CN116390295A - Dimming control circuit, dimming control method and lighting system - Google Patents
Dimming control circuit, dimming control method and lighting system Download PDFInfo
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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
- 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
- H05B47/175—Controlling the light source by remote control
- H05B47/19—Controlling the light source by remote control via wireless transmission
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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
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Abstract
The application discloses a dimming control circuit, a dimming control method and a lighting system, and relates to the technical field of lighting. The dimming control circuit includes: the signal output circuit is used for outputting a first illumination control signal according to illumination requirements in a preset field range; and the dimming module is used for receiving the second illumination control signal, outputting a first dimming instruction through the first output end based on the first illumination control signal, and outputting a second dimming instruction through the second output end based on the second illumination control signal. The first output end and the second output end of the dimming module are set to be in a reverse high-resistance state, so that the on-site automatic dimming mode and the remote dimming mode are not interfered with each other, the driving circuit can control the luminous brightness of the lighting equipment based on the first dimming instruction and the second dimming instruction, and therefore the lighting requirement of the on-site lamp and/or the lighting requirement of the remote video monitoring site are met, and on-demand lighting and energy conservation and environmental protection are realized.
Description
Technical Field
The application belongs to the technical field of illumination, and particularly relates to a dimming control circuit, a dimming control method and an illumination system.
Background
In underground lighting sites such as the coal industry, there is a need for lighting with lights on site as well as a need for lighting at remote video monitoring sites. Therefore, how to meet the lighting requirements of the field lights and/or the lighting requirements of the remote video surveillance field to achieve on-demand lighting and energy conservation and environmental protection is a subject of investigation by those skilled in the art.
Disclosure of Invention
The application provides a dimming control circuit, a dimming control method and a lighting system, which are used for meeting the lighting requirement of a spot lamp and/or the lighting requirement of a remote video monitoring spot so as to realize on-demand lighting, energy conservation and environmental protection.
A first aspect of an embodiment of the present application provides a dimming control circuit, including:
the signal output circuit is used for outputting a first illumination control signal according to the illumination requirement in the preset field range, and the first illumination control signal is used for reflecting the illumination requirement in the preset field range;
the first input end of the dimming module is connected with the signal output circuit, the second input end of the dimming module is used for receiving a second illumination control signal, the second illumination control signal is used for reflecting the illumination requirement of the remote video monitoring site, the dimming module is used for outputting a first dimming instruction through the first output end based on the first illumination control signal and outputting a second dimming instruction through the second output end based on the second illumination control signal, and the first output end and the second output end of the dimming module are in a reverse high-resistance state;
and the driving circuit is connected with the first output end and the second output end of the dimming module and is used for controlling the luminous brightness of the lighting equipment based on the first dimming instruction and the second dimming instruction.
As an alternative implementation manner of the first aspect, at least one of the first output terminal and the second output terminal of the dimming module is provided with a unidirectional conducting device.
As an optional implementation of the first aspect, the first dimming command comprises a first dimming voltage and the second dimming command comprises a second dimming voltage;
a driving circuit for controlling a light emitting luminance of the lighting device according to a target dimming voltage among the first dimming voltage and the second dimming voltage; the target dimming voltage is the maximum value of the first dimming voltage and the second dimming voltage, or the target dimming voltage is the dimming voltage carried by the dimming instruction with the highest priority in the first dimming instruction and the second dimming instruction; alternatively, in a case where the first dimming command and the second dimming command each indicate to decrease the luminance of the lighting device, the target dimming voltage is a minimum value of the first dimming voltage and the second dimming voltage.
As an optional implementation manner of the first aspect, the dimming control circuit further includes:
the first input end of the selection circuit is connected with the first output end of the dimming module, the second input end of the selection circuit is connected with the second output end of the dimming module, and the output end of the selection circuit is connected with the driving circuit;
the selection circuit is used for outputting a dimming command carrying a target dimming voltage to the driving circuit according to the priorities of the first dimming command and the second dimming command.
As an optional implementation of the first aspect, the first lighting control signal comprises a first lighting requirement or a second lighting requirement, the lighting level of the first lighting requirement being higher than the lighting level of the second lighting requirement, the dimming module comprising:
the first dimming circuit is used for outputting a first voltage based on a first lighting requirement and outputting a second voltage based on a second lighting requirement, wherein the first dimming voltage is a first voltage or a second voltage, and the first voltage is larger than the second voltage;
and the second dimming circuit is used for receiving the second illumination control signal and outputting a second dimming instruction comprising a second dimming voltage based on the second illumination control signal.
As an optional implementation manner of the first aspect, the signal output circuit includes:
the human body induction switch is connected with the first dimming circuit and is used for outputting a first illumination control signal comprising a first illumination requirement when a user is detected in a preset field range and outputting a first illumination control signal comprising a second illumination requirement when the user is not detected in the preset field range, wherein the illumination level of the first illumination requirement is higher than that of the second illumination requirement.
