CN112074051A - Intelligent night lamp control circuit with temperature compensation function and control method - Google Patents

Intelligent night lamp control circuit with temperature compensation function and control method Download PDF

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Publication number
CN112074051A
CN112074051A CN202010867168.8A CN202010867168A CN112074051A CN 112074051 A CN112074051 A CN 112074051A CN 202010867168 A CN202010867168 A CN 202010867168A CN 112074051 A CN112074051 A CN 112074051A
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controller
voltage
signal
temperature compensation
temperature
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CN112074051B (en
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任泽铭
汪沁
雷仁大
张志华
汪海源
蒋辉
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Anhui Liangliang Electronic Technology Co ltd
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Anhui Liangliang Electronic Technology Co ltd
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10Controlling the light source
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20Responsive to malfunctions or to light source life; for protection
    • H05B47/28Circuit arrangements for protecting against abnormal temperature
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The invention provides an intelligent night lamp control circuit with temperature compensation, which comprises: the pyroelectric infrared sensor is connected to a first input end of a voltage comparator, the other input end of the voltage comparator is connected with the output end of a multiplier, the first input end of the multiplier is connected with the reference voltage generating circuit, the other input end of the multiplier is connected with the temperature compensation coefficient Kd, and the output end of the voltage comparator is connected with a controller; the output end of the microphone detection circuit is connected with the controller; the first output end of the controller is connected with the LED driving circuit, and a detection voltage signal Vd is fed back to the controller from the connection point of the LED driving circuit and the LED light-emitting unit; and determining a corresponding temperature compensation coefficient Kd according to the voltage signal Vd. The controller controls the LED light-emitting unit to work as required according to the microphone detection circuit and the voltage comparator, overcomes the influence caused by temperature fluctuation, and realizes accurate on-demand lighting.

Description

Intelligent night lamp control circuit with temperature compensation function and control method
Technical Field
The invention relates to the field of illumination control, in particular to an intelligent night lamp control circuit with temperature compensation and a control method.
Background
The development of LED technology has LED to its application to a wide variety of consumer electronic devices, including various types of household lighting fixtures. Wherein, supplementary lighting apparatus at night such as skirting lamp is used by a large amount in daily life, brings very big facility for user's interim activity at night. At present, household skirting lamps in the market are mainly embedded and are arranged at the corners of user paths such as bedrooms or living rooms. To improve the accuracy of nightlight control, sensors are introduced to enable user detection, such as by pyroelectric infrared sensors, microphones, etc., to detect the presence of an active user, which may be automatically turned on when the user is approaching at night and turned off when the user is away.
However, the conventional control methods have many disadvantages, such as the following:
1. although the lighting can be controlled to be turned on more accurately and pertinently through sound, the way of shouting or sounding when sleeping at night can influence the rest of family members; in addition, noises such as snores and the like can also interfere with the sound control trigger to cause false starting; when the pyroelectric infrared sensor is adopted for detection, a user can trigger a kick lamp to work after kicking or turning over unconsciously in a dream late at night; the false triggering of the kick lamp with high brightness easily influences the sleep of the user;
2. background temperatures of different rooms are different, for example, the temperature of a west room is generally higher than that of an east room, the temperature of a room with an air conditioner is lower than that of a room without the air conditioner, and the like, and the temperature has a great influence on a sensing result of the sensor because the pyroelectric infrared sensor has sensitivity to the temperature.
However, many existing night lights often do not have a temperature compensation function, and sensor parameters are fixed when leaving a factory, so that the temperature under different environments cannot be effectively monitored and compensated; when temperature compensation is needed, an additional temperature detection module is added, which increases the cost.
Therefore, how to control the night lamp more intelligently, more accurately, more efficiently and conveniently is a great problem which needs to be solved urgently at present.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the accurate, efficient and flexible intelligent night lamp control circuit with the temperature compensation function and the control method, which can be applied to various use scenes needing night illumination, overcome the influence caused by temperature fluctuation, realize accurate on-demand lamp lighting, and have the advantages of high control precision, low cost and the like.
