CN112804794B - Thing networking lighting control device and system - Google Patents

Thing networking lighting control device and system Download PDF

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Publication number
CN112804794B
CN112804794B CN202110342468.9A CN202110342468A CN112804794B CN 112804794 B CN112804794 B CN 112804794B CN 202110342468 A CN202110342468 A CN 202110342468A CN 112804794 B CN112804794 B CN 112804794B
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internet
module
things
resistor
brightness
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CN112804794A (en
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彭日宣
钟廉广
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Guangzhou Yige Intelligent Technology Co ltd
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Guangzhou Yige Intelligent 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
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30Driver circuits
    • H05B45/355Power factor correction [PFC]; Reactive power compensation
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30Driver circuits
    • H05B45/345Current stabilisation; Maintaining constant current
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30Driver circuits
    • H05B45/37Converter circuits
    • H05B45/3725Switched mode power supply [SMPS]
    • H05B45/38Switched mode power supply [SMPS] using boost topology
    • 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
    • H05B47/105Controlling the light source in response to determined parameters
    • H05B47/11Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • 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
    • H05B47/175Controlling the light source by remote control
    • H05B47/19Controlling the light source by remote control via wireless transmission
    • 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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The invention provides an Internet of things lighting control device which comprises at least one Internet of things lamp module, wherein at least one of the Internet of things lamp modules comprises an Internet of things module, and a sensor is arranged on the Internet of things module; according to the invention, the communication connection is established between the Internet of things module and the intelligent terminal, the reference brightness of the illumination area radiated by the Internet of things illumination control device and sent by the intelligent terminal is received, the ambient brightness of the illumination area radiated by the Internet of things illumination control device is detected, and when the ambient brightness of the illumination area is deviated from the reference brightness of the illumination area, the brightness of the Internet of things lamp module is adjusted to be the reference brightness, so that the automatic adjustment of the light is realized, the accuracy of the light adjustment is improved, and the problem that the balance and the accurate adjustment of the brightness of the illumination area are difficult to realize when the number of lamps is large in the same illumination area is effectively solved.

Description

Thing networking lighting control device and system
Technical Field
The invention relates to the technical field of electronics, in particular to an Internet of things illumination control device and system.
Background
In living environments such as classrooms, offices, hotels and the like, illumination is not uniform due to large indoor area, few windows and the like; and because outside illumination intensity is different, can produce different illumination luminance indoor under different time, for example noon sunlight is stronger, and the light of shining into indoor is also stronger, and indoor illumination is bright, and then indoor light is darker night. The change of light can cause discomfort to eyes, and the indoor decoration can also produce different effects due to the change of light. In the prior art, the light brightness is mainly adjusted in a manual adjusting mode, but the manual adjustment is very troublesome, and the light brightness is difficult to be accurately adjusted when the number of lights is large.
Disclosure of Invention
The invention provides an Internet of things illumination control device and system, and aims to solve the problems of low automation degree, unbalanced brightness and inaccurate adjustment in the conventional lamplight brightness adjustment mode.
The invention is realized in such a way that the lighting control device of the internet of things comprises:
at least one of the Internet of things lamp modules comprises an Internet of things module, and a sensor is arranged on the Internet of things module;
the Internet of things module is used for establishing communication connection with the intelligent terminal, receiving the reference brightness sent by the intelligent terminal and detecting the ambient brightness of the illumination area radiated by the Internet of things illumination control device, and when the ambient brightness of the illumination area and the reference brightness have deviation, the brightness of the Internet of things lamp module is adjusted to be the reference brightness.
Optionally, the internet of things lamp module includes:
the LED lamp comprises a rectification filtering module, a power factor correction module and an LED lamp group;
the input end of the rectification filter module is connected with a power grid, and the output end of the rectification filter module is connected with the first end of the power factor correction module;
the second end of the power factor correction module is connected with the first end of the LED lamp bank;
the second end of the LED lamp group is connected with the control signal output end of the Internet of things module;
the rectification filter circuit is used for receiving alternating current from a power grid and converting the alternating current into direct current; the power factor correction module is used for boosting the direct current output by the rectifying and filtering circuit and providing the boosted direct current to the LED lamp bank; the LED lamp bank receives the boosted direct current and a control signal output by the Internet of things module, and changes the brightness according to the control signal to achieve the reference brightness.