As an optional implementation manner of the first aspect, the dimming control circuit further includes:
the power supply is connected with the driving circuit and the second dimming circuit and used for providing required working voltage for the driving circuit and the second dimming circuit;
and the control device is connected with the power supply and used for controlling the power supply to output a second illumination control signal to the second dimming circuit in a power carrier mode.
As an optional implementation manner of the first aspect, the output terminal of the driving circuit is further connected to a first dimming circuit, the first dimming circuit extracts an operating voltage required by the first dimming circuit from a driving voltage of the driving circuit, the driving voltage is used for controlling the light emitting brightness of the lighting device, and the driving voltage is determined by a dimming voltage carried by the dimming command.
As an optional implementation manner of the first aspect, the second lighting control signal is from a remote control end, and the remote control end is in wireless communication connection with the dimming module, and the dimming module is configured to receive the second lighting control signal from the remote control end through the wireless communication connection.
As an optional implementation manner of the first aspect, the dimming module includes a wireless radio frequency communication module, where the wireless radio frequency communication module is configured to support the dimming module to establish a wireless communication connection with the remote control end.
A second aspect of the embodiments of the present application provides a dimming control method applied to the dimming control circuit provided in the first aspect or the various embodiments of the first aspect, including:
outputting a first illumination control signal according to the illumination requirement in the preset field range, wherein the first illumination control signal is used for reflecting the illumination requirement in the preset field range;
receiving a second illumination control signal, outputting a first dimming instruction based on the first illumination control signal, and outputting a second dimming instruction based on the second illumination control signal, wherein the second illumination control signal is used for reflecting the illumination requirement of a remote video monitoring site;
the lighting brightness of the lighting device is controlled based on the first dimming command and the second dimming command.
A third aspect of the embodiments of the present application provides a lighting system, including a lighting device and a dimming control circuit provided by the above first aspect or various embodiments of the first aspect;
the dimming control circuit is connected with the lighting device and is used for controlling the luminous brightness of the lighting device based on the lighting requirement in the preset field range and the lighting requirement of the remote video monitoring field.
Compared with the prior art, the embodiment of the application has the beneficial effects that:
the signal output circuit outputs a first illumination control signal according to the illumination requirement in the preset field range, wherein the first illumination control signal is used for reflecting the illumination requirement in the preset field range. The dimming module receives a second lighting control signal reflecting a lighting demand of the remote video monitoring site, and outputs a first dimming instruction through the first output terminal based on the first lighting control signal, and outputs a second dimming instruction through the second output terminal based on the second lighting control signal. The first output end and the second output end of the dimming module are set to be in a reverse high-resistance state, so that the on-site automatic dimming mode (first dimming instruction) and the remote dimming mode (second dimming instruction) are not interfered with each other, the driving circuit can control the luminous brightness of the lighting equipment based on the first dimming instruction and the second dimming instruction, and therefore the lighting requirement of the on-site lamp and/or the lighting requirement of the remote video monitoring site are met, and on-demand lighting and energy conservation and environmental protection are realized.
Drawings
Fig. 1 shows a first schematic structure of a dimming control circuit according to an embodiment of the present disclosure;
fig. 2 shows a second schematic structure of the dimming control circuit according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram illustrating a third structure of a dimming control circuit according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram illustrating a fourth configuration of a dimming control circuit according to an embodiment of the present disclosure;
fig. 5 shows a fifth schematic structural diagram of a dimming control circuit according to an embodiment of the present disclosure;
fig. 6 shows a sixth schematic diagram of a dimming control circuit according to an embodiment of the present disclosure;
fig. 7 is a schematic flow chart of a dimming control method according to an embodiment of the present application.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In underground lighting sites such as the coal industry, there is a need for lighting with lights on site as well as a need for lighting at remote video monitoring sites. Therefore, how to meet the lighting requirements of the field lights and/or the lighting requirements of the remote video surveillance field to achieve on-demand lighting and energy conservation and environmental protection is a subject of investigation by those skilled in the art.
In view of this, the embodiment of the application provides a dimming control circuit, a dimming control method and a lighting system, which can realize on-site automatic adjustment of the light-emitting brightness of lighting equipment, realize 'people light, people light dark', and simultaneously can remotely adjust the light-emitting brightness of the lighting equipment, and the on-site automatic dimming mode and the remote dimming mode are not mutually interfered, so that the lighting requirement of on-site lamps and/or the lighting requirement of remote video monitoring sites can be met, and on-demand lighting and energy conservation and environmental protection are realized.
In order to illustrate the technical solutions described in the present application, the following description is made by specific examples.
