CN112702819A - Single-lamp controller of street lamp, street lamp and control method - Google Patents
Single-lamp controller of street lamp, street lamp and control method Download PDFInfo
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- CN112702819A CN112702819A CN202011636074.6A CN202011636074A CN112702819A CN 112702819 A CN112702819 A CN 112702819A CN 202011636074 A CN202011636074 A CN 202011636074A CN 112702819 A CN112702819 A CN 112702819A
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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
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
- H05B45/12—Controlling the intensity of the light using optical feedback
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
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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
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
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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
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
- H05B47/13—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using passive infrared detectors
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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 invention relates to the technical field of intelligent illumination, and provides a street lamp single lamp controller, a street lamp and a control method, wherein the street lamp single lamp controller comprises: the lighting device comprises a lighting control module, a human body signal acquisition module, a main control module and a driving module, wherein the signal output ends of the lighting control module and the human body signal acquisition module are respectively connected with a first signal input end and a second signal input end of the main control module, the driving module is connected with the signal output end of the main control module, and the signal output end of the driving module is connected to a light source; the driving module comprises a power supply control unit, the lighting control module generates a lighting control signal according to a preset condition, the lighting control signal is converted into a power supply control signal by the main control module and then transmitted to the power supply control unit, and the power supply control unit controls the light source to be lit at a first preset brightness according to the power supply control signal. The invention reduces a large amount of waste of electric energy by different brightness control modes of people and no people.
Description
Technical Field
The invention relates to the technical field of intelligent illumination, in particular to a street lamp single lamp controller, a street lamp and a control method.
Background
With the development of economy, infrastructure construction has also been well developed. In the range of human activities, a large number of street lamps have been built to allow human activities to be performed at night.
Along with the laying of a large amount of street lamps, street lamp controller also is in street lighting, square illumination, places such as park illumination have obtained the wide application, and the lighting methods of street lamp is usually that the fixed time is opened and is closed, and the time of evening is opened, closes daytime, lacks the intelligent control of adjusting illuminance as required, and in some remote highway sections or night public places that personnel's activity is less, no matter someone can light the street lamp, under the unmanned circumstances, can cause very big waste of electric energy.
Disclosure of Invention
The embodiment of the invention provides a single-lamp controller of a street lamp and a control method, aiming at solving the problem of electric energy waste caused by large-area lighting of the street lamp.
In a first aspect, an embodiment of the present invention provides a street lamp controller, including: a lighting control module, a human body signal acquisition module, a main control module and a driving module, wherein,
the signal output ends of the lighting control module and the human body signal acquisition module are respectively connected with the first signal input end and the second signal input end of the main control module, the driving module is connected with the signal output end of the main control module, and the signal output end of the driving module is connected to the light source;
the driving module comprises a power supply control unit, the lighting control module generates a lighting control signal according to a preset condition, converts the lighting control signal into a power supply control signal through the main control module and transmits the power supply control signal to the power supply control unit, and the power supply control unit controls the light source to be lit at a first preset brightness according to the power supply control signal;
the driving module further comprises a dimming unit, the human body signal acquisition module is used for acquiring a human body signal within a preset range, converting the human body signal into a dimming signal through the main control module and transmitting the dimming signal to the dimming unit, and the dimming unit adjusts the brightness of the light source to a second preset brightness according to the dimming signal;
wherein the first preset brightness is lower than the second preset brightness.
Preferably, the lighting control module is a photosensitive sensing module, the photosensitive sensing module is used for collecting ambient light brightness information, if the ambient light brightness information is lower than a preset threshold value, the main control module converts the ambient light brightness information to generate a power control signal and transmits the power control signal to the power control unit, and the power control unit controls the light source to be lit at the first preset brightness.