Optionally, the internet of things lamp module further comprises:
the system comprises a power supply module and an Internet of things module;
the input end of the power supply module is connected with the second end of the power factor correction module;
the output end of the power supply module is connected with the power input end of the Internet of things module;
the Internet of things module comprises a control signal output end, and the control signal output end is connected with the LED lamp set of the Internet of things lamp module;
the power supply module is used for receiving boosted direct current output by the power factor correction module and providing electric energy for the Internet of things module according to the boosted direct current;
the Internet of things module is used for establishing communication connection with an intelligent terminal, receiving the reference brightness sent by the intelligent terminal and detecting the ambient brightness of an illumination area radiated by the Internet of things illumination control device, and when the ambient brightness of the illumination area and the reference brightness have deviation, the PWM signal is output to the Internet of things lamp module through the control signal output end so as to adjust the brightness of the Internet of things lamp module to be the reference brightness.
Optionally, a sensor on the internet of things module is arranged in the corresponding illumination area radiated by the internet of things lamp module and is used for detecting the corresponding ambient brightness of the illumination area radiated by the internet of things lamp module.
Optionally, the internet of things module includes a plurality of control signal output ends; each control signal output end is connected with the LED lamp set of one Internet of things lamp module.
Optionally, the sensor on the internet of things module is arranged outdoors or indoors near a window and used for monitoring brightness change of the environment.
Optionally, the power factor correction module comprises:
the circuit comprises an APFC boost chip, a first capacitor, a second capacitor, a third capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first inductor, a first diode, a second diode and an electrolytic capacitor;
a common joint point among the anode of the first diode, the first end of the first capacitor, the first end of the first inductor and the first end of the first resistor is used as the first end of the power factor correction module;
the second end of the first resistor is connected with the first end of the second resistor, and a common joint between the second end of the second resistor and the first end of the second capacitor is connected with a power supply end of the APFC boosting chip;
a common joint between the second end of the first inductor and the anode of the second diode is connected with the drain electrode of the internal high-voltage power tube of the APFC boosting chip;
a common junction point among the cathode of the first diode, the cathode of the second diode and the first end of the third resistor is connected with a common junction point between the second end of the first capacitor and the anode of the electrolytic capacitor;
a common joint point between the second end of the first capacitor and the anode of the electrolytic capacitor is used as the second end of the power factor correction module, and the cathode of the electrolytic capacitor is grounded;
the second end of the third resistor is connected with the first end of the fourth resistor;
a common junction point between the second end of the fourth resistor and the feedback voltage input end of the APFC boosting chip is connected with a common junction point between the first end of the fifth resistor and the first end of the third capacitor;
the second end of the fifth resistor, the second end of the third capacitor and the ground end of the APFC boosting chip U1 are connected to the ground in common;
a common joint between the first end of the sixth resistor and the first end of the seventh resistor is connected with the current sampling end of the APFC boost chip;
the second capacitor, the sixth resistor and the seventh resistor are connected to the ground in common.
Optionally, the LED light group includes:
the LED driving circuit comprises a constant current driving chip and an LED lamp string;
the second end of the power factor correction module is respectively connected with the first end of the LED lamp string and the first end of the constant current driving chip, and the second end of the LED lamp string is grounded;
the second end of the constant current driving chip is connected with the control signal output end of the Internet of things module;
and the third end of the constant current driving chip is connected with the third end of the LED lamp string.
Optionally, the internet of things module includes one or more of a bluetooth module, a ZigBee module, a WiFi module, an infrared communication module, a 2G/3G internet of things card, and an ultrasonic communication module.
An Internet of things lighting control system comprises an intelligent terminal and the Internet of things lighting control device;
the Internet of things lighting control device is communicated with the intelligent terminal through an Internet of things module.