Fig. 1 shows a first schematic configuration of a dimming control circuit 10 according to an embodiment of the present application, and for convenience of explanation, only the portions related to the embodiment are shown.
As shown in fig. 1, the dimming control circuit 10 includes a driving circuit 40, a signal output circuit 20, and a dimming module 30. The dimming module 30 has a first input terminal 31, a second input terminal 32, a first output terminal 33, and a second output terminal 34, the signal output circuit 20 is connected to the first input terminal 31 of the dimming module 30, the first output terminal 33 and the second output terminal 34 of the dimming module 30 are both connected to the driving circuit 40, and the driving circuit 40 is further connected to the lighting device 50. In addition, the second input 32 of the dimming module 30 is configured to receive a second lighting control signal that is configured to reflect the lighting requirements of the remote video surveillance site.
The signal output circuit 20 is configured to output a first lighting control signal according to a lighting requirement within a preset field range, where the first lighting control signal is configured to reflect the lighting requirement within the preset field range.
The dimming module 30 is configured to output a first dimming command through the first output terminal 33 based on the first lighting control signal, and output a second dimming command through the second output terminal 34 based on the second lighting control signal, where the first output terminal 33 and the second output terminal 34 of the dimming module 30 are both in a reverse high-resistance state.
The driving circuit 40 is connected to the first output terminal 33 and the second output terminal 34 of the dimming module 30, and is configured to control the light emitting brightness of the lighting device 50 based on the first dimming command and the second dimming command.
The present embodiment is not particularly limited as to how to obtain the lighting requirements within the preset field range. For example, the lighting requirement may be set by user, or the signal output circuit 20 may detect the lighting requirement within a predetermined field range by using a detection function provided by itself.
The lighting requirement in the present embodiment reflects the light emission luminance size requirement of the lighting apparatus 50. For example, the light emission luminance level requirement may be expressed by a specific illumination intensity, a percentage of the maximum light emission luminance of the lighting apparatus 50, or other parameters, which are not particularly limited in this embodiment.
In this embodiment, the area of the preset field range is not specifically limited, and a technician may set the area as required. For example, the preset field range is an area that the lighting device 50 can illuminate, or the preset field range is an area whose distance from the signal output circuit 20 is within a preset value range.
The type of the first illumination control signal is not particularly limited in this embodiment. For example, the first lighting control signal is an analog quantity signal or a digital quantity signal.
The present embodiment does not specifically limit how to obtain the lighting requirements of the remote video surveillance site. For example, the lighting requirements may be custom set or may be set according to the type of remote video monitoring device. As one example, different types of remote video monitoring devices are employed to monitor field areas that differ in the requirements of the lighting intensity of the lighting device 50.
The type of the second illumination control signal is not particularly limited in this embodiment. For example, the second illumination control signal is an analog quantity signal or a digital quantity signal.
For example, if the first lighting control signal indicates to increase the lighting intensity of the preset field range, the first dimming command is used to instruct the driving circuit 40 to increase the lighting intensity of the preset field range. Optionally, the first dimming command may further carry a first dimming voltage, so that the driving circuit 40 is convenient for controlling the light emitting brightness of the lighting device 50 according to the first dimming voltage, thereby achieving the purpose of increasing the lighting brightness of the preset field range. Similarly, if the lighting demand of the remote video surveillance site reflected by the second lighting control signal is to increase the lighting brightness, the second dimming command is used to instruct the driving circuit 40 to increase the lighting brightness of the preset site range. Optionally, the second dimming command may further carry a second dimming voltage, so that the driving circuit 40 is convenient for controlling the brightness of the lighting device 50 according to the second dimming voltage, thereby achieving the purpose of increasing the lighting brightness of the preset field range.
In the case where the driving circuit 40 controls the light emission luminance of the illumination apparatus 50 based on the first dimming instruction, it means that the light emission luminance of the illumination apparatus 50 is controlled to preferentially satisfy the illumination demand within the preset field range. In the case where the driving circuit 40 controls the light emission luminance of the lighting apparatus 50 based on the second dimming instruction, it means that the light emission luminance of the lighting apparatus 50 is controlled to satisfy the lighting requirement of the remote video monitoring site. In either case, there is a case where the light emission luminance of the lighting device 50 can simultaneously satisfy the lighting requirements within the preset field range and the lighting requirements of the remote video monitoring field.
For example, in the case where the light emission luminance of the illumination apparatus 50 is greater than or equal to the requirement of the illumination requirement within the preset field range for the luminance, it is considered that the illumination requirement within the preset field range is satisfied; in the case where the light emission luminance of the illumination device 50 is greater than or equal to the luminance requirement of the illumination requirement of the remote video monitoring site, as viewed as satisfying the illumination requirement of the remote video monitoring site, there is a case where the light emission luminance of the illumination device 50 can satisfy both the illumination requirement within the preset site range and the illumination requirement of the remote video monitoring site.
