing device 120 includes photosensitive sensor 121 and control
Device 122.
Photosensitive sensor 121 obtains electrical signal of reaction for incuding external environment brightness in real time.
Optionally, photosensitive sensor 121 is photodiode sensor or photosensitive resistance sensor.Preferably, photosensitive biography
Sensor 121 uses photodiode sensor, for opposite photosensitive resistance sensor, photodiode sensor response speed compared with
Fastly, the variation that can timely respond to external environment brightness changes the signal strength of the electrical signal of reaction of output.
Wherein, according to the different sampled points of the different circuit designs and/or electrical signal of reaction of photosensitive sensor, induction
The signal strength of electric signal can be increased or reduced with the raising of external environment brightness.
Controller 122 is used for the first control of output letter when the signal strength of electrical signal of reaction reaches the first preset threshold
Number, first control signal drives 110 cyclical intermission of lighting source to shine for controlling driving circuit 130.Controller 122 is also used
In exporting second control signal when the signal strength of electrical signal of reaction continuously reaches the second preset threshold within a preset period of time,
Second control signal is used to control driving circuit and closes lighting source or adjust the lighting source cyclical intermission luminous period
Size.
In the present embodiment, reaching the first preset threshold indicates to be greater than or equal to the first preset threshold, within a preset period of time
The second preset threshold is continuously reached, indicates continuously to be less than or equal to the second preset threshold within a preset period of time.Alternatively, reaching
One preset threshold represents less than or is equal to the first preset threshold, continuously reaches the second preset threshold within a preset period of time, indicates
Continuously it is greater than or equal to the second preset threshold within a preset period of time.
It wherein, include fluorescent lifetime section and section of luminous intermittent time in a light period of lighting source, shine interval
Period refers to lighting source non-luminous period.Preset time period includes at least a luminous week of the lighting source
A part in interim section of luminous intermittent time, in this way, other than the fluorescent lifetime section of lighting source 110, at other
Between the signal strength of electrical signal of reaction when still can reach the second preset threshold, can confirm that natural environment brightness has reached and be enough to turn off the light
Brightness.For example, preset time period is a light period.For another example, preset time period includes multiple light periods.For another example, it is
Determining natural environment brightness has reached the condition of turning off the light, and avoids judging by accident, when a length of 1s ~ 10min of preset time period.
In the embodiment of the present invention, is shone by control lighting source interval, enable photosensitive sensor in lighting source
The luminous intermittent time section when accurately detect natural environment brightness, when electrical signal of reaction signal strength within a preset period of time
When continuously reaching the second preset threshold, it may be determined that natural environment brightness has reached the threshold value turned off the light, so as to according to natural ring
Border brightness carries out accurately turn off the light control or progress light period adjustment automatically.
In one embodiment, when the signal strength of electrical signal of reaction reduces with the raising of external environment brightness,
Second preset threshold is less than or equal to the first preset threshold, and controller 122 is used for big in the signal strength of electrical signal of reaction at this time
When the first preset threshold, first control signal is exported；And electrical signal of reaction signal strength in preset time
When being continuously less than or equal to the second preset threshold in section, second control signal is exported.
As shown in Fig. 2, curve S1 indicates the rule that natural environment brightness changes over time, wherein natural environment brightness refers to
It is the ambient brightness of nature, i.e. the external environment brightness when not turning on light.Curve S2 indicates the sense light of the present embodiment
The rule that changes over time of signal strength of electrical signal of reaction that exports of photosensitive sensor 121.Before time t 1, natural ring
Border brightness gradually decreases, and the signal strength of electrical signal of reaction is gradually increased therewith, and when the time is t1, the signal of electrical signal of reaction is strong
Degree reaches the first preset threshold Th1, and controller 122 exports first control signal, under the control of first control signal, driving electricity
Road 130 drives lighting source 110, and periodically interval shines.Wherein, a light period of lighting source 110 is denoted as T, and one
Luminous duration in light period is denoted as T1, then when interval in a light period a length of (T-T1).Wherein in lighting source
Fluorescent lifetime section in 110 each light period, external environment brightness increase, therefore the signal strength of electrical signal of reaction compared with
Small, the section of luminous intermittent time in each light period of lighting source 110, external environment brightness reduces, therefore induced electricity
The signal strength of signal is larger.It brightens again as natural environment brightness is gradually dimmed, the entirety of the signal strength of electrical signal of reaction
Variation tendency is to increase to reduce again.When time is t2, natural environment brightness is increased to certain value, the signal strength of electrical signal of reaction
The second preset threshold Th2 is dropped below/is equal to, when the signal strength of electrical signal of reaction is continuously less than/is equal to the second default threshold
When the duration of value Th2 reaches the duration T2 of preset time period, controller 122 exports second control signal, and driving circuit 130 is being controlled
Driving lighting source 110 stops shining under the control of device 122 processed, and the signal strength of electrical signal of reaction is with natural environment brightness
It smoothly increases and smoothly reduces.