The invention provides an Internet of things lighting control device which comprises at least one Internet of things lamp module, wherein at least one of the Internet of things lamp modules comprises an Internet of things module, and a sensor is arranged on the Internet of things module; according to the invention, the Internet of things module is in communication connection with the intelligent terminal, the reference brightness sent by the intelligent terminal is received, the ambient brightness of the illumination area radiated by the Internet of things illumination control device is detected, and when the ambient brightness is deviated from the reference brightness, the brightness of the Internet of things lamp module is adjusted to be the reference brightness, so that the automatic adjustment of the light is realized, the accuracy of the light adjustment is improved, and the problem that the balance and the accurate adjustment of the brightness of the illumination area are difficult to realize when the number of lamps is large in the same illumination area is effectively solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic diagram of an internet of things lighting control device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an internet of things lighting control device according to another embodiment of the present invention;
fig. 3 is a schematic view of an internet of things lamp module according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an internet of things lighting control system 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, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides an Internet of things lighting control device which comprises at least one Internet of things lamp module, wherein at least one of the Internet of things lamp modules comprises an Internet of things module, and a sensor is arranged on the Internet of things module; according to the invention, the Internet of things module is in communication connection with the intelligent terminal, the reference brightness sent by the intelligent terminal is received, the ambient brightness of the illumination area radiated by the Internet of things illumination control device is detected, and when the ambient brightness is deviated from the reference brightness, the brightness of the Internet of things lamp module is adjusted to be the reference brightness, so that the automatic adjustment of the light is realized, the accuracy of the light adjustment is improved, and the problem that the balance and the accurate adjustment of the brightness of the illumination area are difficult to realize when the number of lamps is large in the same illumination area is effectively solved.
In an embodiment of the present invention, the lighting control device of the internet of things includes:
at least one internet of things lamp module 1, wherein at least one of the internet of things lamp modules 1 comprises an internet of things module 10, and a sensor 11 is arranged on the internet of things module 10;
the internet of things module 10 is used for establishing communication connection with an intelligent terminal, receiving the reference brightness sent by the intelligent terminal and detecting the ambient brightness of the illumination area radiated by the internet of things illumination control device, and when the ambient brightness of the illumination area and the reference brightness have deviation, the brightness of the internet of things lamp module 1 is adjusted to be the reference brightness.
In the embodiment of the invention, each internet of things lamp module 1 may be provided with an internet of things module 10, or only one internet of things lamp module 1 may be selected to be provided with an internet of things module 10. The two cases will be described in detail below.
As a preferred example of the present invention, fig. 1 is a schematic diagram of an internet-of-things lighting control device provided in an embodiment of the present invention. As shown in fig. 1, in an embodiment of the present invention, an internet of things module 10 is disposed on one of the internet of things lamp modules 1, and is denoted as a central module, and the others are denoted as peripheral modules. The lighting control device for the Internet of things is applied to a large indoor space provided with a plurality of Internet of things lamp modules 1. Each peripheral module and central module all include:
the LED lamp comprises a rectification filter module 20, a power factor correction module 30 and an LED lamp group 40;
the input end of the rectification filter module 20 is connected with a power grid, and the output end of the rectification filter module is connected with the first end of the power factor correction module 30;
the second end of the power factor correction module 30 is connected with the first end of the LED lamp set 40;
the second end of the LED lamp set 40 is connected to the control signal output end of the internet of things module 10;
the rectifier filter circuit 20 is configured to receive an alternating current from a power grid and convert the alternating current into a direct current; the power factor correction module 30 is configured to boost the direct current output by the rectifying and filtering circuit 20, and provide the boosted direct current to the LED lamp set 40; the LED lamp set 40 receives the boosted dc and the control signal output by the internet of things module 10, and changes the luminance according to the control signal to achieve the reference luminance. The control signal is a PWM signal.
The center module still includes on this basis:
the power supply module 50 and the internet of things module 10;
the input end of the power supply module 50 is connected with the second end of the power factor correction module;
the output end of the power supply module 50 is connected with the power input end of the internet of things module 10;
the internet of things module 10 comprises a control signal output end, and the control signal output end is connected with the LED lamp set 40 of the internet of things lamp module 1.