It should be noted that, in this embodiment, the types of the first dimming instruction and the second dimming instruction are not specifically limited, and a technician may set the first dimming instruction and the second dimming instruction as required.
In this embodiment, the first output terminal 33 and the second output terminal 34 of the dimming module 30 are set to be in the reverse high-resistance state, so that the input impedance of the first output terminal 33 and the second output terminal 34 is very large, and thus the on-site automatic dimming mode (the first dimming instruction) and the remote dimming mode (the second dimming instruction) are not interfered with each other, so that the driving circuit 40 can control the light emitting brightness of the lighting device 50 based on the first dimming instruction and the second dimming instruction, thereby meeting the lighting requirement of the on-site lamp and/or the lighting requirement of the remote video monitoring site, and realizing on-demand lighting and energy saving and environmental protection.
Note that, in this embodiment, the structures of the signal output circuit 20, the dimming module 30, and the driving circuit 40 are not particularly limited, and a technician may set the structures as needed.
The present embodiment is not particularly limited as to how to set the first output terminal 33 and the second output terminal 34 of the dimming module 30 to the reverse high-resistance state, and a skilled person may implement the same with corresponding circuits or devices as required.
In another embodiment of the present application, at least one of the first output terminal 33 and the second output terminal 34 of the dimming module 30 is provided with a unidirectional conduction device, such that the first output terminal 33 and/or the second output terminal 34 of the dimming module 30 are in a reverse high-resistance state.
For example, the anode of a unidirectional conducting device is connected to the first output 33 of the dimmer module 30 and the cathode of the unidirectional conducting device is connected to the driver circuit 40. For example, the unidirectional conducting device is a unidirectional transistor.
For example, the anode of a further unidirectional conducting device is connected to the second output 34 of the dimming module 30, and the cathode of the unidirectional conducting device is connected to the driving circuit 40. For example, the unidirectional conducting device is a unidirectional transistor.
The dimming control circuit 10 provided in this embodiment sets the first output terminal 33 and the second output terminal 34 of the dimming module 30 to a reverse high-resistance state through unidirectional conduction devices. It is understood that in the case where the dimming module 30 includes the first dimming circuit 31 and the second dimming circuit 32, the output terminals of the first dimming circuit 31 and/or the second dimming circuit 32 may be connected in series with unidirectional conductive devices, respectively.
It is understood that, in the case that the dimming module 30 includes the first dimming circuit 31 and the second dimming circuit 32, the first input terminal 31 of the dimming module 30 is the input terminal of the first dimming circuit 31, and the first output terminal 33 of the dimming module 30 is the output terminal of the first dimming circuit 31. The second input end 32 of the dimming module 30 is an input end of the second dimming circuit 32, and the second output end 34 of the dimming module 30 is an output end of the second dimming circuit 32.
In one possible implementation of the present application, the first dimming command and the second dimming command have priorities, respectively, and then, in a case that the priorities of the first dimming command and the second dimming command are different, the driving circuit 40 is configured to control the light emitting brightness of the lighting device 50 according to the dimming command with the priority meeting the requirement in the first dimming command and the second dimming command.
For example, the driving circuit 40 is configured to control the light-emitting brightness of the lighting device 50 according to the dimming command with the highest priority among the first dimming command and the second dimming command, and may control the light-emitting brightness of the lighting device 50 according to the dimming command with the lowest priority. For example, the first dimming command instructs to decrease the light emission luminance of the lighting device 50, thereby achieving the purpose of decreasing the light emission luminance within the preset field range. The second dimming command is used to instruct the lighting device 50 to increase or maintain the light intensity of the light to achieve the lighting needs of the remote video surveillance site. The driving circuit 40 may decrease the light emitting luminance of the lighting device 50 according to the first dimming command if the first dimming command has a higher priority than the second dimming command. If the priority of the first dimming command is lower than the priority of the second dimming command, the driving circuit 40 may increase or maintain the light emitting brightness of the lighting device 50 according to the second dimming command.
Alternatively, the first dimming command and the second dimming command may carry information reflecting the command priority, respectively. For example, the first dimming instruction may carry a first indicator. The second dimming instruction may carry a second indicator. The first indicator is used for indicating that the priority of the first dimming instruction is high. The second indicator is used for indicating that the priority of the second dimming instruction is low. For example, the first indicator may be 1 and the second indicator may be 0.
Optionally, the first dimming command includes a first dimming voltage, and the second dimming command includes a second dimming voltage. This facilitates the drive circuit 40 to determine the light emission luminance of the lighting device 50 specifically from the first dimming voltage or the second dimming voltage.
