CN109618449B - direct current driving power supply, light emitting diode lighting device and system and control method - Google Patents

direct current driving power supply, light emitting diode lighting device and system and control method Download PDF

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Publication number
CN109618449B
CN109618449B CN201811510202.5A CN201811510202A CN109618449B CN 109618449 B CN109618449 B CN 109618449B CN 201811510202 A CN201811510202 A CN 201811510202A CN 109618449 B CN109618449 B CN 109618449B
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China
Prior art keywords
emitting diode
lighting device
control signal
direct current
monitoring center
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CN109618449A (en
Inventor
胡齐桂
黄猛
袁金荣
陈勇
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light emitting diodes [LEDs]

Abstract

The invention discloses a direct current driving power supply, a light emitting diode lighting device, a light emitting diode lighting system and a control method. The LED illumination control method comprises the following steps: the environment acquisition device acquires environment parameters of the light-emitting diode lighting device; the monitoring center generates communication control signals for the corresponding direct current light emitting diode lighting devices according to the environmental parameters of the direct current light emitting diode lighting devices; the monitoring center sends the communication control signal to the light-emitting diode lighting device; and the light emitting diode lighting device generates a light source control signal according to the communication control signal and realizes the state control of the light emitting diode lighting device according to the light source control signal. The invention can realize intelligent control and management of illumination, thereby improving the stability of illumination control and achieving the optimal illumination effect.

Description

direct current driving power supply, light emitting diode lighting device and system and control method
Technical Field
The invention relates to the field of illumination, in particular to a direct-current driving power supply, a light-emitting diode illumination device, a light-emitting diode illumination system and a control method.
Background
With the development of lighting technology, LED (Light Emitting Diode) lamps have gradually replaced traditional lighting sources. The LED has the characteristics of high efficiency, energy conservation, good controllability, long service life, stable light emission and the like, and is widely applied to lighting systems in various fields.
Disclosure of Invention
The applicant found that: with the development of intelligent technology, the design and control requirements of many fields on lighting are higher and higher, such as roads, markets, industrial lighting and the like. And intelligent industrial lighting systems require communication information interaction and control with high reliability.
In view of the above technical problems, the present invention provides a dc driving power supply, a light emitting diode lighting device, a system and a control method thereof, which improve the stability of lighting control and achieve the best lighting effect.
According to an aspect of the present invention, there is provided a dc driving power supply provided in a dc light emitting diode lighting device; the direct current driving power supply is used for receiving a communication control signal from the monitoring center; generating a light source control signal according to the communication control signal; and adjusting the light-emitting diode light source module through the light source control signal to realize the state control of the light-emitting diode lighting device.
In some embodiments of the present invention, the communication control signal is a communication control signal generated by the monitoring center for the corresponding dc led lighting device according to an environmental parameter of the dc led lighting device.
In some embodiments of the present invention, one end of the dc driving power is connected to a dc power supply bus, and the other end of the dc driving power is connected to the led light source module.
In some embodiments of the present invention, the dc driving power source receives the communication control signal through a power line carrier method, a signal cable method, or a wireless signal method of a dc bus.
In some embodiments of the present invention, the dc driving power supply includes a signal modulation unit, a control chip, and a light emitting diode dimming unit, wherein:
the signal modulation unit is used for receiving the communication control signal from the monitoring center;
the control chip is used for generating a light source control signal according to the communication control signal;
The light emitting diode dimming unit is used for adjusting output parameters output to the light emitting diode light source module according to the light source control signal so as to adjust the light emitting diode light source module;
In some embodiments of the present invention, the dc driving power supply further comprises a dc/dc conversion circuit, wherein:
and the direct current/direct current conversion circuit is used for converting the direct current bus voltage into the direct current input voltage of the light emitting diode dimming unit.
in some embodiments of the invention, the dc driving power supply further comprises a sampling circuit, wherein:
And the sampling circuit is used for collecting the working state data of the light-emitting diode lighting device, reporting the working state data to the monitoring center through a communication control signal.
in some embodiments of the present invention, the sampling circuit is further configured to monitor a bus voltage change, and convert the bus voltage change with a predetermined rule into a corresponding monitoring center control instruction, where the monitoring center controls the bus voltage to change according to the predetermined rule under a condition of a carrier communication failure;
and the control chip is used for generating a corresponding light source control signal according to the control instruction of the monitoring center.