The power supply module 50 is configured to receive the boosted direct current output by the power factor correction module 30, and provide electric energy to the internet of things module 10 according to the boosted direct current;
the internet of things module 10 is used for establishing communication connection with an intelligent terminal, receiving the reference brightness sent by the intelligent terminal and detecting the ambient brightness of the illumination area radiated by the internet of things illumination control device, and when the ambient brightness of the illumination area and the reference brightness have deviation, the PWM signal is output to the internet of things lamp module 1 through the control signal output end so as to adjust the brightness of the internet of things lamp module 1 to be the reference brightness.
In the embodiment of the present invention, the internet of things module 10 includes, but is not limited to, one or more of a bluetooth module, a ZigBee module, a WiFi module, an infrared communication module, a 2G/3G internet of things card, and an ultrasonic communication module. The internet of things module 10 is used for connecting and communicating with an external terminal, such as a smart phone, a smart watch, a tablet computer and other smart terminals, through a wireless network, so as to receive reference brightness from the smart terminals. The user can set the reference brightness of the lighting control device of the internet of things through the intelligent terminal, namely, the target brightness of the lighting environment radiated by the lighting control device of the internet of things is set.
Here, the internet of things module 10 includes a plurality of control signal outputs. Each control signal output end is connected with the LED lamp set 40 of one Internet of things lamp module 1. How many internet of things lamp modules 1, how many control signal output ends. The internet of things module 10 establishes communication connection with an intelligent terminal, receives the reference brightness sent by the intelligent terminal, and detects the ambient brightness of an illumination area radiated by the internet of things illumination control device through a sensor on the internet of things module; when the ambient brightness and the reference brightness have a deviation, outputting a PWM signal to each Internet of things lamp module 1 through the control signal output end, and adjusting the brightness of the Internet of things lamp module to be the reference brightness by changing the driving power of an LED lamp group 40 in the Internet of things lamp module 1; therefore, automatic light adjustment is realized, the accuracy of light adjustment is improved, the problem that accurate adjustment is difficult to carry out when the number of lights in the same illumination area is large is effectively solved, and the illumination brightness is balanced.
Optionally, in order to obtain more accurate ambient brightness, the sensor 11 on the internet of things module 10 is disposed outdoors or indoors near a window for monitoring the change of the ambient brightness.
As another preferred example of the present invention, fig. 2 is a schematic diagram of an internet-of-things lighting control device provided in an embodiment of the present invention. As shown in fig. 2, in an embodiment of the present invention, each of the internet of things lamp modules 1 is provided with a corresponding internet of things module 10. The lighting control device of the internet of things provided by the embodiment of the invention is applied to a scene in which a plurality of indoor spaces are divided, and each indoor space is provided with at least one internet of things lamp module 1.
Each internet of things lamp module 10 all includes:
the system comprises an internet of things module 10, a rectifying and filtering module 20, a power factor correction module 30, an LED lamp group 40 and a power supply module 50;
the input end of the rectification filter module 20 is connected with a power grid, and the output end of the rectification filter module is connected with the first end of the power factor correction module 30;
the second end of the power factor correction module 30 is connected with the first end of the LED lamp set 40;
the second end of the LED lamp set 40 is connected to the control signal output end of the internet of things module 10;
the input end of the power supply module 50 is connected with the second end of the power factor correction module;
the output end of the power supply module 50 is connected with the power input end of the internet of things module 10;
the internet of things module 10 comprises a control signal output end, and the control signal output end is connected with the LED lamp set 40 of the internet of things lamp module 1;
the rectifier filter circuit 20 is configured to receive an alternating current from a power grid and convert the alternating current into a direct current; the power factor correction module 30 is configured to boost the direct current output by the rectifying and filtering circuit 20, and provide the boosted direct current to the LED lamp set 40; the power supply module 50 is configured to receive the boosted direct current output by the power factor correction module 30, and provide electric energy to the internet of things module 10 according to the boosted direct current;
the internet of things module 10 is used for establishing communication connection with an intelligent terminal, receiving reference brightness sent by the intelligent terminal, and detecting ambient brightness of an illumination area radiated by the internet of things illumination control device, and when the ambient brightness is deviated from the reference brightness, outputting a PWM signal to the internet of things lamp module 1 through the control signal output end to adjust the brightness of the internet of things lamp module 1 to be the reference brightness;
the LED lamp set 40 receives the boosted dc and the control signal output by the internet of things module 10, and changes the luminance according to the control signal to achieve the reference luminance.