Accordingly, alternatively, in addition to selecting the dimming command according to the priority of the dimming command, the driving circuit 40 may also select an appropriate dimming voltage to control the light emitting luminance of the lighting device 50 according to the magnitude of the dimming voltage carried in the dimming command, for example, the driving circuit 40 is configured to control the light emitting luminance of the lighting device 50 according to a target dimming voltage of the first dimming voltage and the second dimming voltage. The target dimming voltage is the maximum value of the first dimming voltage and the second dimming voltage, or the target dimming voltage is the dimming voltage carried by the dimming instruction with the highest priority in the first dimming instruction and the second dimming instruction; alternatively, in a case where the first dimming command and the second dimming command each indicate to decrease the luminance of the lighting device, the target dimming voltage is a minimum value of the first dimming voltage and the second dimming voltage.
As shown in fig. 2, in another embodiment of the present application, the dimming control circuit 10 further includes a selection circuit 60, the selection circuit 60 is connected to the driving circuit 40, a first input terminal 61 of the selection circuit 60 is connected to the first output terminal 33 of the dimming module 30, and a second input terminal 62 of the selection circuit 60 is connected to the second output terminal 34 of the dimming module 30.
The selection circuit 60 is configured to output a dimming command carrying a target dimming voltage to the driving circuit 40 according to the priorities of the first dimming command and the second dimming command.
In this embodiment, the priority of how to set the first dimming command and the second dimming command is not particularly limited, and a technician may set the priorities as required.
For example, the priorities of the first dimming instruction and the second dimming instruction may be set by a software technique.
For another example, the priorities of the first dimming instruction and the second dimming instruction may be set by hardware technology. Optionally, the first dimming command is a voltage signal, the second dimming command is a voltage signal, and the priorities of the first dimming command and the second dimming command can be set through the circuit. For example, a maximum value of the first dimming signal and the second dimming signal is selected as a target dimming signal by the circuit, and the light emission luminance of the lighting device 50 is controlled according to the selected target dimming signal.
As an alternative implementation of the present embodiment, the selection circuit 60 is an or circuit, selects one of the first dimming command and the second dimming command by logical or operation of the or circuit, and controls the light emission luminance of the lighting device 50 according to the selected command. Optionally, the first dimming command and the second dimming command are both logic signals.
As an alternative implementation of this embodiment, the first dimming command includes a first dimming voltage and the second dimming command includes a second dimming voltage.
The driving circuit 40 is configured to set the maximum value of the first dimming voltage and the second dimming voltage as a target dimming voltage, and to control the light emission luminance of the lighting device 50 based on the target dimming voltage.
For example, the first dimming voltage is equal to 2V, the second dimming voltage is equal to 8V, and 8V may be selected as the target dimming voltage to control the light emitting brightness of the lighting device 50. Alternatively, the target dimming voltage ranges from 0 to 10V, and the corresponding light emitting luminance of the lighting device 50 is 0 to 100% of the maximum light emitting luminance. For example, when the target dimming voltage is 8V, the light emission luminance of the lighting device 50 is 80% of the maximum light emission luminance.
As shown in fig. 3, in another embodiment of the present application, the first lighting control signal includes a first lighting requirement or a second lighting requirement, and the lighting level of the first lighting requirement is higher than the lighting level of the second lighting requirement.
The dimming module 30 includes a first dimming circuit 31 and a second dimming circuit 32, the first dimming circuit 31 is configured to output a first voltage based on a first lighting requirement and to output a second voltage based on a second lighting requirement, the first dimming voltage being the first voltage or the second voltage, the first voltage being greater than the second voltage.
The second dimming circuit 32 is configured to receive the second lighting control signal and output a second dimming command including a second dimming voltage based on the second lighting control signal.
Accordingly, the dimming control circuit 10 provided in the present embodiment can control the light emitting luminance of the lighting device 50 by controlling the driving circuit 40 through the voltage. For example, the light emission luminance of the lighting device 50 may be controlled based on the first dimming voltage or the second dimming voltage.
As an alternative implementation of this embodiment, the signal output circuit 20 includes a body-sensing switch, which is connected to the first dimming circuit 31 and is configured to output a first lighting control signal including a first lighting requirement if a user is detected within a preset field range, and output a first lighting control signal including a second lighting requirement if the user is not detected within the preset field range, where a lighting level of the first lighting requirement is higher than a lighting level of the second lighting requirement.
In this embodiment, the user may refer to a human being, a robot, or other movable machine device.
It should be appreciated that in some embodiments, in the event that a user is present within a preset field range, it is indicated that the lighting device 50 is required to provide field illumination, and in the event that a user is not present within a preset field range, it is indicated that the lighting device 50 is not required to provide field illumination, or that the light emission brightness of the lighting device 50 is required to be reduced, thereby achieving on-demand illumination and energy conservation and environmental protection.