According to another aspect of the present invention, there is provided a light emitting diode lighting device including a dc driving power supply and at least one light emitting diode light source module, wherein:
The direct current driving power supply is used for receiving a communication control signal from the monitoring center; generating a light source control signal according to the communication control signal; the LED light source module is adjusted through the light source control signal so as to realize the state control of the LED lighting device;
And the light emitting diode light source module is used for providing illumination light outwards according to the light source control signal of the direct current driving power supply.
in some embodiments of the present invention, the dc driving power supply is the dc driving power supply according to any one of the above embodiments.
in some embodiments of the present invention, the light emitting diode lighting device further comprises a heat dissipation structure, wherein:
And the heat dissipation structure is used for fixing, sealing and dissipating heat of the light-emitting diode lighting device.
according to another aspect of the present invention, there is provided a light emitting diode lighting system, including an environment acquisition device, a monitoring center, a dc bus and a light emitting diode lighting device, wherein:
The environment acquisition device is used for acquiring the environment parameters of the light-emitting diode lighting device;
The monitoring center is used for generating communication control signals for the corresponding direct current light-emitting diode lighting devices according to the environmental parameters of the direct current light-emitting diode lighting devices;
And the light emitting diode lighting device is used for generating a light source control signal according to the communication control signal and realizing the state control of the light emitting diode lighting device according to the light source control signal.
In some embodiments of the present invention, the light emitting diode illumination system further comprises:
And the direct current bus is used for sending the communication control signal to the light-emitting diode lighting device.
In some embodiments of the present invention, the led lighting device is the led lighting device according to any of the above embodiments.
In some embodiments of the present invention, the light emitting diode illumination system further comprises:
And the centralized converter is used for getting electricity from an alternating current power grid or a direct current power supply and outputting stable, adjustable and controllable direct current bus voltage.
in some embodiments of the present invention, the monitoring center is further configured to control the bus voltage to change according to a predetermined rule in case of a carrier communication failure, so that the led lighting device converts the bus voltage change with the predetermined rule into a corresponding monitoring center control instruction, and implement state control on the led lighting device according to the monitoring center control instruction.
in some embodiments of the present invention, the monitoring center is further configured to receive the operating status data returned by the led lighting device
According to another aspect of the present invention, there is provided a light emitting diode illumination control method, including:
The environment acquisition device acquires environment parameters of the light-emitting diode lighting device;
The monitoring center generates communication control signals for the corresponding direct current light emitting diode lighting devices according to the environmental parameters of the direct current light emitting diode lighting devices;
The monitoring center sends the communication control signal to the light-emitting diode lighting device;
And the light emitting diode lighting device generates a light source control signal according to the communication control signal and realizes the state control of the light emitting diode lighting device according to the light source control signal.
in some embodiments of the present invention, the monitoring center sending the communication control signal to the led lighting device includes:
and the monitoring center sends the communication control signal to the light-emitting diode lighting device in a power carrier mode, a signal cable mode or a wireless signal mode of a direct current bus.
In some embodiments of the present invention, the led lighting control method further comprises:
The centralized converter takes electricity from an alternating current power grid or a direct current power supply and outputs stable, adjustable and controllable direct current bus voltage.
In some embodiments of the present invention, the led lighting control method further comprises:
The monitoring center controls the bus voltage to change according to a preset rule under the condition of carrier communication failure;
The LED lighting device converts bus voltage change with a preset rule into a corresponding monitoring center control instruction, and realizes state control of the LED lighting device according to the monitoring center control instruction.
in some embodiments of the present invention, the led lighting control method further comprises:
And the monitoring center receives the working state data returned by the LED lighting device.
the invention can realize intelligent control and management of illumination, thereby improving the stability of illumination control and achieving the optimal illumination effect.
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 diagram of some embodiments of LED lighting systems according to the present invention.
Fig. 2 is a schematic diagram of some embodiments of the led lighting device of the present invention.
Fig. 3 is a schematic diagram of some embodiments of the dc driving power supply of the present invention.
Fig. 4 is a schematic diagram of some embodiments of led illumination control methods 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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
in all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
FIG. 1 is a schematic diagram of some embodiments of LED lighting systems according to the present invention. As shown in fig. 1, the led lighting system may include an environment acquisition device 6, a monitoring center 3, and an led lighting device 5, wherein:
and the environment acquisition device 6 is used for acquiring the environment parameters of the LED lighting device 5.