Preferably, the photosensitive sensing module includes: the output end of the first signal amplifier is connected with the first signal input end of the main control module;
the first signal amplifier includes: the input end of the third operational amplifier circuit is connected with the output end of the photosensitive sensor, and the output end of the fourth operational amplifier circuit is connected with the first signal input end of the main control module;
the third operational amplifier circuit includes: a third operational amplifier, a fifth resistor connected to the output end of the third operational amplifier and connected to the inverting input end of the third operational amplifier,
the fourth operational circuit includes: a fourth operational amplifier, a sixth resistor connected with the output end of the fourth operational amplifier, and a seventh resistor connected in series with the sixth resistor, wherein the output ends of the sixth resistor and the seventh resistor are connected to the inverting input end of the fourth operational amplifier,
the output end of the third operational amplifier is connected with an eighth resistor in series and is connected to the non-inverting input end of the fourth operational amplifier.
Preferably, the human body signal acquisition module includes: the output end of the second signal amplifier is connected with a second signal input end of the main control module;
the second signal amplifier includes: the first operational amplifier circuit is connected with the output end of the infrared pyroelectric sensor, and the second operational amplifier circuit is connected with the output end of the first operational amplifier circuit;
the first operational amplifier circuit comprises: the infrared pyroelectric infrared sensor comprises a first operational amplifier, a first resistor connected with the output end of the first operational amplifier, a second resistor connected with the first resistor in series, and a first capacitor connected with the first resistor in parallel, wherein the output ends of the first resistor, the second resistor and the first capacitor are connected to the inverted input end of the first operational amplifier, and the non-inverted input end of the first operational amplifier is connected with the infrared pyroelectric infrared sensor;
the second operational amplifier circuit comprises: the output ends of the fourth resistor and the second capacitor are connected to the inverting input end of the second operational amplifier, and the output end of the second operational amplifier is connected to the main control module;
and a filter circuit formed by a third resistor and a third capacitor is also arranged between the output end of the first operational amplifier and the non-inverting input end of the second operational amplifier.
The invention also provides a street lamp, which comprises a light source and the street lamp single lamp controller, wherein the light source is connected with the street lamp single lamp controller.
The invention also provides a street lamp single lamp control method, which comprises the following steps:
illuminating the light source at a first preset brightness when a preset condition is met;
detecting whether a human body signal exists in a preset range;
if the human body signal is detected to exist, generating a dimming signal;
adjusting the brightness of the light source to a second preset brightness according to the dimming signal;
wherein the first preset brightness is lower than the second preset brightness.
Preferably, the preset condition is that when the ambient light brightness information is lower than a preset threshold, the method further includes the steps of:
acquiring ambient light brightness information;
generating a power supply control signal according to the ambient light brightness information;
and lighting a light source according to the first preset brightness according to the power supply control signal.
Preferably, the obtaining of the ambient light brightness information is obtained by a photosensitive sensor.
Preferably, the detection of the human body signal is performed by detecting the surrounding environment of the street lamp through an infrared pyroelectric sensor.
Preferably, the method further comprises the following steps:
when no human body signal is detected within a preset time period;
outputting a second dimming signal;
and adjusting the brightness of the light source to the first preset brightness according to the second dimming signal.
In the embodiment of the invention, the single street lamp controller is provided, when a preset condition is reached, the light source of the street lamp is lightened at a first preset brightness, meanwhile, the human body signal acquisition module is utilized to detect whether a person enters the preset area or not in the preset area, and when the person is detected to enter the preset area, the light source is lightened at a second preset brightness. Because the light source is lightened through the lower first preset brightness when no person moves, the surrounding environment is ensured not to be too black, the second preset brightness which can be adjusted to be brighter when the person moves is ensured, the enough brightness is ensured when the person moves, and a large amount of waste of electric energy is reduced through different brightness control modes of people and no person. Especially, most street lamp setting areas have no personnel activities at night, and the street lamps are set to be first preset brightness, so that a large amount of energy can be saved, and electric energy waste is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a module of a single-lamp controller of a street lamp according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a module of a street lamp according to an embodiment of the present invention;
fig. 3 is a flowchart of a single-lamp control method for a street lamp according to an embodiment of the present invention;
FIG. 4 is a schematic circuit diagram of a second signal amplifier provided by an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a first signal amplifier according to an embodiment of the present invention.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example 1
Referring to fig. 1, fig. 1 is a schematic structural diagram of a street lamp single-lamp controller according to an embodiment of the present invention, including: light control module 30, human signal acquisition module 40, host system 10 and drive module 20, wherein, light control module 30, human signal acquisition module 40's signal output part respectively with host system 10's first signal input part, second signal input part connect, drive module 20 with host system 10's signal output part connects, drive module 20's signal output part is connected to light source 50 for the drive light source lights or adjusts luminance.