In the present embodiment, in the case where the lighting level of the first lighting requirement is higher than the lighting level of the second lighting requirement, the lighting luminance required for the first lighting requirement may be greater than, equal to, or less than the lighting luminance required for the second lighting requirement, which is not particularly limited.
The embodiment sets the illumination level of the illumination requirement of the condition of detecting the user in the preset field range to be higher than the illumination level of the illumination requirement of the condition of not detecting the user in the preset field range, so that the illumination requirement of the field lamp can be met, and electricity can be saved.
The type of the human body induction switch is not particularly limited in this embodiment. For example, the human body sensing switch is an infrared sensing switch or a microwave sensing switch.
Alternatively, in an underground lighting site such as the coal industry, the human body induction switch is selected as a microwave induction switch. The microwave induction switch has the advantages of strong anti-radio frequency interference capability and no influence of temperature, humidity, light, air flow, dust and the like.
For example, the microwave induction switch can sense a motion signal of a user through the antenna, so as to detect whether the user exists in a preset field range, and correspondingly output a first illumination control signal.
As shown in fig. 4, in another embodiment of the present application, the dimming control circuit 10 includes a power supply 70 and a control device 80, the power supply 70 being connected to the driving circuit 40 and the second dimming circuit 32 for providing a required operating voltage to the driving circuit 40 and the second dimming circuit 32.
The control device 80 is connected to the power supply 70, and is configured to control the power supply 70 to output a second lighting control signal to the second dimming circuit 32 in a power carrier mode. In other words, the second lighting control signal is applied to the power line of the power supply 70 by the power carrier method, and the power supply 70 supplies the required operating voltage to the driving circuit 40 through the power line, and supplies the required operating voltage and the second lighting control signal to the second dimming circuit 32 through the power line.
The present embodiment is not particularly limited in terms of the structure of the control device 80 and the power supply 70. For example, the operating voltage provided by the power supply 70 is alternating current. For another example, the control device 80 is an electronic device such as a host computer, a mobile terminal, or a computer, which is provided with a transmission control signal.
The dimming control circuit 10 provided in this embodiment sends the second lighting control signal in a power carrier mode, so that the laying of communication lines can be reduced, and the dimming control circuit is particularly suitable for underground lighting sites such as coal industry.
As shown in fig. 5, in another embodiment of the present application, the output end of the driving circuit 40 is further connected to the first dimming circuit 31, so as to provide the required operating voltage to the first dimming circuit 31 through the driving voltage provided to the lighting device 50, where the driving voltage is used to control the light emitting brightness of the lighting device 50, and the driving voltage is determined by the dimming voltage carried by the dimming command.
The dimming control circuit 10 provided in this embodiment provides the required operating voltage to the first dimming circuit 31 by driving the voltage, and does not need to configure a power supply for the first dimming circuit 31 additionally, so that implementation cost can be reduced.
As shown in fig. 6, in another embodiment of the present application, the second lighting control signal is from the remote control terminal 90, and the remote control terminal 90 is connected to the dimming module 30 through wireless communication, and the dimming module 30 is configured to receive the second lighting control signal from the remote control terminal 90 through the wireless communication.
The structure of the remote control terminal 90 is not particularly limited in this embodiment. For example, the remote control terminal 90 includes a computer having a wireless communication function, a mobile terminal, and the like.
As an alternative implementation of this embodiment, the dimming module 30 and the remote control 90 each include a wireless communication module. For example, the dimming module 30 includes a wireless radio frequency communication module for supporting the dimming module 30 to establish a wireless communication connection with the remote control terminal 90. For example, the radio frequency communication module is a radio frequency receiving module, and the remote control end 90 includes a radio frequency transmitting module, where the radio frequency receiving module establishes a radio communication connection with the radio frequency transmitting module.
The dimming control circuit 10 provided in this embodiment transmits the second lighting control signal in a wireless communication manner, so that the laying of communication lines can be reduced, and the dimming control circuit is particularly suitable for underground lighting sites such as coal industry.
As an alternative implementation of any of the above embodiments, the driving circuit 40 is configured to control the light emitting luminance of the lighting device 50 based on a dimming command having a highest priority among the first dimming command and the second dimming command.
In this embodiment, how to prioritize is not particularly limited, and the technician may set the priority according to needs. For example, the priority of the lighting demand within the preset field range is set to be higher than the lighting demand of the remote video monitoring field, i.e., the priority of the first dimming command is higher than the priority of the second dimming command. For another example, the priority of the lighting demand of the remote video surveillance site is set to be higher than the lighting demand within the preset site range, i.e., the priority of the second dimming command is higher than the priority of the first dimming command.