In some embodiments of the present invention, the environmental parameter may include at least one of an environmental temperature, an illuminance of natural light and an illuminated plane, human infrared sensor data, camera data, and the like.
The monitoring center 3 is used for generating communication control signals for the corresponding direct current light-emitting diode lighting devices 5 according to the environmental parameters of the direct current light-emitting diode lighting devices 5; and sending the communication control signal to the light emitting diode lighting device.
In some embodiments of the present invention, the monitoring center 3 may be configured to send the communication control signal to the led lighting device 5 by a power line carrier method, a signal cable method, or a wireless signal method of a dc bus.
in the above embodiments of the present invention, the communication mode between the monitoring center and the led lighting device may be a power carrier mode, a signal cable mode, a wireless signal mode, or the like.
And the light emitting diode lighting device 5 is used for generating a light source control signal according to the communication control signal and realizing the state control of the light emitting diode lighting device 5 according to the light source control signal.
In some embodiments of the present invention, as shown in fig. 2, the led lighting system may further include a dc bus 2, wherein:
And the direct current bus 2 is used for sending the communication control signal to the light-emitting diode lighting device 5.
In some embodiments of the present invention, the communication control signal 4 may be implemented as a carrier signal of a dc bus.
In some embodiments of the present invention, as shown in fig. 2, the led lighting system may further include a concentration current transformer 1, wherein:
the centralized converter 1 is used for getting electricity from an alternating current power grid or a direct current power supply, outputting stable, adjustable and controllable direct current bus voltage, realizing electrical isolation, realizing the floating design of a direct current bus, and improving safety.
in some embodiments of the present invention, the monitoring center 3 may analyze and calculate a predetermined lighting control strategy according to the environmental parameters acquired by the environment acquisition device 6, control the direct current LED lamp lighting devices in different areas, couple the communication control signal 4 to the direct current bus 2, and implement bidirectional transmission. The communication control signal 4 is transmitted to all the dc LED lighting devices 5 in the dc lighting system through the dc bus. The communication control signals are detected and identified inside the power supply of the direct current LED lighting device, and the light source control signals are generated through analysis by the built-in MCU control module, so that the state of the lamp is controlled.
In some embodiments of the invention, the predetermined lighting control strategy may comprise: the lamp is turned off in the daytime and is automatically turned on at night.
in some embodiments of the invention, the predetermined lighting control strategy may comprise: and turning on the lamp under the condition that the outside natural light brightness is lower than a preset value.
in some embodiments of the invention, the predetermined lighting control strategy may comprise: in daytime, the natural light of the illuminated area is strong, the output of the illumination lamp in the area can be properly reduced, and the lamp can be turned off when the light is larger than a sufficient required value.
In still other embodiments of the present invention, the predetermined lighting control strategy may include: in the large area illumination, the working plane in some areas requires high illumination, and in some areas, areas such as aisles and material placement do not need high illumination requirements, and the brightness of the lamp can be freely switched and adjusted according to the requirements of the working plane, so that energy conservation is realized.
In further embodiments of the present invention, the predetermined lighting control strategy may comprise: and judging the illuminated area according to the flow of people and the traffic flow, and increasing the brightness of the lamp.
In some embodiments of the invention, different areas refer to different locations of the lighting device. For example: the monitoring center is used for controlling different places such as workshop lighting, outdoor lighting, road lighting and the like with different requirements.
in other embodiments of the present invention, the different areas refer to different areas of the same location, and are suitable for large-area multi-lamp centralized lighting. Such as industrial plants, commercial lighting, warehousing, etc.
in some embodiments of the present invention, the area requiring dimming control has an environment collection device 6 for collecting data such as ambient light, temperature, etc.
In some embodiments of the invention, the lighting control strategies of the different spot lighting devices are different. For example: the lighting in the factory building can be carried out at night in the daytime, and the light can be adjusted according to the change of ambient light, so that the power consumption of the light is saved while the illumination of a working surface is ensured; for some areas with unusual operation, the lamp can be lighted intermittently, for example, the lamp is turned on when people or vehicles pass; if the outdoor lamp is used for illumination, the lamp does not need to be turned on in the daytime, the outdoor illumination requirements are different, frequent control and dimming are not needed, and the control is simplified.
in some embodiments of the present invention, the monitoring center 3 may also be configured to receive the operation status data returned by the led lighting device 5 through the communication control signal.