In order to achieve the object of the present invention, the present invention provides an intelligent night light control circuit with temperature compensation, comprising: the control circuit comprises a pyroelectric infrared sensor, the pyroelectric infrared sensor outputs a pyroelectric infrared detection signal to a first input end of a voltage comparator, the other input end of the voltage comparator is connected with the output end of a multiplier, the first input end of the multiplier is connected with the reference voltage generating circuit, the other input end of the multiplier is connected with the temperature compensation coefficient Kd, and the output end of the voltage comparator is connected with a controller; the output end of the microphone detection circuit is connected with the controller and used for outputting a microphone detection signal to the controller so as to trigger the controller to perform corresponding control; the first output end of the controller is connected with the LED driving circuit, and the LED driving circuit and the LED light-emitting unit are sequentially connected between the positive electrode of the power supply and the power ground; the connection point of the LED driving circuit and the LED light-emitting unit feeds back a detection voltage signal Vd to the controller;
the corresponding control is specifically as follows: outputting a first control signal to the controller when the microphone detection circuit collects a sound signal higher than a predetermined value in a detection period; the controller controls the LED light-emitting unit to perform breathing flicker with first brightness within a first preset time period T0 after receiving a first control signal, and meanwhile, the controller receives a voltage signal Vd; the controller determines the current ambient temperature T of the night lamp according to the voltage signal Vd and generates a corresponding temperature compensation coefficient Kd according to the temperature T; then the controller acquires a comparison result of the voltage comparator in real time, and when the result represents that the pyroelectric infrared sensor senses the user activity, the controller controls the LED light-emitting unit to perform auxiliary night lighting by taking second brightness as the user;
wherein the second brightness is higher than the first brightness.
Further, the controller controls the LED driving circuit to operate at a first frequency f1 for a first predetermined time period T0, and controls the LED driving circuit to operate at a second frequency f2 for a second predetermined time period T1, wherein T1 > T0, and f2 > f 1.
In addition, in order to improve the accuracy of the detected voltage, the voltage signal Vd is smoothed by a low-pass filter.
Further, the LED driving circuit adopts a driving circuit based on a power switch, and the controller outputs a PWM signal to control the on-off work of the power switch; the detection voltage signal Vd is the anode voltage of the LED, and the controller is stored with the corresponding relation between the anode voltage of the LED and the temperature T in advance.
Further, the relationship between the temperature T and the temperature compensation coefficient Kd is: kd |37-T |/37.
The invention also provides an intelligent night lamp control method based on temperature compensation, which is based on the control circuit and comprises the following steps:
step 1, when entering a night mode, a microphone detection circuit carries out periodic detection;
step 2, outputting a first control signal to a controller when the microphone detection circuit collects a sound signal higher than a preset value in a detection period;
step 3, the controller controls the LED light-emitting unit to make breathing flicker with first brightness within a first preset time period T0 after receiving the first control signal,
step 4, the controller receives an anode voltage signal Vd of the LED light-emitting unit fed back at the sampling point;
step 5, the controller obtains the current ambient temperature T of the night lamp according to the corresponding relation between the voltage signal Vd and the ambient temperature T, and generates a corresponding temperature compensation coefficient Kd according to the temperature T;
step 6, comparing the output signal of the pyroelectric infrared sensor with the product of the temperature compensation coefficient Kd and the reference voltage to obtain a voltage comparison result;
step 7, the controller acquires a voltage comparison result in real time, and when the voltage comparison result represents that the pyroelectric infrared sensor senses an effective active user, the controller controls the LED light-emitting unit to perform auxiliary night lighting by taking second brightness as the user;
wherein the second brightness is higher than the first brightness.