In this embodiment, the driving module 20 includes a power control unit 21, the lighting control module 30 generates a lighting control signal according to a preset condition, converts the lighting control signal into a power control signal recognizable by the driving module 20 through the main control module 10, and transmits the power control signal to the power control unit 21, and the power control unit 21 controls the light source 50 to light at a first preset brightness according to the power control signal.
In this embodiment, the driving module 20 further includes a dimming unit 22, the human body signal collecting module 40 is configured to collect a human body signal within a preset range, convert the human body signal into a dimming signal through the main control module 10, and transmit the dimming signal to the dimming unit 22, and the dimming unit 22 adjusts the brightness of the light source 50 to a second preset brightness according to the dimming signal.
In this embodiment, the first preset brightness is lower than the second preset brightness. The first preset brightness belongs to lower brightness and can be set according to actual conditions, and when no personnel move, the first preset brightness ensures that the surrounding environment has a certain illumination state and is not completely in the dark. The second predetermined brightness is a higher brightness, for example, comparable to the usual street light brightness, to ensure that sufficient illumination is provided when a person is active.
In this embodiment, the light source 50 may be an LED light source, and the driving module 20 is correspondingly an LED driving module.
In this embodiment, the lighting control module 30 is a photosensitive sensing module, the photosensitive sensing module is configured to collect ambient light brightness information, if the ambient light brightness information is lower than a preset threshold, the main control module 10 converts the ambient light brightness information to generate a power control signal and transmits the power control signal to the power control unit 21, and the power control unit 21 controls the light source 50 to be lit at the first preset brightness.
Specifically, the photosensitive sensing module may include: the photosensitive sensor 31 and the first signal amplifier 32 are connected to a signal output end of the photosensitive sensor 31, and an output end of the first signal amplifier 32 is connected to a first signal input end of the main control module 10. The light sensor 31 detects the brightness of the environment where the street lamp is located, when the brightness is lower than a preset threshold, the brightness information is amplified by the first signal amplifier 32 and is output to the main control module 10, the main control module 10 converts the brightness information into a dimming signal recognizable by the dimming unit 22, and the dimming unit 22 outputs a driving signal to drive the light source 50 to adjust the brightness.
In the present embodiment, as shown in fig. 5, the first signal amplifier 32 includes: a third operational amplifier circuit 321 and a fourth operational amplifier circuit 322 connected to an output end of the third operational amplifier circuit 321, wherein an input end of the third operational amplifier circuit 321 is connected to an output end of the photosensitive sensor 31, and an output end of the fourth operational amplifier circuit 322 is connected to a first signal input end of the main control module 10; the third operational amplifier circuit 321 includes: a third op amp 3211, a fifth resistor R19 connected to the output terminal of the third op amp 3211 and connected to the inverting input terminal of the third op amp 3211, and the fourth op amp 322 includes: a fourth operational amplifier 3222, a sixth resistor R24 connected to an output terminal of the fourth operational amplifier 3222, and a seventh resistor R25 connected in series with the sixth resistor R24, wherein output terminals of the sixth resistor R24 and the seventh resistor R25 are connected to an inverting input terminal of the fourth operational amplifier 3222, and an output terminal of the third operational amplifier 3211 is connected in series with an eighth resistor R22 and is connected to a non-inverting input terminal of the fourth operational amplifier 3222.
As an embodiment, the lighting control module 30 may be a clock control module, and the light source 50 is controlled to be lighted at the first preset brightness according to a preset clock. The human body signal detection module 40 detects the surrounding environment, and outputs a dimming signal to adjust the light source 50 to be turned on at a second preset brightness when the human body signal is detected.