In some embodiments of the present invention, the operating status data of the dc LED lighting device 5 may be transmitted to the monitoring center 3 in a power carrier mode, a signal cable mode, or a wireless signal mode.
The communication control signal of the above embodiment of the present invention may be transmitted in both directions, or may be transmitted in one direction.
Based on the light emitting diode lighting system provided by the embodiment of the invention, the advantages of relative independence of lighting control and power supply loops can be utilized, and the problems of long wired communication wiring, limitation of wireless electromagnetic wave communication frequency and electromagnetic compatibility among lighting lamps can be effectively solved by adopting a pure direct current bus carrier communication mode.
The embodiment of the invention adopts the illumination supplied by the direct current bus, can improve the efficiency, reduce the cost of an intelligent illumination system, and solve the problems of unstable and easy interference of alternating current line carrier communication.
The invention can realize the intelligent control and management of illumination through the flow carrier communication technology, thereby improving the stability of illumination control and achieving the optimal illumination effect.
In some embodiments of the present invention, the monitoring center 3 may be further configured to, in the event of a carrier communication failure, change the dc bus voltage value through the centralized converter, and control the bus voltage to change according to a predetermined rule (i.e., through a regular bus voltage change), so that the led lighting device 5 converts the bus voltage change according to the predetermined rule into a corresponding control instruction of the monitoring center 3, and implement state control on the led lighting device 5 according to the control instruction of the monitoring center 3.
On the basis of the direct current carrier communication, the direct current carrier communication control system further has a direct current bus voltage modulation function and is matched with the direct current carrier communication to control the direct current lamp. When the direct current carrier communication fails, the lamp cannot recognize and respond to the light source control signal, the direct current bus voltage value can be changed through the centralized converter, and the sampling circuit of the direct current lamp power supply (such as the sampling circuit in the embodiment of fig. 3) can independently realize the collection and judgment of the bus voltage through the regular bus voltage change, so that the unidirectional light source control signal transmission is realized, the lamp can still be controlled under the condition of the carrier communication failure, and the control reliability of the direct current lighting system is improved.
in some embodiments of the invention, the regular bus voltage variation may include: the lamp driving power supply detects an input direct current voltage value, such as a rated value of 400V, when the voltage value is stable in 370-390V, or the bus voltage changes in voltage ranges of 400V, 380V, 360V, 340V and other sections. The lamp power supply detects the change information according to a built-in program and voltage sampling, thereby identifying the control command of the monitoring center and controlling. This mode allows simple control only in the event of a communication failure.
the change of the bus voltage of the above embodiment of the present invention does not affect the brightness of the lighting device. Because the design of the wide voltage range is adopted when the input voltage range of the LED driving power supply is designed, the power supply input is regulated and controlled through the power panel and the control chip, and the stability of output voltage and current is ensured. The working state of the LED light source module is related to the output voltage and current of the driving power supply, and as long as the input voltage of the power supply changes within the working range, the brightness of the lamp cannot be affected.
according to the embodiment of the invention, the voltage of the direct current bus is modulated, and the lighting system has the transient communication fault operation regulation and control capability.
The bus voltage modulation control of the above-described embodiments of the present invention is not limited to the application to the lighting system and carrier communication of the dc bus.
The embodiment of the invention improves the stability of the intelligent lighting system, has the capability of regulating and controlling the operation of the transient communication fault, and is suitable for high-requirement dimming occasions.
The embodiment of the invention can solve the problems that lighting communication is easy to interfere, the frequency of wireless control is limited and electromagnetic compatibility is high.
The embodiment of the invention can fully utilize the independence characteristic of the lighting power supply system, provides a control method based on direct-current bus voltage modulation and carrier communication, and enhances the stability and reliability of communication control signals.
The embodiment of the invention can still realize the regulation and control of the lighting lamp under the condition of abnormal communication.