Further, the control method further includes: the controller controls the LED driving circuit to work at a first frequency f1 in a first preset time period T0, and controls the LED driving circuit to work at a second frequency f2 in a second preset time period T1, wherein T1 is more than T0, and f2 is more than f 1;
in addition, when the output signal of the pyroelectric infrared sensor is obtained for 2 times in succession and is higher than the product, the pyroelectric infrared sensor is characterized to sense a valid active user; the relationship between the temperature T and the temperature compensation coefficient Kd in the step 5 is as follows: kd |37-T |/37.
The invention creatively provides a night illumination control scheme based on temperature compensation, improves the defects of the existing night illumination, improves the accuracy of the night illumination and reduces the condition that a light source is turned on by mistake; furthermore, ambient temperature sensing is achieved by utilizing the existing circuit of the lamp at the lowest cost, and the sensing result of the sensing module is effectively compensated based on the temperature sensing result, so that the most accurate measurement is achieved at the lowest cost, the user experience is optimized finally, and many defects in the existing system are effectively overcome.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
Fig. 1 shows a typical configuration diagram of a pyroelectric infrared sensor.
Fig. 2 is a schematic diagram of an intelligent night light control circuit with temperature compensation according to an embodiment of the present invention.
Fig. 3 is a graph illustrating a relationship between a voltage Vd and a temperature T according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The pyroelectric infrared sensor can detect infrared rays emitted by human or some animals and convert the infrared rays into electric signals for output, is a detection element capable of detecting infrared rays emitted by human bodies, and can detect changes of infrared energy radiated by the human bodies in a non-contact mode and convert the infrared energy into voltage signals for output. The output voltage signal is amplified to drive various control circuits. Fig. 1 shows a typical configuration diagram of a pyroelectric infrared sensor, and details of the specific principle thereof are not described herein, which belongs to the technical field.
In view of the above-mentioned disadvantages of the existing night lighting, fig. 2 is a schematic diagram of a control circuit of an intelligent night light with temperature compensation according to an embodiment of the present invention, wherein the pyroelectric infrared sensor may adopt the structure shown in fig. 1. As shown in fig. 2, the night light control circuit includes a pyroelectric infrared sensor 1, which outputs a pyroelectric infrared detection signal to a first input terminal of a voltage comparator 4, another input terminal of the voltage comparator 4 is connected to an output terminal of a multiplier 3, the first input terminal of the multiplier 3 is connected to a reference voltage generating circuit 2, another input terminal is connected to a temperature compensation coefficient Kd, the multiplier is used for multiplying a reference voltage Vf by the temperature compensation coefficient Kd to compensate the influence of temperature variation on the pyroelectric infrared sensor, and the output terminal of the voltage comparator 4 is connected to a controller 5; the output ends of the microphone detection circuit 7 and the other setting circuits 8 are respectively connected with the controller 5, and are used for outputting microphone detection signals and other setting signals to the controller so as to trigger the controller 5 to perform corresponding control. The first output end of the controller 5 is connected with an LED driving circuit, the LED driving circuit and the LED light-emitting unit are sequentially connected between a power supply anode Vcc and a power supply ground, and a detection voltage signal Vd is fed back to the controller from a connection point s of the LED driving circuit and the LED light-emitting unit. The LED driving circuit may adopt a switch driving circuit, which includes a power switch Q1, and the controller 5 outputs a PWM signal to control the on/off operation of the power switch Q1. The detection voltage signal Vd is the anode voltage of the LED, and the LED light-emitting unit is arranged on the low potential side, so that the anode voltage of the LED is in direct proportion to the forward voltage drop of the LED, and the required voltage can be sampled only by one sampling point S. The controller is pre-stored with the corresponding relation between the anode voltage and the temperature of the LED.
Specifically, when a current is input to the LED and kept constant, the relationship between the temperature at which the LED is located and the detection voltage Vd is: vd ═ nk/q) ln (Id/I0) + Rs × Id, where: vd denotes the LED anode voltage, n is a parameter, k is the boltzmann constant, q is the electronic charge, Id is the LED forward current, I0 is the reverse saturation current, and Rs is the resistance. When the temperature of the LED rises, I0 will increase, and voltage Vd will decrease.