In one embodiment, when the signal strength of electrical signal of reaction increases with the raising of external environment brightness,
Second preset threshold is greater than or equal to the first preset threshold, and controller 122 is used for small in the signal strength of electrical signal of reaction at this time
In or be equal to the first preset threshold when, export first control signal, and, electrical signal of reaction signal strength in preset time
When being continuously less than or equal to the second preset threshold in section, second control signal is exported.
If the signal strength of electrical signal of reaction increases with the raising of external environment brightness, open lighting source it
Before, the signal strength of electrical signal of reaction reduces with the reduction of natural environment brightness, when the signal strength of electrical signal of reaction subtracts
When being as low as less than or equal to the first preset threshold, controller 122 exports first control signal, in the control of first control signal
Under, driving circuit 130 drives lighting source 110, and periodically interval shines.In each light period of lighting source 110
Fluorescent lifetime section, external environment brightness increases, therefore the signal strength of electrical signal of reaction is larger, in each of lighting source 110
Section of luminous intermittent time in light period, external environment brightness reduces, therefore the signal strength of electrical signal of reaction is smaller.With
Natural environment brightness is gradually dimmed to brighten again, and the overall variation trend of the signal strength of electrical signal of reaction is to reduce to increase again.When
When natural environment brightness is increased to certain value, the signal strength of electrical signal of reaction increase with it be greater than/be equal to the second default threshold
Value, when the duration that the signal strength of electrical signal of reaction is continuously greater than/is equal to the second preset threshold reaches the duration of preset time period
When, controller 122 exports second control signal, and driving circuit 130 drives lighting source 110 to stop under the control of controller 122
Only shine.
In one embodiment, first control signal drives lighting source 110 at least for controlling driving circuit 130
The frequency cycle sexual refractoriness of 50Hz shines.That is, when controller 122 exports first control signal, in the control of first control signal
Under system, driving circuit 130 drives lighting source 110 is at least intermittent within each second to shine 50 times, in this way, human eye can be made to be not easy
Perceive the flashing of lighting source 110.
In one embodiment, it after the signal strength of the electrical signal of reaction reaches the first preset threshold, and reaches
To before the second preset threshold, controller 122 is also used to export third control letter according to the signal strength of the electrical signal of reaction
Number, third control signal is used to control the luminous duration in each light period of the adjusting lighting source 130 of driving circuit 130.
For example, if the signal strength of electrical signal of reaction reduces with the raising of external environment brightness, when the induction
When the signal of electric signal increases, third control signal extends each of lighting source 130 luminous week for controlling driving circuit 130
Interim luminous duration, when the overall variation trend of the signal strength of the electrical signal of reaction is to reduce, third controls signal
The luminous duration in each light period for shortening lighting source 130.
For another example, if the signal strength of electrical signal of reaction increases with the raising of external environment brightness, when the induction
The overall variation trend of the signal strength of electric signal is when increasing, and third control signal shines for controlling the shortening of driving circuit 130
Luminous duration in each light period in Mingguang City source 130, when the signal of the electrical signal of reaction reduces, third controls signal
The luminous duration in each light period for extending lighting source 130.