In this embodiment, the human body signal collecting module includes: the infrared pyroelectric sensor 41 and the second signal amplifier 42 are connected with the signal output end of the infrared pyroelectric sensor 41, and the output end of the second signal amplifier 42 is connected with the second signal input end of the main control module 10. When the infrared pyroelectric sensor 41 detects a human body signal, the signal is amplified by the second signal amplifier 42 and output to the main control module 10, the main control module 10 converts the signal into a dimming signal recognizable by the dimming unit 22, and the dimming unit 22 drives the light source 50 to light at a second preset brightness according to the dimming signal.
As shown in fig. 4, the second signal amplifier 42 includes: a first operational amplifier circuit 421 connected to an output terminal of the infrared pyroelectric sensor 41, and a second operational amplifier circuit 422 connected to an output terminal of the first operational amplifier circuit 421;
the first operational amplifier circuit 421 includes: the infrared pyroelectric infrared sensor comprises a first operational amplifier 4211, a first resistor R1 and a second resistor R2 which are connected with the output end of the first operational amplifier 4211, and a first capacitor C2 which is connected with the first resistor R1 in parallel, wherein the output ends of the first resistor R1, the second resistor R2 and the first capacitor C2 are connected with the inverted input end of the first operational amplifier 4211, and the non-inverted input end of the first operational amplifier 4211 is connected with the infrared pyroelectric infrared sensor 41;
the second operational amplifier circuit 422 includes: a second operational amplifier 4222 with a non-inverting input end connected with an output end of the first operational amplifier 4211, a fourth resistor R6 connected with an output end of the second operational amplifier 4222, and a second capacitor C7 connected in parallel with the fourth resistor R6, wherein output ends of the fourth resistor R6 and the second capacitor C7 are connected to an inverting input end of the second operational amplifier 4222, and an output end of the second operational amplifier 4222 is connected to the main control module (i.e., MCU);
a third resistor R3 and a third capacitor C3 are further disposed between the output terminal of the first operational amplifier 4211 and the non-inverting input terminal of the second operational amplifier 4222 to form a filter circuit.
Of course, in this embodiment, the human body signal collecting module 40 may also be a human body proximity sensor, an ultrasonic sensor, an infrared camera, or the like. In the embodiment, an infrared pyroelectric sensor is adopted for detection, the infrared central wavelength of human body radiation is 9-10-um, the wavelength sensitivity of the infrared pyroelectric sensor is in the range of 0.2-20-um, a human body signal (human body infrared radiation) can be detected through the infrared pyroelectric sensor, the detected and received human body infrared radiation is converted into a weak voltage signal, and the weak voltage signal is amplified and output through a second signal amplifier 42.
The main control module 10 may include a main control chip (IC), such as a single chip, which is configured to convert signals of the lighting control module 30 and the human body signal collecting module 40 and output a driving control signal recognizable by the driving module 20.
In the embodiment of the invention, by providing the single street lamp controller, when a preset condition is reached (for example, when the lighting time is reached or the brightness is lower than a preset threshold), the light source of the street lamp is lighted at a first preset brightness, meanwhile, the human body signal acquisition module is utilized to detect whether a person enters the preset area in the preset area, and when the person enters the preset area, the light source is lighted at a second preset brightness. Because the light source is lightened through the lower first preset brightness when no person moves, the surrounding environment is ensured not to be too black, the second preset brightness which can be adjusted to be brighter when the person moves is ensured, the enough brightness is ensured when the person moves, and a large amount of waste of electric energy is reduced through different brightness control modes of people and no person. Especially, most street lamp setting areas have no personnel activities at night, and the street lamps are set to be first preset brightness, so that a large amount of energy can be saved, and electric energy waste is avoided.
Example 2
Referring to fig. 2, fig. 2 is a schematic block structure diagram of a street lamp according to an embodiment of the present invention, where the street lamp 100 includes a light source 50 and a street lamp single-lamp controller 1, and the light source 50 is connected to the street lamp single-lamp controller 1.