As an embodiment, fig. 3 is a relationship curve of voltage Vd and temperature T of an LED measured by using a 1W common forward-mounted GaN-based LED, where the curve is obtained by linear fitting: vd is 3.42-0.0022T and R2 is 0.9946, it can be derived from fig. 3 and the formula that the forward voltage is linearly related to the junction temperature.
The principle of the control circuit is as follows: when the system is in a night mode, for example, the system is in a night period or the brightness sensor detects that the brightness is lower than a preset value, the microphone detection circuit carries out periodic detection; outputting an enable signal to the controller 5 when the microphone detection circuit collects a sound signal higher than a predetermined value during a detection period; when receiving an enable signal output by the microphone detection circuit, the controller 5 controls the LED driving circuit to operate at a first frequency f1 within a first predetermined time period T0, and then the LED light-emitting unit performs breathing flicker at a first brightness that does not affect the sleep of the user; meanwhile, the controller 5 receives a voltage signal Vd fed back by a sampling point s, the controller 5 obtains the current ambient temperature T of the night lamp according to the voltage signal Vd by looking up a table or calculating through a formula, and generates a corresponding temperature compensation coefficient kd according to the temperature T. And then the controller acquires the comparison result of the voltage comparator in real time, when the voltage comparator outputs a high level, the pyroelectric infrared sensor is represented to sense an effective active user, at the moment, the controller controls the LED driving circuit to work at a second frequency f2 within a second preset time period T1, and then the LED light-emitting unit performs auxiliary night lighting for the user with higher second brightness. Wherein, T1 is more than T0, f2 is more than f1, preferably, f2 is 10-100 times of f 1. In order to improve the accuracy of temperature detection, the voltage signal Vd is also smoothed by a low-pass filter.
Further, the voltage comparator 4 compares the output signal OUT of the pyroelectric infrared sensor with the output signal of the multiplier 3, and outputs a high level when OUT is higher than the output signal of the multiplier 3.
Wherein, the relationship between the temperature T and the temperature compensation coefficient Kd is as follows: the higher the temperature, the smaller the Kd. As another embodiment, the relationship between the temperature T and the temperature compensation coefficient Kd is: kd |37-T |/37, and the pyroelectric infrared sensor can accurately detect the active user through the arrangement.
Based on the control circuit, the invention also provides an intelligent night lamp control method with temperature compensation, which specifically comprises the following steps:
step 1, when in a night mode, the microphone detection circuit carries out periodic detection;
the night mode is determined by other setting circuits, for example, the controller enables the microphone detection circuit to operate after a preset time period, such as a night time period 22:00-8:00, is entered by the system, or the brightness sensor detects that the brightness is lower than a predetermined value. A brightness below a predetermined value indicates that insufficient ambient light is present for the user to have a need for supplemental lighting.
Step 2, outputting an enabling signal to the controller 5 when the microphone detection circuit collects a sound signal higher than a preset value in a detection period, namely, a temperature detection signal for triggering the controller to determine the ambient temperature;
step 3, when receiving a temperature detection signal output by the microphone detection circuit, the controller 5 controls the LED driving circuit to work at a first frequency f1 within a first preset time period T0, and then the LED light-emitting unit performs breathing flicker at a first brightness which does not affect the sleep of the user;
step 4, the controller 5 receives an anode voltage signal Vd of the LED light-emitting unit fed back at the sampling point s;
step 5, the controller 5 searches a relation table according to the corresponding relation between the voltage signal Vd and the ambient temperature T, for example, so as to obtain the ambient temperature T of the current night lamp, and generates a corresponding temperature compensation coefficient Kd according to the temperature T;
step 6, comparing the output signal of the pyroelectric infrared sensor with the product of a temperature compensation coefficient Kd and a reference voltage;
and 7, the controller 5 acquires a voltage comparison result in real time, when the output signal of the pyroelectric infrared sensor obtained for 2 times continuously is higher than the product, the pyroelectric infrared sensor is represented to sense an effective active user, and the controller controls the LED driving circuit to work at a second frequency f2 within a second preset time period T1 so that the LED light-emitting unit performs auxiliary night lighting for the user at a higher second brightness.
