CN210840156U - Lamp and control device thereof - Google Patents
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- CN210840156U CN210840156U CN201921399426.3U CN201921399426U CN210840156U CN 210840156 U CN210840156 U CN 210840156U CN 201921399426 U CN201921399426 U CN 201921399426U CN 210840156 U CN210840156 U CN 210840156U
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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 utility model discloses a lamps and lanterns and controlling means thereof, wherein, the device includes: a light source; the light sensor is used for collecting the brightness of the light source and generating a brightness collection value; the data processor is used for generating a brightness actual value of the light source according to the brightness acquisition value, the position of the optical sensor and the position of the light source, comparing the brightness actual value with a brightness theoretical value of the light source and generating a switch control signal; and the switching power supply is respectively connected with the light source and the data processor, and the switching power supply is switched on or off under the control of the switching control signal so as to stabilize the brightness of the light source within a set range near a brightness theoretical value. Therefore, the on-off of the switch power supply is controlled according to the switch control signal, so that the brightness of the light source is stabilized in a set range near a theoretical brightness value, the brightness of the lamp in different environments is kept unchanged, and the luminosity compensation is carried out on natural light decay caused by long-time opening of the lamp.
Description
Technical Field
The utility model relates to a vehicle technical field, in particular to controlling means and a lamps and lanterns of lamps and lanterns.
Background
A conventional automotive lamp of the prior art, as shown in fig. 1, a lamp structure generally includes an electrical interface a, a heat sink and circuit board b, a light source c, a reflective cup d, and a lamp cover e.
However, the related art has problems that the luminance is used as a performance index of the lamp, but due to the heat dissipation problem and the material defect of the light source, there is a certain degree of light attenuation, and the luminance may have a large difference at different environmental temperatures, and the above problems all cause the driving safety hazard of the driver.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the above-mentioned technology to a certain extent. Therefore, a first objective of the present invention is to provide a control device for a lamp, which can ensure that the brightness of the lamp under different environments remains unchanged, and perform luminosity compensation on the natural light decay caused by the long-time opening of the lamp.
A second object of the present invention is to provide a lamp.
In order to achieve the above object, the present invention provides a control device for a lamp, including: a light source; the light sensor is used for acquiring the brightness of the light source and generating a brightness acquisition value; the data processor is connected with the light sensor and used for generating a brightness actual value of the light source according to the brightness acquisition value, the position of the light sensor and the position of the light source, comparing the brightness actual value with a brightness theoretical value of the light source and generating a switch control signal; and the switching power supply is respectively connected with the light source and the data processor, and is switched on or switched off under the control of the switching control signal, so that the brightness of the light source is stabilized in a set range near the theoretical brightness value.
According to the utility model discloses a controlling means of lamps and lanterns, through the luminance of light sensor collection light source, generate the luminance collection value, and through data processor according to luminance collection value, light sensor's position and the position of light source, generate the luminance actual value of light source, and compare the luminance actual value with the luminance theoretical value of light source, generate on-off control signal, and then, switching power supply opens or shuts off under on-off control signal's control, so that the luminance of light source is stabilized near luminance theoretical value settlement within range. Therefore, the on-off of the switch power supply is controlled according to the switch control signal, so that the brightness of the light source is stabilized in a set range near a theoretical brightness value, the brightness of the lamp in different environments is kept unchanged, and the luminosity compensation is carried out on natural light decay caused by long-time opening of the lamp.
In addition, according to the utility model discloses a controlling means of lamps and lanterns still can have following additional technical characterstic:
in some examples, the switch control signal is a pulse width modulated signal.
In some examples, the light sensor is a white light sensor; the white light sensor is used for: collecting the white light brightness of the light source to generate a white light brightness collection value; the data processor is specifically configured to: generating a white light brightness actual value of the light source according to the white light brightness acquisition value, the position of the white light sensor and the position of the light source, and comparing the white light brightness actual value with a white light brightness theoretical value of the light source to generate a path of switch control signal; the number of the switch power supplies is 1, and the switch power supplies are switched on or off under the control of the switch control signals, so that the white light brightness of the light source is stabilized in a set range near the theoretical value of the white light brightness.
In some examples, the light sensor is a color light sensor; the colored light sensor is used for: collecting RGB (red, green and blue) three-color brightness of the light source to generate an RGB three-color brightness collection value; the data processor is specifically configured to: generating an actual RGB three-color light brightness value of the light source according to the RGB three-color light brightness acquisition value, the position of the color light sensor and the position of the light source, and comparing the actual RGB three-color light brightness value with an RGB three-color light brightness theoretical value of the light source to generate three paths of switch control signals; the number of the switch power supplies is 3, the 3 switch power supplies correspond to the three switch control signals one by one, and the switch power supplies are switched on or switched off under the control of the switch control signals, so that the brightness of the RGB three-color light of the light source is stabilized in a set range near the theoretical value of the brightness of the RGB three-color light.