Likewise, in the embodiment of the present invention, the internet of things module 10 includes, but is not limited to, one or more of a bluetooth module, a ZigBee module, a WiFi module, an infrared communication module, a 2G/3G internet of things card, and an ultrasonic communication module. The internet of things module 10 is used for connecting and communicating with an external terminal, such as a smart phone, a smart watch, a tablet computer and other smart terminals, through a wireless network, so as to receive reference brightness from the smart terminals. The user can set the reference brightness of the lighting control device of the internet of things through the intelligent terminal, namely, the target brightness of the lighting environment radiated by the lighting control device of the internet of things is set.
Unlike the embodiment of fig. 1, the internet of things module 10 includes a control signal output terminal. The control signal output end is connected with the LED lamp set 40 of the corresponding Internet of things lamp module 1. The internet of things module 10 receives the reference brightness sent by the intelligent terminal through establishing communication connection with the intelligent terminal, detects the corresponding ambient brightness of the illumination area radiated by the internet of things lamp module 1 through a sensor on the internet of things module 10, and when the ambient brightness deviates from the reference brightness, the PWM signals are output to the internet of things lamp module 1 through the control signal output end, so that the driving power of the LED lamp group 40 in the internet of things lamp module 1 is changed, the brightness of the internet of things lamp module is adjusted to the reference brightness, the automatic adjustment of the light is realized, the accuracy of the light adjustment is improved, the problem that the accurate adjustment is difficult to carry out when the number of the light in the same illumination area is large is effectively solved, and the equalization of the illumination brightness is realized.
Optionally, in the embodiment of the present invention, in order to obtain more accurate ambient brightness, the sensor 11 on the internet of things module 10 is disposed in the illumination area radiated by the corresponding internet of things lamp module 1, and is configured to detect the ambient brightness of the illumination area radiated by the corresponding internet of things lamp module 1. If an indoor space corresponds the illumination area that an thing networking lamp module 1 radiated, each indoor space can carry out independent control to its illumination brightness for the illumination brightness in each space is more balanced.
In the above embodiments of fig. 1 and 2, the rectifying and filtering circuit 20 rectifies the electrical signal provided by the power grid by using bridge rectification. The electric signal after passing through the rectifying and filtering circuit 20 is subjected to boosting processing by using the power factor correction module 30, and then is provided to the LED lamp set at the subsequent stage.
Optionally, as shown in fig. 3, a schematic circuit diagram of an internet of things lamp module 1 according to an embodiment of the present invention is provided.
As shown in fig. 3, the power factor correction module 30 includes:
an APFC boost chip U1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a first inductor L1, a first diode D1, a second diode D2 and an electrolytic capacitor EC 1;
a common junction point among the anode of the first diode D1, the first end of the first capacitor C1, the first end of the first inductor L1 and the first end of the first resistor R1 is used as the first end of the power factor correction module 30;
a second end of the first resistor R1 is connected with a first end of the second resistor R2, and a common joint between a second end of the second resistor R2 and a first end of the second capacitor C2 is connected with a power supply terminal VCC of the APFC boosting chip U1;
a common joint between the second end of the first inductor L1 and the anode of the second diode D2 is connected with the DRAIN DRAIN of the internal high-voltage power tube of the APFC boosting chip U1;
a common junction point between the cathode of the first diode D1, the cathode of the second diode D2, and the first end of the third resistor R3 is connected to a common junction point between the second end of the first capacitor C1 and the anode of the electrolytic capacitor EC 1;
the common joint between the second end of the first capacitor C1 and the anode of the electrolytic capacitor EC1 serves as the second end of the power factor correction module 30, and the cathode of the electrolytic capacitor EC1 is grounded;
a second end of the third resistor R3 and a first end of the fourth resistor R4 are connected;
a common junction point between the second end of the fourth resistor R4 and the feedback voltage input end FB of the APFC boosting chip U1 is connected with a common junction point between the first end of the fifth resistor R5 and the first end of the third capacitor C3;
a second end of the fifth resistor R5, a second end of the third capacitor C3 and a ground end GND of the APFC boosting chip U1 are connected to the ground in common;
a common joint between the first end of the sixth resistor R6 and the first end of the seventh resistor R7 is connected with the current sampling end CS of the APFC boosting chip U1;
the second capacitor C2, the sixth resistor R6 and the seventh resistor R7 are connected to the ground in common.