Wherein, T1 is more than T0, f2 is more than f1, preferably, f2 is 10-100 times of f 1.
As another example, the temperature T is determined by the relationship Vd of 3.42 to 0.0022T.
As a further embodiment, the relationship between the temperature T and the temperature compensation coefficient Kd is: kd |37-T |/37.
According to the invention, the influence caused by the false triggering of the night lamp is reduced to the maximum extent through the graded brightness control, and the sleep continuity of a user is ensured; and the accuracy of control is improved through the double sensing of the microphone and the pyroelectric infrared.
In addition, in order to compensate the influence of the room background temperature, the invention also creatively combines the LED characteristics to carry out the temperature compensation of the sensor, thereby improving the control precision with the lowest cost and high efficiency.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the scope of the present invention should be determined by the following claims.

Claims (10)

1. The utility model provides an intelligence night-light control circuit with temperature compensation which characterized in that: the control circuit comprises a pyroelectric infrared sensor, the pyroelectric infrared sensor outputs a pyroelectric infrared detection signal to a first input end of a voltage comparator, the other input end of the voltage comparator is connected with the output end of a multiplier, the first input end of the multiplier is connected with the reference voltage generating circuit, the other input end of the multiplier is connected with the temperature compensation coefficient Kd, and the output end of the voltage comparator is connected with a controller;
the output end of the microphone detection circuit is connected with the controller and used for outputting a microphone detection signal to the controller so as to trigger the controller to perform corresponding control;
the first output end of the controller is connected with the LED driving circuit, and the LED driving circuit and the LED light-emitting unit are sequentially connected between the positive electrode of the power supply and the power ground;
the connection point of the LED driving circuit and the LED light-emitting unit feeds back a detection voltage signal Vd to the controller;
the corresponding control is specifically as follows:
outputting a first control signal to the controller when the microphone detection circuit collects a sound signal higher than a predetermined value in a detection period; the controller controls the LED light-emitting unit to perform breathing flicker with first brightness within a first preset time period T0 after receiving a first control signal, and meanwhile, the controller receives a voltage signal Vd;
the controller determines the current ambient temperature T of the night lamp according to the voltage signal Vd and generates a corresponding temperature compensation coefficient Kd according to the temperature T;
then the controller acquires a comparison result of the voltage comparator in real time, and when the result represents that the pyroelectric infrared sensor senses the user activity, the controller controls the LED light-emitting unit to perform auxiliary night lighting by taking second brightness as the user;
wherein the second brightness is higher than the first brightness.
2. The control circuit of claim 1, wherein: the controller controls the LED driving circuit to work at a first frequency f1 in a first preset time period T0, and controls the LED driving circuit to work at a second frequency f2 in a second preset time period T1, wherein T1 is more than T0, and f2 is more than f 1.
3. The control circuit of claim 1, wherein: the voltage signal Vd is also smoothed by a low-pass filter.
4. The control circuit of claim 2, wherein: the LED driving circuit adopts a driving circuit based on a power switch, and the controller outputs a PWM signal to control the on-off work of the power switch.
5. The control circuit of any of claims 1-4, wherein: the detection voltage signal Vd is the anode voltage of the LED, and the controller is stored with the corresponding relation between the anode voltage of the LED and the temperature T in advance.
6. The control circuit of any of claims 1-4, wherein: the relationship between the temperature T and the temperature compensation coefficient Kd is: kd |37-T |/37.