Wherein, street lamp single-lamp controller 1 includes: light control module 30, human signal acquisition module 40, host system 10 and drive module 20, wherein, light control module 30, human signal acquisition module 40's signal output part respectively with host system 10's first signal input part, second signal input part connect, drive module 20 with host system 10's signal output part connects, drive module 20's signal output part is connected to light source 50 for the drive light source lights or adjusts luminance.
In this embodiment, the driving module 20 includes a power control unit 21, the lighting control module 30 generates a lighting control signal according to a preset condition, converts the lighting control signal into a power control signal recognizable by the driving module 20 through the main control module 10, and transmits the power control signal to the power control unit 21, and the power control unit 21 controls the light source 50 to light at a first preset brightness according to the power control signal.
In this embodiment, the driving module 20 further includes a dimming unit 22, the human body signal collecting module 40 is configured to collect a human body signal within a preset range, convert the human body signal into a dimming signal through the main control module 10, and transmit the dimming signal to the dimming unit 22, and the dimming unit 22 adjusts the brightness of the light source 50 to a second preset brightness according to the dimming signal.
In this embodiment, the first preset brightness is lower than the second preset brightness. The first preset brightness belongs to lower brightness and can be set according to actual conditions, and when no personnel move, the first preset brightness ensures that the surrounding environment has a certain illumination state and is not completely in the dark. The second predetermined brightness is a higher brightness, for example, comparable to the usual street light brightness, to ensure that sufficient illumination is provided when a person is active.
In this embodiment, the light source 50 may be an LED light source, and the driving module 20 is correspondingly an LED driving module.
In this embodiment, the lighting control module 30 is a photosensitive sensing module, the photosensitive sensing module is configured to collect ambient light brightness information, if the ambient light brightness information is lower than a preset threshold, the main control module 10 converts the ambient light brightness information to generate a power control signal and transmits the power control signal to the power control unit 21, and the power control unit 21 controls the light source 50 to be lit at the first preset brightness.
Specifically, the photosensitive sensing module may include: the photosensitive sensor 31 and the first signal amplifier 32 are connected to a signal output end of the photosensitive sensor 31, and an output end of the first signal amplifier 32 is connected to a first signal input end of the main control module 10. The light sensor 31 detects the brightness of the environment where the street lamp is located, when the brightness is lower than a preset threshold, the brightness information is amplified by the first signal amplifier 32 and is output to the main control module 10, the main control module 10 converts the brightness information into a dimming signal recognizable by the dimming unit 22, and the dimming unit 22 outputs a driving signal to drive the light source 50 to adjust the brightness.
As an embodiment, the lighting control module 30 may be a clock control module, and the light source 50 is controlled to be lighted at the first preset brightness according to a preset clock. The human body signal detection module 40 detects the surrounding environment, and outputs a dimming signal to adjust the light source 50 to be turned on at a second preset brightness when the human body signal is detected.
In this embodiment, the human body signal collecting module includes: the infrared pyroelectric sensor 41 and the second signal amplifier 42 are connected with the signal output end of the infrared pyroelectric sensor 41, and the output end of the second signal amplifier 42 is connected with the second signal input end of the main control module 10. When the infrared pyroelectric sensor 41 detects a human body signal, the signal is amplified by the second signal amplifier 42 and output to the main control module 10, the main control module 10 converts the signal into a dimming signal recognizable by the dimming unit 22, and the dimming unit 22 drives the light source 50 to light at a second preset brightness according to the dimming signal.
Of course, in this embodiment, the human body signal collecting module 40 may also be a human body proximity sensor, an ultrasonic sensor, an infrared camera, or the like. In the embodiment, an infrared pyroelectric sensor is adopted for detection, the infrared central wavelength of human body radiation is 9-10-um, the wavelength sensitivity of the infrared pyroelectric sensor is in the range of 0.2-20-um, a human body signal (human body infrared radiation) can be detected through the infrared pyroelectric sensor, the detected and received human body infrared radiation is converted into a weak voltage signal, and the weak voltage signal is amplified and output through a second signal amplifier 42.