Optionally, the APFC voltage boost chip U1 may adopt a BP2636C isolated high PF non-strobe chip, and is configured to boost the electrical signal rectified by the rectifying and filtering circuit 20, convert the electrical signal into the driving electrical signal of the LED lamp set 40, and provide the driving electrical signal to the subsequent LED lamp set, so as to improve the power factor, achieve low harmonic, and solve the problem of LED lighting strobe.
Optionally, as shown in fig. 3, the LED lamp set 40 may further include:
a constant current driving chip 41 and an LED string 42;
the second end of the power factor correction module 30 is connected to the first end of the LED lamp string 42 and the first end of the constant current driving chip 41, respectively, and the second end of the LED lamp string 42 is grounded;
the second end of the constant current driving chip 41 is connected with the control signal output end of the internet of things module 10;
the third end of the constant current driving chip 41 is connected with the third end of the LED string 42.
Optionally, the LED string 42 includes a plurality of LED lamps connected in series. The constant current driving chip 41 may adopt a high-precision step-down LED constant current driving chip supporting PWM input dimming, and has a PWM end, and the PWM end is used as a second end of the constant current driving chip 41 and connected to the control signal output end of the internet of things module 10.
An embodiment of the present invention further provides an internet of things lighting control system, as shown in fig. 4, the internet of things lighting control system includes an intelligent terminal 200 and the internet of things lighting control device 100 as described above;
the internet of things lighting control device 100 is connected and communicated with the intelligent terminal 200 through an internet of things module. The smart phone 200 includes, but is not limited to, a smart phone, a smart watch, a tablet computer, and the like, and the user may set the reference brightness of the lighting control device 100 of the internet of things on the smart terminal 200. For details, please refer to the description of the above embodiments for the lighting control device 100 of the internet of things, which is not described herein again.
It should be understood that fig. 4 is an internet of things lighting control system provided on the basis of fig. 2, and the internet of things lighting control device 100 therein may be replaced with the internet of things lighting control device provided in the embodiment of fig. 1.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims (4)

1. An thing networking lighting control device, characterized in that includes:
at least one of the Internet of things lamp modules comprises an Internet of things module, and a sensor is arranged on the Internet of things module;
the Internet of things module is used for establishing communication connection with an intelligent terminal, receiving reference brightness sent by the intelligent terminal and detecting the ambient brightness of an illumination area radiated by the Internet of things illumination control device, when the ambient brightness of the illumination area is deviated from the reference brightness, PWM signals are output to the Internet of things lamp module, and the brightness of the Internet of things lamp module is adjusted to be the reference brightness by changing the driving power of an LED lamp set in the Internet of things lamp module;
thing networking lamp module group includes:
the LED lamp comprises a rectification filtering module, a power factor correction module and an LED lamp group;
the input end of the rectification filter module is connected with a power grid, and the output end of the rectification filter module is connected with the first end of the power factor correction module;
the second end of the power factor correction module is connected with the first end of the LED lamp bank;
the second end of the LED lamp group is connected with the control signal output end of the Internet of things module;
the rectification and filtering module is used for receiving alternating current from a power grid and converting the alternating current into direct current; the power factor correction module is used for boosting the direct current output by the rectification filter module and providing the boosted direct current to the LED lamp bank; the LED lamp bank receives the boosted direct current and a control signal output by the Internet of things module, and changes the brightness according to the control signal to achieve the reference brightness;
the power factor correction module includes:
the circuit comprises an APFC boost chip, a first capacitor, a second capacitor, a third capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first inductor, a first diode, a second diode and an electrolytic capacitor;
a common joint point among the anode of the first diode, the first end of the first capacitor, the first end of the first inductor and the first end of the first resistor is used as the first end of the power factor correction module;