7. The utility model provides an intelligence night-light control method based on temperature compensation which characterized in that: the method comprises the following steps:
step 1, when entering a night mode, a microphone detection circuit carries out periodic detection;
step 2, outputting a first control signal to a controller when the microphone detection circuit collects a sound signal higher than a preset value in a detection period;
step 3, the controller controls the LED light-emitting unit to make breathing flicker with first brightness within a first preset time period T0 after receiving the first control signal,
step 4, the controller receives an anode voltage signal Vd of the LED light-emitting unit fed back at the sampling point;
step 5, the controller obtains the current ambient temperature T of the night lamp according to the corresponding relation between the voltage signal Vd and the ambient temperature T, and generates a corresponding temperature compensation coefficient Kd according to the temperature T;
step 6, comparing the output signal of the pyroelectric infrared sensor with the product of the temperature compensation coefficient Kd and the reference voltage to obtain a voltage comparison result;
step 7, the controller acquires a voltage comparison result in real time, and when the voltage comparison result represents that the pyroelectric infrared sensor senses an effective active user, the controller controls the LED light-emitting unit to perform auxiliary night lighting by taking second brightness as the user;
wherein the second brightness is higher than the first brightness.
8. The control method according to claim 7, characterized by further comprising: the controller controls the LED driving circuit to work at a first frequency f1 in a first preset time period T0, and controls the LED driving circuit to work at a second frequency f2 in a second preset time period T1, wherein T1 is more than T0, and f2 is more than f 1.
9. The control method of claim 7, wherein when the output signal of the pyroelectric infrared sensor is obtained 2 times in succession, it is characterized that the pyroelectric infrared sensor senses a valid active user.
10. The control method according to claim 9, wherein the relationship between the temperature T and the temperature compensation coefficient Kd in step 5 is: kd |37-T |/37.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2789783C1 (en) * 2022-03-15 2023-02-09 Федеральное государственное казенное военное образовательное учреждение высшего образования "Военный учебно-научный центр Военно-Морского Флота "Военно-морская академия имени Адмирала флота Советского Союза Н.Г. Кузнецова" Temperature control device for high-power generator lamps

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007125873A1 (en) * 2006-04-24 2007-11-08 Asahi Kasei Emd Corporation Infrared sensor
CN101626652A (en) * 2009-08-12 2010-01-13 江苏银佳企业集团有限公司 Dimmable LED constant current source driver with wide voltage range
US20100141159A1 (en) * 2008-12-08 2010-06-10 Green Solution Technology Inc. Led driving circuit and controller with temperature compensation thereof
CN101841962A (en) * 2010-06-07 2010-09-22 上海合亚经贸有限公司 LED lamp control method and device without light decay
US20110062895A1 (en) * 2009-09-17 2011-03-17 Dialog Semiconductor Gmbh Circuit for driving an infrared transmitter LED with temperature compensation
CN102573186A (en) * 2010-12-24 2012-07-11 苏州明玖节能科技有限公司 High-efficiency LED (Light Emitting Diode) illumination control system
CN102665314A (en) * 2012-05-22 2012-09-12 厦门华联电子有限公司 Improved MPPT (Maximum Power Point Tracking) algorithm and LED (Light Emitting Diode) street lamp system based on algorithm