For another example, it is corresponding to be also used to preset multiple signal strength sections and each signal strength section for controller 122
Shine duration, after the signal strength of the electrical signal of reaction reaches the first preset threshold, and reaches the second preset threshold
Before, controller 122 exports third according to the signal strength section of electrical signal of reaction and controls signal, and third control signal is for controlling
Luminous duration in each light period of lighting source 130 is adjusted to the electrical signal of reaction intensity region by driving circuit 130 processed
Between corresponding luminous duration.
Since the luminous duration in different light periods may be different, it is preferable that preset time period in the present embodiment
Duration is greater than a light period.For example, the duration of preset time period is equal to the multiple or preset time of a light period
Section when a length of several seconds or several minutes.
In the present embodiment, illumination light is adjusted by the luminous duration in each light period of adjusting lighting source 130
The Integral luminous brightness in source 130, in such manner, it is possible to adjust the Integral luminous of lighting source 130 according to the variation of natural environment brightness
Brightness keeps external environment brightness more stable.
The present invention also provides a kind of sensing devices 120, as shown in Figure 3 comprising photosensitive sensor 121 and controller
122, photosensitive sensor 121 obtains electrical signal of reaction for incuding external environment brightness in real time, and controller 122 is used in induced electricity
The signal strength of signal exports first control signal when reaching the first preset threshold, first control signal is for control and controller
The driving circuit of connection is to drive lighting source cyclical intermission to shine；Controller 122 is also used to the signal in electrical signal of reaction
Intensity exports second control signal when continuously reaching the second preset threshold within a preset period of time, second control signal is for controlling
Driving circuit closes lighting source or adjusts the luminous period size of lighting source cyclical intermission；Wherein, preset time period
Including at least a part in the section of luminous intermittent time in a light period of the lighting source.
In one embodiment, the second preset threshold is less than or equal to the first preset threshold；The controller 122 is also used to
The first control signal is exported when the signal strength of the electrical signal of reaction is greater than or equal to first preset threshold, with
And it is defeated when the signal strength of the electrical signal of reaction is continuously less than or equal to second preset threshold within a preset period of time
The second control signal out.
In one embodiment, the second preset threshold is greater than or equal to the first preset threshold；Controller 122 is also used in institute
The first control signal is exported when stating the signal strength of electrical signal of reaction less than or equal to first preset threshold, and,
It is exported when the signal strength of the electrical signal of reaction is continuously greater than or equal to second preset threshold within a preset period of time
The second control signal.
In one embodiment, the first control signal for control the driving circuit drive the lighting source with
The frequency cycle sexual refractoriness of at least 50Hz shines.
In one embodiment, photosensitive sensor is photodiode sensor.
In one embodiment, it after the signal strength of the electrical signal of reaction reaches the first preset threshold, and reaches
To before the second preset threshold, controller 122 is also used to export third control letter according to the signal strength of the electrical signal of reaction
Number, third control signal is used to control the luminous duration in each light period of driving circuit adjusting lighting source.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of sense light, including lighting source, sensing device and driving circuit, the sensing device include photosensitive sensor and
Controller；
The photosensitive sensor obtains electrical signal of reaction for incuding external environment brightness in real time, which is characterized in that
The controller is used for the first control of output letter when the signal strength of the electrical signal of reaction reaches the first preset threshold
Number, the first control signal drives the lighting source cyclical intermission to shine for controlling the driving circuit；
The controller is also used to continuously reach second within a preset period of time in the signal strength of the electrical signal of reaction default
Export second control signal when threshold value, the second control signal for control the driving circuit close the lighting source or
Person adjusts the luminous period size of the lighting source cyclical intermission；
Wherein, the preset time period includes at least in the section of luminous intermittent time in a light period of the lighting source
A part；
After the signal strength of the electrical signal of reaction reaches the first preset threshold, and before reaching the second preset threshold,
The controller is also used to export third control signal according to the signal strength of the electrical signal of reaction, and the third controls signal
Luminous duration in each light period of the lighting source is adjusted for controlling the driving circuit.