In summary, in the dimming control circuit 10 provided in the embodiment of the present application, the signal output circuit 20 outputs the first lighting control signal according to the lighting requirement within the preset field range, the dimming module 30 receives the second lighting control signal for reflecting the lighting requirement of the remote video monitoring field, and the first output end 33 and the second output end 34 of the dimming module 30 are set to the reverse high-resistance state, so that the field automatic dimming mode and the remote dimming mode are not interfered with each other, so that the dimming control circuit 10 can control the lighting brightness of the lighting device 50 according to the first lighting control signal and the second lighting control signal, thereby meeting the lighting requirement of the field lamp and/or the lighting requirement of the remote video monitoring field, and realizing on-demand lighting and energy saving and environmental protection.
As shown in fig. 7, based on the dimming control circuit 10 provided in any of the above embodiments, in another embodiment of the present application, there is further provided a dimming control method, including the following steps:
s101, outputting a first illumination control signal according to illumination requirements in a preset field range, wherein the first illumination control signal is used for reflecting the illumination requirements in the preset field range.
S102, receiving a second illumination control signal, outputting a first dimming instruction based on the first illumination control signal, and outputting a second dimming instruction based on the second illumination control signal, wherein the second illumination control signal is used for reflecting the illumination requirement of the remote video monitoring site.
S103, controlling the light emitting luminance of the lighting device 50 based on the first dimming command and the second dimming command.
The implementation principle of each step in the dimming control method provided in this embodiment may refer to the foregoing description of the embodiment shown in fig. 1 and other embodiments of the related dimming control circuit 10, which is not repeated herein.
The dimming control method provided by the embodiment has the beneficial effects that the on-site automatic dimming mode and the remote dimming mode are not mutually interfered, the illumination requirement of the on-site lamp and/or the illumination requirement of the remote video monitoring site can be met, and the on-demand illumination, energy conservation and environmental protection are realized.
In another embodiment of the present application, there is also provided a lighting system including a lighting device 50 and the dimming control circuit 10 provided in any of the above embodiments.
The dimming control circuit 10 is connected to the lighting device 50, and is configured to control the light emitting brightness of the lighting device 50 based on the lighting requirement within the preset field range and the lighting requirement of the remote video monitoring field, so as to meet the lighting requirement of the field lamp and/or the lighting requirement of the remote video monitoring field, thereby realizing on-demand lighting, energy saving and environmental protection.
As one example, the lighting device 50 includes an LED lamp, and the driving voltage output from the driving circuit 40 is used to control the light emission luminance of the LED lamp. Alternatively, the driving voltage is direct current. Alternatively, the driving voltage may also provide the required operating voltage to the first dimming circuit 31.
As an example, the above-described power supply 70 supplies the driving circuit 40 and the second dimming circuit 32 with a required operation voltage, which is an alternating current.
As one example, the remote control 90 sends the second lighting control signal to the second dimmer circuit 32 via wireless communication.
As an example, the dimming control circuit 10 further comprises a power supply 70 and a control device 80, the control device 80 being connected to the power supply 70 for controlling the power supply 70 to output the second lighting control signal to the second dimming circuit 32 in a power carrier mode.
The lighting system provided by the embodiment also has the beneficial effects that the on-site automatic dimming mode and the remote dimming mode are not mutually interfered, so that the lighting requirement of the on-site lamp and/or the lighting requirement of the remote video monitoring site can be met, and the on-demand lighting, energy saving and environmental protection are realized.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. A dimming control circuit, comprising:
the signal output circuit is used for outputting a first illumination control signal according to the illumination requirement in a preset field range, and the first illumination control signal is used for reflecting the illumination requirement in the preset field range;
the first input end of the dimming module is connected with the signal output circuit, the second input end of the dimming module is used for receiving a second illumination control signal, the second illumination control signal is used for reflecting illumination requirements of a remote video monitoring site, the dimming module is used for outputting a first dimming instruction through a first output end based on the first illumination control signal and outputting a second dimming instruction through a second output end based on the second illumination control signal, and the first output end and the second output end of the dimming module are in a reverse high-resistance state;
and the driving circuit is connected with the first output end and the second output end of the dimming module and is used for controlling the luminous brightness of the lighting equipment based on the first dimming instruction and the second dimming instruction.
2. The dimming control circuit of claim 1, wherein at least one of the first output and the second output of the dimming module is provided with a unidirectional pass device.