The main control module 10 may include a main control chip (IC) for converting signals of the lighting control module 30 and the human body signal collecting module 40 and outputting a driving control signal recognizable by the driving module 20.
As an optional implementation manner of this embodiment, a street lamp in an area may be provided with the single-lamp controller of the street lamp in this embodiment at an entrance end and a signal sending module to send a dimming signal to other street lamps in the area. And other street lamps carry out dimming according to the received dimming signal. The inlet and outlet end described in this embodiment is not an inlet and outlet end of a road section, but refers to a detection end of a route or an area. Both the inlet and outlet ends may be detection ends. In this embodiment, the other street lamps may perform dimming according to the dimming signal by performing time-delay adjustment to the second preset brightness according to the setting position.
In the embodiment of the invention, by providing a street lamp, when a preset condition is reached (for example, when the lighting time is reached or the brightness is lower than a preset threshold), a light source of the street lamp is lighted with a first preset brightness, meanwhile, a human body signal acquisition module is used for detecting whether a person enters a preset area, and when the person is detected to enter the preset area, the light source is lighted with a second preset brightness. Because the light source is lightened through the lower first preset brightness when no person moves, the surrounding environment is ensured not to be too black, the second preset brightness which can be adjusted to be brighter when the person moves is ensured, the enough brightness is ensured when the person moves, and a large amount of waste of electric energy is reduced through different brightness control modes of people and no person. Especially, most street lamp setting areas have no personnel activities at night, and the street lamps are set to be first preset brightness, so that a large amount of energy can be saved, and electric energy waste is avoided.
Example 3
Referring to fig. 3, fig. 3 is a flowchart of a method for controlling a single street lamp according to an embodiment of the present invention. The street lamp single-lamp control method of the embodiment is used for controlling the lighting of the street lamp and adjusting the brightness of the street lamp.
In order to facilitate the description of the control method of the present embodiment with reference to fig. 1 and fig. 2, a hardware system is provided to assist in the description of the control method of the present embodiment (refer to embodiment 1 and embodiment 2), but the method provided by the present embodiment is not limited to the hardware system shown in fig. 1 and fig. 2.
With reference to embodiment 1 and embodiment 2, the method comprises the following steps:
and S1, lighting the light source with a first preset brightness when the preset condition is met.
In this step, the lighting control module 30 controls the street lamp light source to be lighted. The preset condition of the lighting control module 30 may be a clock, may be ambient brightness, or may be based on manual control.
Taking a clock as an example, the time for turning on the street lamp (namely, the preset condition) is set manually, and when the time for turning on the street lamp reaches, the clock control module outputs a control signal to light the light source.
Taking the ambient brightness as an example of a preset condition, the photosensitive sensing module (the lighting control module 30) may be configured to collect ambient light brightness information, if the ambient light brightness information is lower than a preset threshold, the main control module 10 converts the ambient light brightness information to generate a power control signal and transmits the power control signal to the power control unit 21, and the power control unit 21 controls the light source 50 to be lit at the first preset brightness.
And S2, detecting whether a human body signal exists in a preset range.
In this step, the environment within the preset detection range can be detected by the human body signal acquisition module 40, when the human body signal is detected, the human body signal acquisition module 40 can output a detection signal, and the detection signal is output in an electric signal form. In this embodiment, the preset range may be a range in which detection is performed by arranging the human body signal collection module 40 based on the effective detection distance of the human body signal collection module 40, or a detection signal intensity value set based on the effective detection distance, or based on the effective detection distance.
And S3, if the human body signal is detected to exist, generating a first dimming signal.
When the human body signal is collected by the human body signal collecting module 40, a detection signal is output to the main control module 10, and the main control module 10 converts the detection signal into a dimming signal recognizable by the dimming unit 22 of the driving module 20.
And S4, adjusting the brightness of the light source to a second preset brightness according to the first dimming signal.