CN102711335A (en) * 2012-06-14 2012-10-03 沈阳新一代信息技术有限公司 Light-emitting diode (LED) energy-saving lamp intelligent control device and control method
CN202648801U (en) * 2012-03-16 2013-01-02 温州市凯能电子科技有限公司 Passive infrared detector
US8373125B2 (en) * 2010-08-30 2013-02-12 Wenzhou Mtlc Electric Appliances Co., Ltd. Occupancy detector switch
CN103607828A (en) * 2013-12-04 2014-02-26 青岛锐晶光电科技有限公司 LED street lamp electricity saving control method
CN103945615A (en) * 2014-04-30 2014-07-23 长兴泛亚照明电器有限公司 Node controller of illumination system of parking lot
CN204305394U (en) * 2014-09-05 2015-04-29 成都赛昂电子科技有限公司 A kind of light emitting diode garage lights for garage
CN205958639U (en) * 2016-07-20 2017-02-15 国网江苏省电力公司南通供电公司 High voltage live display device is reminded to intelligence
US20170055326A1 (en) * 2014-08-05 2017-02-23 Svetlana Eden Apparatus for Precise Temperature Brightness Compensation of LED
CN208158962U (en) * 2018-05-22 2018-11-27 千语菱(厦门)数字科技有限公司 A kind of intelligent lighting controls module
CN110082836A (en) * 2019-04-11 2019-08-02 深圳市领航卫士安全技术有限公司 A kind of human body recognition method based on infrared sensor, device and equipment

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007125873A1 (en) * 2006-04-24 2007-11-08 Asahi Kasei Emd Corporation Infrared sensor
US20100141159A1 (en) * 2008-12-08 2010-06-10 Green Solution Technology Inc. Led driving circuit and controller with temperature compensation thereof
CN101626652A (en) * 2009-08-12 2010-01-13 江苏银佳企业集团有限公司 Dimmable LED constant current source driver with wide voltage range
US20110062895A1 (en) * 2009-09-17 2011-03-17 Dialog Semiconductor Gmbh Circuit for driving an infrared transmitter LED with temperature compensation
CN101841962A (en) * 2010-06-07 2010-09-22 上海合亚经贸有限公司 LED lamp control method and device without light decay
US8373125B2 (en) * 2010-08-30 2013-02-12 Wenzhou Mtlc Electric Appliances Co., Ltd. Occupancy detector switch
CN102573186A (en) * 2010-12-24 2012-07-11 苏州明玖节能科技有限公司 High-efficiency LED (Light Emitting Diode) illumination control system
CN202648801U (en) * 2012-03-16 2013-01-02 温州市凯能电子科技有限公司 Passive infrared detector
CN102665314A (en) * 2012-05-22 2012-09-12 厦门华联电子有限公司 Improved MPPT (Maximum Power Point Tracking) algorithm and LED (Light Emitting Diode) street lamp system based on algorithm
CN102711335A (en) * 2012-06-14 2012-10-03 沈阳新一代信息技术有限公司 Light-emitting diode (LED) energy-saving lamp intelligent control device and control method
CN103607828A (en) * 2013-12-04 2014-02-26 青岛锐晶光电科技有限公司 LED street lamp electricity saving control method
CN103945615A (en) * 2014-04-30 2014-07-23 长兴泛亚照明电器有限公司 Node controller of illumination system of parking lot
US20170055326A1 (en) * 2014-08-05 2017-02-23 Svetlana Eden Apparatus for Precise Temperature Brightness Compensation of LED
CN204305394U (en) * 2014-09-05 2015-04-29 成都赛昂电子科技有限公司 A kind of light emitting diode garage lights for garage
CN205958639U (en) * 2016-07-20 2017-02-15 国网江苏省电力公司南通供电公司 High voltage live display device is reminded to intelligence
CN208158962U (en) * 2018-05-22 2018-11-27 千语菱(厦门)数字科技有限公司 A kind of intelligent lighting controls module
CN110082836A (en) * 2019-04-11 2019-08-02 深圳市领航卫士安全技术有限公司 A kind of human body recognition method based on infrared sensor, device and equipment

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
文尚胜: "《半导体照明技术》", 31 August 2013, 华南理工大学出版社 *
赵玲: "智能LED节能照明系统的设计", 《半导体技术》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2789783C1 (en) * 2022-03-15 2023-02-09 Федеральное государственное казенное военное образовательное учреждение высшего образования "Военный учебно-научный центр Военно-Морского Флота "Военно-морская академия имени Адмирала флота Советского Союза Н.Г. Кузнецова" Temperature control device for high-power generator lamps

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