the second end of the first resistor is connected with the first end of the second resistor, and a common joint between the second end of the second resistor and the first end of the second capacitor is connected with a power supply end of the APFC boosting chip;
a common joint between the second end of the first inductor and the anode of the second diode is connected with the drain electrode of the internal high-voltage power tube of the APFC boosting chip;
a common junction point among the cathode of the first diode, the cathode of the second diode and the first end of the third resistor is connected with a common junction point between the second end of the first capacitor and the anode of the electrolytic capacitor;
a common joint point between the second end of the first capacitor and the anode of the electrolytic capacitor is used as the second end of the power factor correction module, and the cathode of the electrolytic capacitor is grounded;
the second end of the third resistor is connected with the first end of the fourth resistor;
a common junction point between the second end of the fourth resistor and the feedback voltage input end of the APFC boosting chip is connected with a common junction point between the first end of the fifth resistor and the first end of the third capacitor;
the second end of the fifth resistor, the second end of the third capacitor and the ground end of the APFC boosting chip are connected to the ground in common;
a common joint between the first end of the sixth resistor and the first end of the seventh resistor is connected with the current sampling end of the APFC boost chip;
the second capacitor, the sixth resistor and the seventh resistor are connected to the ground in common;
the LED lamp group comprises:
the LED driving circuit comprises a constant current driving chip and an LED lamp string; the constant current driving chip adopts a high-precision voltage reduction type LED constant current driving chip supporting PWM input dimming;
the second end of the power factor correction module is respectively connected with the first end of the LED lamp string and the first end of the constant current driving chip, and the second end of the LED lamp string is grounded;
the second end of the constant current driving chip is connected with the control signal output end of the Internet of things module;
the third end of the constant current driving chip is connected with the third end of the LED lamp string;
the APFC boost chip U1 adopts an isolated high-PF non-strobe chip of a BP2636C model;
thing networking lamp module group still includes:
a power supply module;
the input end of the power supply module is connected with the second end of the power factor correction module;
the output end of the power supply module is connected with the power input end of the Internet of things module;
the Internet of things module comprises a control signal output end, and the control signal output end is connected with the LED lamp set of the Internet of things lamp module;
the power supply module is used for receiving boosted direct current output by the power factor correction module and providing electric energy for the Internet of things module according to the boosted direct current;
the Internet of things module is used for establishing communication connection with an intelligent terminal, receiving the reference brightness sent by the intelligent terminal and detecting the ambient brightness of an illumination area radiated by the Internet of things illumination control device, and when the ambient brightness of the illumination area is deviated from the reference brightness, outputting a PWM (pulse width modulation) signal to the Internet of things lamp module through the control signal output end so as to adjust the brightness of the Internet of things lamp module to be the reference brightness;
the sensors on the Internet of things modules are arranged in the illumination areas radiated by the corresponding Internet of things lamp modules and used for detecting the ambient brightness of the illumination areas radiated by the corresponding Internet of things lamp modules;
the Internet of things module comprises a plurality of control signal output ends; each control signal output end is connected with the LED lamp set of one Internet of things lamp module.
2. The lighting control device of the internet of things of claim 1, wherein the sensor on the internet of things module is arranged outdoors or indoors near a window for monitoring the change of the ambient brightness.
3. The lighting control device of the internet of things as claimed in any one of claims 1 to 2, wherein the internet of things module comprises one or more of a bluetooth module, a ZigBee module, a WiFi module, an infrared communication module, a 2G/3G internet of things card, and an ultrasonic communication module.
4. An Internet of things lighting control system, characterized by comprising an intelligent terminal, the Internet of things lighting control device as claimed in any one of claims 1 to 3;
the Internet of things lighting control device is communicated with the intelligent terminal through an Internet of things module.
CN202110342468.9A 2021-03-30 2021-03-30 Thing networking lighting control device and system Active CN112804794B (en)

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