2. sense light according to claim 1, which is characterized in that second preset threshold is less than or equal to described first
Preset threshold；
The controller is also used to defeated when the signal strength of the electrical signal of reaction is greater than or equal to first preset threshold
The first control signal out, and, continuously it is less than or waits within a preset period of time in the signal strength of the electrical signal of reaction
The second control signal is exported when second preset threshold.
3. sense light according to claim 1, which is characterized in that second preset threshold is greater than or equal to described first
Preset threshold；
The controller is also used to defeated when the signal strength of the electrical signal of reaction is less than or equal to first preset threshold
The first control signal out, and, continuously it is greater than or waits within a preset period of time in the signal strength of the electrical signal of reaction
The second control signal is exported when second preset threshold.
4. sense light according to any one of claim 1 to 3, which is characterized in that the first control signal is for controlling
Making the driving circuit drives the lighting source to shine with the frequency cycle sexual refractoriness of at least 50Hz.
5. sense light according to any one of claim 1 to 3, which is characterized in that the photosensitive sensor is photosensitive two
Pole pipe sensor.
6. a kind of sensing device, including photosensitive sensor and controller, the photosensitive sensor for incuding external environment in real time
Brightness obtains electrical signal of reaction, which is characterized in that
The controller is used for the first control of output letter when the signal strength of the electrical signal of reaction reaches the first preset threshold
Number, the first control signal is for controlling the driving circuit connecting with the controller to drive lighting source cyclical intermission
It shines；
The controller is also used to continuously reach second within a preset period of time in the signal strength of the electrical signal of reaction default
Export second control signal when threshold value, the second control signal for control the driving circuit close the lighting source or
Person adjusts the luminous period size of the lighting source cyclical intermission；
Wherein, the preset time period includes at least in the section of luminous intermittent time in a light period of the lighting source
A part；
After the signal strength of the electrical signal of reaction reaches the first preset threshold, and before reaching the second preset threshold,
The controller is also used to export third control signal according to the signal strength of the electrical signal of reaction, and the third controls signal
Luminous duration in each light period of the lighting source is adjusted for controlling the driving circuit.
7. sensing device according to claim 6, which is characterized in that second preset threshold is less than or equal to described the
One preset threshold；
The controller is also used to defeated when the signal strength of the electrical signal of reaction is greater than or equal to first preset threshold
The first control signal out, and, continuously it is less than or waits within a preset period of time in the signal strength of the electrical signal of reaction
The second control signal is exported when second preset threshold.
8. sensing device according to claim 6, which is characterized in that second preset threshold is greater than or equal to described the
One preset threshold；
The controller is also used to defeated when the signal strength of the electrical signal of reaction is less than or equal to first preset threshold
The first control signal out, and, continuously it is greater than or waits within a preset period of time in the signal strength of the electrical signal of reaction
The second control signal is exported when second preset threshold.
9. the sensing device according to any one of claim 6 to 8, which is characterized in that the first control signal is used for
Controlling the driving circuit drives the lighting source to shine with the frequency cycle sexual refractoriness of at least 50Hz.
10. the sensing device according to any one of claim 6 to 8, which is characterized in that the photosensitive sensor is photosensitive
Diode-transducer.
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| CN201710946687.1A CN107864539B (en) | 2017-10-12 | 2017-10-12 | Sense light and sensing device |
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| CN110418473A (en) * | 2018-04-27 | 2019-11-05 | 广州市番禺奥莱照明电器有限公司 | It is a kind of to prevent light-controlled lamp from the signal processing method to go out |
| CN108533988A (en) * | 2018-06-13 | 2018-09-14 | 广东电网有限责任公司 | A kind of prompt equipment |
| CN109673083B (en) * | 2018-12-27 | 2022-04-05 | 赛特威尔电子股份有限公司 | Night disturbance-free control method and circuit and smoke alarm |
| CN110671684A (en) * | 2019-10-10 | 2020-01-10 | 中山市威星电器有限公司 | Photosensitive induction lamp and control method thereof |
| CN113993191B (en) * | 2021-09-17 | 2024-01-23 | 珠海格力电器股份有限公司 | NB-IOT signal transmission control method, apparatus, storage medium and electronic device |
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