3. The dimming control circuit of claim 1, wherein the first dimming command comprises a first dimming voltage and the second dimming command comprises a second dimming voltage;
the driving circuit is used for controlling the luminous brightness of the lighting equipment according to the target dimming voltage in the first dimming voltage and the second dimming voltage; the target dimming voltage is the maximum value of the first dimming voltage and the second dimming voltage, or the target dimming voltage is the dimming voltage carried by the dimming instruction with the highest priority in the first dimming instruction and the second dimming instruction; alternatively, in a case where the first dimming command and the second dimming command each indicate to decrease the luminance of the lighting device, the target dimming voltage is a minimum value of the first dimming voltage and the second dimming voltage;
the dimming control circuit further includes:
the first input end of the selection circuit is connected with the first output end of the dimming module, the second input end of the selection circuit is connected with the second output end of the dimming module, and the output end of the selection circuit is connected with the driving circuit;
the selection circuit is used for outputting a dimming command carrying the target dimming voltage to the driving circuit according to the priorities of the first dimming command and the second dimming command.
4. A dimming control circuit as claimed in any one of claims 1 to 3, wherein the first lighting control signal comprises a first lighting requirement or a second lighting requirement, the lighting level of the first lighting requirement being higher than the lighting level of the second lighting requirement, the dimming module comprising:
a first dimming circuit for outputting a first voltage based on the first lighting demand and for outputting a second voltage based on the second lighting demand, the first dimming voltage being the first voltage or the second voltage, the first voltage being greater than the second voltage;
and a second dimming circuit for receiving the second lighting control signal and outputting the second dimming command including the second dimming voltage based on the second lighting control signal.
5. The dimming control circuit of claim 4, wherein the signal output circuit comprises:
the human body induction switch is connected with the first dimming circuit and is used for outputting a first illumination control signal comprising a first illumination requirement when a user is detected in the preset field range and outputting a first illumination control signal comprising a second illumination requirement when the user is not detected in the preset field range, and the illumination level of the first illumination requirement is higher than that of the second illumination requirement.
6. The dimming control circuit of claim 4, wherein the dimming control circuit further comprises:
the power supply is connected with the driving circuit and the second dimming circuit and is used for providing required working voltage for the driving circuit and the second dimming circuit;
and the control equipment is connected with the power supply and used for controlling the power supply to output the second illumination control signal to the second dimming circuit in a power carrier mode.
7. The dimming control circuit of claim 6, wherein the output of the drive circuit is further coupled to the first dimming circuit, the first dimming circuit extracts an operating voltage required by the first dimming circuit from a driving voltage of the drive circuit, the driving voltage is used to control a light emitting brightness of the lighting device, and the driving voltage is determined by a dimming voltage carried by the dimming command.
8. A dimming control circuit as claimed in any one of claims 1 to 3, wherein the second lighting control signal is from a remote control terminal having a wireless communication connection with the dimming module, the dimming module being operable to receive the second lighting control signal from the remote control terminal via the wireless communication connection;
the dimming module comprises a wireless radio frequency communication module, and the wireless radio frequency communication module is used for supporting the dimming module to establish the wireless communication connection with the remote control end.
9. A dimming control method applied to the dimming control circuit according to any one of claims 1 to 8, comprising:
outputting a first illumination control signal according to illumination requirements in a preset field range, wherein the first illumination control signal is used for reflecting the illumination requirements in the preset field range;
receiving a second illumination control signal, outputting a first dimming instruction based on the first illumination control signal, and outputting a second dimming instruction based on the second illumination control signal, wherein the second illumination control signal is used for reflecting the illumination requirement of a remote video monitoring site;
and controlling the luminous brightness of the lighting equipment based on the first dimming instruction and the second dimming instruction.
10. A lighting system comprising a lighting device and a dimming control circuit as claimed in any one of claims 1 to 8;
the dimming control circuit is connected with the lighting equipment and is used for controlling the luminous brightness of the lighting equipment based on the lighting requirement in a preset field range and the lighting requirement of a remote video monitoring field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310081361.2A CN116390295A (en) | 2023-01-13 | 2023-01-13 | Dimming control circuit, dimming control method and lighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310081361.2A CN116390295A (en) | 2023-01-13 | 2023-01-13 | Dimming control circuit, dimming control method and lighting system |
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| CN116390295A true CN116390295A (en) | 2023-07-04 |
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| CN202310081361.2A Pending CN116390295A (en) | 2023-01-13 | 2023-01-13 | Dimming control circuit, dimming control method and lighting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117835483A (en) * | 2024-03-06 | 2024-04-05 | 珠海市圣昌电子有限公司 | Dimming control circuit supporting multiple dimming modes and dimming method thereof |
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2023
- 2023-01-13 CN CN202310081361.2A patent/CN116390295A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117835483A (en) * | 2024-03-06 | 2024-04-05 | 珠海市圣昌电子有限公司 | Dimming control circuit supporting multiple dimming modes and dimming method thereof |
| CN117835483B (en) * | 2024-03-06 | 2024-05-28 | 珠海市圣昌电子有限公司 | Dimming control circuit supporting multiple dimming modes and dimming method thereof |
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