Fig. 2 is a schematic diagram of some embodiments of the led lighting device of the present invention. As shown in fig. 2, the led lighting device (e.g. the led lighting device 5 in the embodiment of fig. 1) of the present invention may include a dc driving power supply 7 and at least one led light source module 8, wherein:
a direct current drive power supply 7 for receiving a communication control signal from the monitoring center; generating a light source control signal according to the communication control signal; the led light source module 8 is adjusted by the light source control signal to realize the state control of the led lighting device 5.
in some embodiments of the present invention, the dc driving power supply 7 may be configured to receive the communication control signal through a power carrier mode, a signal cable mode or a wireless signal mode of the dc bus.
In some embodiments of the invention, the dc driving power supply 7 may also collect parameters such as temperature, voltage, current, etc. of the lamp, so as to realize the protection function of the lamp itself, and send the state of the lamp back to the monitoring center through the dc communication control signal, so as to realize real-time monitoring and management.
In some embodiments of the present invention, the dc driving power supply 7 may also collect and analyze the power consumption of the lamp, so as to implement diversification and energy optimized configuration of the whole lighting communication system.
And the light emitting diode light source module 8 is used for providing illumination light outwards according to the light source control signal of the direct current driving power supply 7.
In some embodiments of the present invention, the led light source module 8 can provide illumination light to meet illumination requirements, and drive the power supply to output voltage and current for adjustment, thereby achieving dimming function.
In some embodiments of the present invention, as shown in fig. 2, the led lighting device 5 may further include a heat dissipation structure 9, wherein:
The heat dissipation structure 9 may include a lamp body and an appearance component for fixing, sealing and dissipating heat of the led lighting device 5.
Based on the light emitting diode lighting device provided by the embodiment of the invention, the advantages of relative independence of lighting control and power supply loops can be utilized, and the problems of long wired communication wiring, limitation of wireless electromagnetic wave communication frequency and electromagnetic compatibility among lighting lamps can be effectively solved by adopting a pure direct current bus carrier communication mode.
The embodiment of the invention adopts the illumination supplied by the direct current bus, can improve the efficiency, reduce the cost of an intelligent illumination system, and solve the problems of unstable and easy interference of alternating current line carrier communication.
The invention can realize the intelligent control and management of illumination through the flow carrier communication technology, thereby improving the stability of illumination control and achieving the optimal illumination effect.
the embodiment of the invention improves the stability of the intelligent lighting system, has the capability of regulating and controlling the operation of the transient communication fault, and is suitable for high-requirement dimming occasions.
The embodiment of the invention can fully utilize the independence characteristic of the lighting power supply system, provides a control method based on direct-current bus voltage modulation and carrier communication, and enhances the stability and reliability of communication control signals.
fig. 3 is a schematic diagram of some embodiments of the dc driving power supply of the present invention. As shown in fig. 3, the dc driving power supply (e.g. the dc driving power supply 7 in the embodiment of fig. 2) of the present invention may include a signal modulation unit 10, a control chip 15 and a light emitting diode dimming unit 12, wherein:
And a signal modulation unit 10 for receiving the communication control signal from the monitoring center.
in some embodiments of the present invention, the communication control signal may be a communication control signal generated by the monitoring center 3 for the corresponding dc led lighting device 5 according to an environmental parameter of the dc led lighting device 5.
And a control chip (MCU)15 for generating a light source control signal according to the communication control signal.
and the light emitting diode dimming unit 12 is configured to adjust an output parameter output to the light emitting diode light source module 8 according to the light source control signal, so as to adjust the light emitting diode light source module 8.
In some embodiments of the present invention, the dc driving power supply 7 of the embodiment of fig. 2 and 3 may be disposed in the dc led lighting device 5 of the embodiment of fig. 1; the direct current driving power supply 7 is used for receiving communication control signals from the monitoring center 3; generating a light source control signal according to the communication control signal; the led light source module 8 of the embodiment of fig. 2 is adjusted by a light source control signal to realize the state control of the led lighting device 5.
In some embodiments of the present invention, the dc driving power source receives the communication control signal through a communication method such as a power carrier method, a signal cable method, or a wireless signal method of a dc bus.
In some embodiments of the present invention, in a case of adopting a power carrier mode of a dc bus, one end of the dc driving power supply 7 is connected to the dc power supply bus, and the other end of the dc driving power supply 7 is connected to the led light source module 8.
In some embodiments of the present invention, as shown in fig. 3, the DC driving power supply 7 may further include a direct current/direct current conversion circuit (DC/DC)11, wherein:
and a dc/dc conversion circuit 11, configured to convert the dc bus voltage into a dc input voltage of the led dimming unit 12.