In this step, after the driving module 20 receives the dimming signal, the dimming unit 22 adjusts the brightness of the light source, so that the brightness of the light source 50 is adjusted to the second preset brightness.
In this embodiment, the first predetermined brightness is lower than the second predetermined brightness. The first preset brightness is used for providing basic illumination for the environment, so that the ambient environment is not too dark, and the second preset brightness is adjusted to be the brightness enough for the personnel to move according to the actual condition.
In the embodiment, the detection of the human body signal is to detect the surrounding environment of the street lamp through an infrared pyroelectric sensor. Specifically, as shown in fig. 1 and 2, the human body signal collecting module may include: the infrared pyroelectric sensor 41 and the second signal amplifier 42 are connected with the signal output end of the infrared pyroelectric sensor 41, and the output end of the second signal amplifier 42 is connected with the second signal input end of the main control module 10. When the infrared pyroelectric sensor 41 detects a human body signal, the signal is amplified by the second signal amplifier 42 and output to the main control module 10, the main control module 10 converts the signal into a dimming signal recognizable by the dimming unit 22, and the dimming unit 22 drives the light source 50 to light at a second preset brightness according to the dimming signal.
In this embodiment, the method further comprises the steps of:
and S5, outputting a second dimming signal when no human body signal is detected in a preset time period, and adjusting the brightness of the light source to the first preset brightness according to the second dimming signal.
Specifically, after the light source is adjusted to the second preset brightness, in a certain preset time period, when the human body detection module cannot detect the human body signal again, a detection signal is fed back to the main control module 10, the main control module 10 converts the fed-back detection signal into a second dimming signal recognizable by the dimming unit, and the brightness is adjusted to the first preset brightness.
Specifically, after the human body signal is detected, the light source adjusts second preset brightness so that the person can move under enough illumination, human body signal detection can be performed on the surrounding environment once at the end node of time within the preset time period, and if the human body signal is not detected, a second dimming signal is output. Or, detecting for multiple times within a preset time period, and outputting the second dimming signal if the number of times that the human body signal is not detected exceeds the preset number of times. The output of the second dimming signal can be delayed output or real-time output.
Therefore, after the personnel leave the surrounding environment of the street lamp, the street lamp can reduce the brightness to the first preset brightness again, the low power consumption state is kept, and the electric energy resource is saved.
In the embodiment of the invention, when the preset condition is reached, the light source of the street lamp is lightened by the first preset brightness, meanwhile, the human body signal acquisition module is utilized to detect whether a person enters the preset area or not in the preset area, and when the person is detected to enter the preset area, the light source is lightened by the second preset brightness. Because the light source is lightened through the lower first preset brightness when no person moves, the surrounding environment is ensured not to be too black, the second preset brightness which can be adjusted to be brighter when the person moves is ensured, the enough brightness is ensured when the person moves, and a large amount of waste of electric energy is reduced through different brightness control modes of people and no person. Especially, most street lamp setting areas have no personnel activities at night, and the street lamps are set to be first preset brightness, so that a large amount of energy can be saved, and electric energy waste is avoided.
Where the connections described above are electrical connections, the terms "comprising" and "having," and any variations thereof, in the description and claims of this application and the accompanying drawings are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (10)
1. A street lamp single lamp controller, comprising: a lighting control module, a human body signal acquisition module, a main control module and a driving module, wherein,
the signal output ends of the lighting control module and the human body signal acquisition module are respectively connected with the first signal input end and the second signal input end of the main control module, the driving module is connected with the signal output end of the main control module, and the signal output end of the driving module is connected to the light source;
the driving module comprises a power supply control unit, the lighting control module generates a lighting control signal according to a preset condition, converts the lighting control signal into a power supply control signal through the main control module and transmits the power supply control signal to the power supply control unit, and the power supply control unit controls the light source to be lit at a first preset brightness according to the power supply control signal;
the driving module further comprises a dimming unit, the human body signal acquisition module is used for acquiring a human body signal within a preset range, converting the human body signal into a dimming signal through the main control module and transmitting the dimming signal to the dimming unit, and the dimming unit adjusts the brightness of the light source to a second preset brightness according to the dimming signal;
wherein the first preset brightness is lower than the second preset brightness.