In some embodiments of the present invention, as shown in fig. 3, the dc driving power supply 7 may further include a sampling circuit 14, wherein:
and the sampling circuit 14 is used for collecting the working state data of the light-emitting diode lighting device 5, reporting the working state data to the monitoring center 3 through a communication control signal.
in some embodiments of the present invention, the sampling circuit 14 may be built in a sampling circuit and a sensor of operating state parameters such as voltage, current, temperature, etc. in the dc driving power supply 7.
In some embodiments of the present invention, the sampling circuit 14 may also be configured to monitor a bus voltage change, and convert the bus voltage change with a predetermined rule into a corresponding monitoring center control instruction, where the monitoring center 3 controls the bus voltage to change according to the predetermined rule under the condition of a carrier communication failure; the control chip 15 can also be used for generating a corresponding light source control signal according to the control instruction of the monitoring center 3.
In some embodiments of the present invention, as shown in fig. 3, the dc driving power supply 7 may further include a filter circuit and a power supply, wherein:
And the filter circuit is used for filtering the noise signal of the direct current bus.
and the power supply is used for providing a working power supply for the signal conditioning module.
In some embodiments of the present invention, as shown in fig. 3, the DC driving power supply 7 of the present invention directly takes power from the DC bus, and DC/DC conversion is performed with high efficiency. The monitoring center sends out transmission data; the signal modulation unit of power monitors the analysis in real time, satisfies the effective data that communication protocol required, transmits to MCU control core and carries out data analysis and processing, converts control signal into, and the control LED adjusts luminance the output parameter of module, realizes the regulation to LED module (13). The sampling circuit collects parameters such as temperature, voltage and current of the lamp, the self-protection function of the lamp is achieved, the state of the lamp is sent back to the monitoring center through the direct current carrier signal, and real-time monitoring and management are achieved. According to the embodiment of the invention, the electricity consumption of the lamp is collected and analyzed, so that diversification and energy optimal configuration of the whole lighting communication system are realized.
based on the direct current driving power supply provided by the embodiment of the invention, the advantages of relative independence of the illumination control and power supply loop can be utilized, and the problems of long wired communication wiring, limitation of wireless electromagnetic wave communication frequency and electromagnetic compatibility among illumination lamps can be effectively solved by adopting a pure direct current bus carrier communication mode.
The embodiment of the invention adopts the illumination supplied by the direct current bus, can improve the efficiency, reduce the cost of an intelligent illumination system, and solve the problems of unstable and easy interference of alternating current line carrier communication.
The invention can realize the intelligent control and management of illumination through the flow carrier communication technology, thereby improving the stability of illumination control and achieving the optimal illumination effect.
the embodiment of the invention improves the stability of the intelligent lighting system, has the capability of regulating and controlling the operation of the transient communication fault, and is suitable for high-requirement dimming occasions.
The embodiment of the invention can fully utilize the independence characteristic of the lighting power supply system, provides a control method based on direct-current bus voltage modulation and carrier communication, and enhances the stability and reliability of communication control signals.
Fig. 4 is a schematic diagram of some embodiments of led illumination control methods of the present invention. Preferably, this embodiment can be performed by the led lighting control system of the present invention. The method comprises the following steps:
Step 41, the environment acquisition device 6 acquires the environment parameters of the led lighting device 5.
and 42, the monitoring center 3 generates communication control signals for the corresponding direct current light-emitting diode lighting devices 5 according to the environmental parameters of the direct current light-emitting diode lighting devices 5.
And 43, the monitoring center sends the communication control signal to the light-emitting diode lighting device.
In some embodiments of the present invention, step 43 may comprise: and the monitoring center sends the communication control signal to the light-emitting diode lighting device in a power carrier mode, a signal cable mode or a wireless signal mode of a direct current bus.
And step 44, the light emitting diode lighting device 5 generates a light source control signal according to the communication control signal, and realizes the state control of the light emitting diode lighting device 5 according to the light source control signal.
In some embodiments of the present invention, the led lighting control method may further include: the concentration converter 1 gets power from an alternating current power grid or a direct current power supply and outputs stable, adjustable and controllable direct current bus voltage.
In some embodiments of the present invention, the led lighting control method may further include: the monitoring center 3 receives the working state data returned by the LED lighting device 5 through the communication control signal.
Based on the light emitting diode illumination control method provided by the embodiment of the invention, the advantages of relative independence of illumination control and power supply loops can be utilized, and the problems of long wired communication wiring, limitation of wireless electromagnetic wave communication frequency and electromagnetic compatibility among illumination lamps can be effectively solved by adopting a pure direct current bus carrier communication mode.
the embodiment of the invention adopts the illumination supplied by the direct current bus, can improve the efficiency, reduce the cost of an intelligent illumination system, and solve the problems of unstable and easy interference of alternating current line carrier communication.
The invention can realize the intelligent control and management of illumination through the flow carrier communication technology, thereby improving the stability of illumination control and achieving the optimal illumination effect.
In some embodiments of the present invention, the led lighting control method may further include: the monitoring center 3 controls the bus voltage to change according to a preset rule under the condition of carrier communication failure; the LED lighting device 5 converts the bus voltage variation with a preset rule into a corresponding control instruction of the monitoring center 3, and the state control of the LED lighting device 5 is realized according to the control instruction of the monitoring center 3.
According to the embodiment of the invention, the voltage of the direct current bus is modulated, and the lighting system has the transient communication fault operation regulation and control capability.
The bus voltage modulation control of the above-described embodiments of the present invention is not limited to the application to the lighting system and carrier communication of the dc bus.
The embodiment of the invention improves the stability of the intelligent lighting system, has the capability of regulating and controlling the operation of the transient communication fault, and is suitable for high-requirement dimming occasions.
the embodiment of the invention can solve the problems that lighting communication is easy to interfere, the frequency of wireless control is limited and electromagnetic compatibility is high.
The embodiment of the invention can fully utilize the independence characteristic of the lighting power supply system, provides a control method based on direct-current bus voltage modulation and carrier communication, and enhances the stability and reliability of communication control signals.
The embodiment of the invention can still realize the regulation and control of the lighting lamp under the condition of abnormal communication.
The monitoring center and control chips described above may be implemented as a general purpose processor, a Programmable Logic Controller (PLC), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any suitable combination thereof, for performing the functions described herein.
Thus far, the present invention has been described in detail. Some details well known in the art have not been described in order to avoid obscuring the concepts of the present invention. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (19)

1. a DC driving power supply is characterized in that,
The direct current driving power supply is arranged in the direct current light-emitting diode lighting device;
The direct current driving power supply is used for receiving a communication control signal from the monitoring center; generating a light source control signal according to the communication control signal; the LED light source module is adjusted through the light source control signal so as to realize the state control of the LED lighting device;
Wherein, direct current drive power supply includes sampling circuit, control chip and emitting diode unit of adjusting luminance, wherein:
The sampling circuit is used for monitoring the bus voltage change and converting the bus voltage change with a preset rule into a corresponding monitoring center control instruction, wherein the monitoring center controls the bus voltage to change according to the preset rule under the condition of carrier communication failure;
The control chip is used for generating a corresponding light source control signal according to the control instruction of the monitoring center;
And the light emitting diode dimming unit is used for adjusting the output parameters output to the light emitting diode light source module according to the light source control signal so as to adjust the light emitting diode light source module.
2. The dc driving power supply according to claim 1, wherein the communication control signal is a communication control signal generated by the monitoring center for the corresponding dc led lighting device according to an environmental parameter of the dc led lighting device.
3. The direct current drive power supply according to claim 1 or 2, wherein one end of the direct current drive power supply is connected to a direct current supply bus, and the other end of the direct current drive power supply is connected to the light emitting diode light source module.
4. The direct-current drive power supply according to claim 1 or 2,
The direct current driving power supply receives the communication control signal in a power carrier mode, a signal cable mode or a wireless signal mode of a direct current bus.
5. The direct-current drive power supply according to claim 1 or 2, characterized by further comprising a signal modulation unit, wherein:
The signal modulation unit is used for receiving the communication control signal from the monitoring center;
and the control chip is used for generating a light source control signal according to the communication control signal.
6. the direct-current drive power supply according to claim 5, further comprising a direct-current/direct-current conversion circuit, wherein:
and the direct current/direct current conversion circuit is used for converting the direct current bus voltage into the direct current input voltage of the light emitting diode dimming unit.