2. The single lamp controller of claim 1, wherein the lighting control module is a photosensitive sensing module, the photosensitive sensing module is configured to collect ambient light brightness information, if the ambient light brightness information is lower than a preset threshold, the main control module converts the ambient light brightness information to generate a power control signal and transmits the power control signal to the power control unit, and the power control unit controls the light source to be lit at the first preset brightness.
3. The single lamp controller for street lamps according to claim 2, wherein the photosensitive sensing module comprises: the output end of the first signal amplifier is connected with the first signal input end of the main control module;
the first signal amplifier includes: the input end of the third operational amplifier circuit is connected with the output end of the photosensitive sensor, and the output end of the fourth operational amplifier circuit is connected with the first signal input end of the main control module;
the third operational amplifier circuit includes: a third operational amplifier, a fifth resistor connected to the output end of the third operational amplifier and connected to the inverting input end of the third operational amplifier,
the fourth operational circuit includes: a fourth operational amplifier, a sixth resistor connected with the output end of the fourth operational amplifier, and a seventh resistor connected in series with the sixth resistor, wherein the output ends of the sixth resistor and the seventh resistor are connected to the inverting input end of the fourth operational amplifier,
the output end of the third operational amplifier is connected with an eighth resistor in series and is connected to the non-inverting input end of the fourth operational amplifier.
4. The single street lamp controller according to claim 1, wherein the human body signal collecting module comprises: the output end of the second signal amplifier is connected with a second signal input end of the main control module;
the second signal amplifier includes: the first operational amplifier circuit is connected with the output end of the infrared pyroelectric sensor, and the second operational amplifier circuit is connected with the output end of the first operational amplifier circuit;
the first operational amplifier circuit comprises: the infrared pyroelectric infrared sensor comprises a first operational amplifier, a first resistor connected with the output end of the first operational amplifier, a second resistor connected with the first resistor in series, and a first capacitor connected with the first resistor in parallel, wherein the output ends of the first resistor, the second resistor and the first capacitor are connected to the inverted input end of the first operational amplifier, and the non-inverted input end of the first operational amplifier is connected with the infrared pyroelectric infrared sensor;
the second operational amplifier circuit comprises: the output ends of the fourth resistor and the second capacitor are connected to the inverting input end of the second operational amplifier, and the output end of the second operational amplifier is connected to the main control module;
and a filter circuit formed by a third resistor and a third capacitor is also arranged between the output end of the first operational amplifier and the non-inverting input end of the second operational amplifier.
5. A street lamp, characterized by comprising a light source and the single lamp controller of the street lamp as claimed in any one of claims 1 to 4, wherein the light source is connected with the single lamp controller of the street lamp.
6. A street lamp single lamp control method is characterized by comprising the following steps:
illuminating the light source at a first preset brightness when a preset condition is met;
detecting whether a human body signal exists in a preset range;
if the human body signal is detected to exist, generating a first dimming signal;
adjusting the brightness of the light source to a second preset brightness according to the first dimming signal;
wherein the first preset brightness is lower than the second preset brightness.
7. The method for controlling a single street lamp according to claim 6, wherein the predetermined condition is that the ambient light brightness information is lower than a predetermined threshold, the method further comprising the steps of:
acquiring ambient light brightness information;
generating a power supply control signal according to the ambient light brightness information;
and lighting a light source according to the first preset brightness according to the power supply control signal.
8. The method as claimed in claim 7, wherein the obtaining of the ambient light brightness information is obtained by a photosensitive sensor.
9. The single-lamp control method of claim 6, wherein the detecting the human body signal is detecting the surrounding environment of the street lamp by an infrared pyroelectric sensor.
10. The single street lamp control method according to claim 6, further comprising the steps of:
when no human body signal is detected within a preset time period;
outputting a second dimming signal;
and adjusting the brightness of the light source to the first preset brightness according to the second dimming signal.
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