7. the direct-current drive power supply according to claim 1 or 2,
And the sampling circuit is used for collecting the working state data of the light-emitting diode lighting device and reporting the working state data to the monitoring center.
8. An led lighting device comprising a dc power source and at least one led light source module, wherein:
the direct current driving power supply is used for receiving a communication control signal from the monitoring center; generating a light source control signal according to the communication control signal; the LED light source module is adjusted through the light source control signal so as to realize the state control of the LED lighting device;
The light emitting diode light source module is used for providing illumination light to the outside according to a light source control signal of the direct current driving power supply;
The direct-current driving power supply is used for monitoring bus voltage change and converting the bus voltage change with a preset rule into a corresponding monitoring center control instruction, wherein the monitoring center controls the bus voltage to change according to the preset rule under the condition of carrier communication failure; generating a corresponding light source control signal according to the control instruction of the monitoring center; and adjusting the output parameters output to the light-emitting diode light source module according to the light source control signal so as to realize the adjustment of the light-emitting diode light source module.
9. The led lighting device according to claim 8, wherein the dc driving power supply is the dc driving power supply according to any one of claims 1 to 7.
10. The light emitting diode illumination device of claim 8 or 9, further comprising a heat dissipation structure, wherein:
And the heat dissipation structure is used for fixing, sealing and dissipating heat of the light-emitting diode lighting device.
11. A light emitting diode lighting system, comprising an environment acquisition device, a monitoring center and a light emitting diode lighting device, wherein:
the environment acquisition device is used for acquiring the environment parameters of the light-emitting diode lighting device;
the monitoring center is used for generating communication control signals for the corresponding direct current light-emitting diode lighting devices according to the environmental parameters of the direct current light-emitting diode lighting devices;
The light emitting diode lighting device is used for generating a light source control signal according to the communication control signal and realizing the state control of the light emitting diode lighting device according to the light source control signal;
the monitoring center is also used for controlling the bus voltage to change according to a preset rule under the condition of carrier communication fault, so that the LED lighting device converts the bus voltage change with the preset rule into a corresponding monitoring center control instruction, and the state control of the LED lighting device is realized according to the monitoring center control instruction.
12. The led lighting system of claim 11, further comprising:
And the direct current bus is used for sending the communication control signal to the light-emitting diode lighting device.
13. The led lighting system according to claim 11 or 12, wherein the led lighting device is the led lighting device according to any one of claims 8 to 10.
14. the led lighting system of claim 11 or 12, further comprising:
and the centralized converter is used for getting electricity from an alternating current power grid or a direct current power supply and outputting stable, adjustable and controllable direct current bus voltage.
15. The LED lighting system according to claim 11 or 12,
and the monitoring center is also used for receiving the working state data returned by the LED lighting device.
16. a method for controlling led lighting, comprising:
The environment acquisition device acquires environment parameters of the light-emitting diode lighting device;
The monitoring center generates communication control signals for the corresponding direct current light emitting diode lighting devices according to the environmental parameters of the direct current light emitting diode lighting devices;
The monitoring center sends the communication control signal to the light-emitting diode lighting device;
The light emitting diode lighting device generates a light source control signal according to the communication control signal and realizes the state control of the light emitting diode lighting device according to the light source control signal;
The LED illumination control method further comprises the following steps:
The monitoring center controls the bus voltage to change according to a preset rule under the condition of carrier communication failure;
The LED lighting device converts bus voltage change with a preset rule into a corresponding monitoring center control instruction, and realizes state control of the LED lighting device according to the monitoring center control instruction.
17. The led lighting control method of claim 16, wherein the monitoring center sending the communication control signal to the led lighting device comprises:
And the monitoring center sends the communication control signal to the light-emitting diode lighting device in a power carrier mode, a signal cable mode or a wireless signal mode of the direct-current bus.
18. the led lighting control method of claim 16 or 17, further comprising:
the centralized converter takes electricity from an alternating current power grid or a direct current power supply and outputs stable, adjustable and controllable direct current bus voltage.
19. The led lighting control method of claim 16 or 17, further comprising:
and the monitoring center receives the working state data returned by the LED lighting device.
CN201811510202.5A 2018-12-11 2018-12-11 direct current driving power supply, light emitting diode lighting device and system and control method Active CN109618449B (en)

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