In some examples, the data processor comprises: the arithmetic unit is connected with the light sensor and is used for generating the actual brightness value according to the brightness acquisition value, the position of the light sensor and the position of the light source; and the signal generator is respectively connected with the arithmetic unit and the switching power supply and is used for comparing the actual brightness value with the theoretical brightness value to generate the switching control signal.
In some examples, the signal generator includes: the comparator is connected with the arithmetic unit and used for comparing the actual brightness value with the theoretical brightness value to generate a brightness difference value; and the regulator is respectively connected with the comparator and the switching power supply, and is used for generating the switching control signal according to the brightness difference value.
In some examples, the regulator is a proportional integral derivative regulator.
In some examples, the control device of the luminaire further includes: and the lamp switch is connected with the switching power supply and used for switching on or switching off the power supply of the switching power supply.
In some examples, the control device of the luminaire further includes: and the power supply is connected with the lamp switch and used for supplying power to the switch power supply.
In order to achieve the above object, the second aspect of the present invention provides a lamp, including the control device of the above lamp.
According to the utility model discloses lamps and lanterns adopt the controlling means of above-mentioned lamps and lanterns, can switch on or turn-off according to on-off control signal control switching power to make the luminance of light source stabilize near the theoretical value of luminance settlement within range, thereby, ensure that lamps and lanterns luminance under different environment remains unchanged, and carry out luminosity compensation to the natural light decay that leads to because of lamps and lanterns open for a long time.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural diagram of a prior art lamp;
fig. 2 is a schematic block diagram of a control device of a lamp according to the present invention;
fig. 3 is a schematic view of a light sensor mounting location according to an embodiment of the present invention;
fig. 4 is a block diagram of a control device of a lamp according to an embodiment of the present invention;
fig. 5 is a block diagram of a control device of a lamp according to another embodiment of the present invention;
fig. 6 is a block diagram of a control device of a lamp according to an embodiment of the present invention;
fig. 7 is a schematic block diagram of the lamp of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The following describes the lamp and the control device thereof according to the present invention with reference to the drawings.
Fig. 2 is a schematic block diagram of a control device of a lamp according to the present invention.
As shown in fig. 2, the control device 100 of the luminaire includes: a light source 10, a light sensor 20, a data processor 30 and a switching power supply 40.
The light sensor 20 is configured to collect brightness of the light source 10 and generate a brightness collection value; the data processor 30 is connected with the light sensor 20, and the data processor 30 is configured to generate an actual brightness value of the light source 10 according to the brightness acquisition value, the position of the light sensor 20, and the position of the light source 10, and compare the actual brightness value with a theoretical brightness value of the light source 10 to generate a switching control signal; the switching power supply 40 is respectively connected with the light source 10 and the data processor 30, and the switching power supply 40 is switched on or off under the control of the switching control signal, so that the brightness of the light source 10 is stabilized within a set range near a theoretical brightness value.
Alternatively, as shown in fig. 3, the light sensor 20 may be disposed near the light source 10 to collect the brightness of the light source 10, wherein the brightness collection value generated by the light sensor 20 may be an electrical signal corresponding to the brightness of the light source 10, so as to facilitate the data processing performed by the data processor 30.
Specifically, in this embodiment, the control device 100 of the luminaire may establish a mapping relationship in advance according to the position of the light sensor 20 and the position of the light source 10, so as to generate a luminance actual value of the light source 10 according to the luminance collection value and the mapping relationship through the data processor 30, compare the luminance actual value with a luminance theoretical value of the light source 10, generate a switching control signal, and control the switching power supply 40 to be turned on or off under the control of the switching control signal, so as to stabilize the luminance of the light source 10 within a set range near the luminance theoretical value, thereby ensuring that the luminance of the luminaire under different environments remains unchanged, and performing luminance compensation on natural light decay caused by long-time turning on of the luminaire.
Further, the switch control signal may be a pulse width modulation signal.
In this embodiment, the actual brightness value is compared with the theoretical brightness value of the light source 10 to generate the switching control signal, that is, the corresponding pwm signal is generated according to the comparison result between the actual brightness value and the theoretical brightness value of the light source 10, for example, if the actual brightness value is greater than the theoretical brightness value, the pwm signal for turning off the switching power supply 40 is generated, and if the actual brightness value is less than the theoretical brightness value, the pwm signal for turning on the switching power supply 40 is generated.
Further, as shown in fig. 4, the light sensor 20 may be a white light sensor 201.
Wherein the white light sensor 201 is configured to: collecting the white light brightness of the light source 10 to generate a white light brightness collection value; the data processor 30 is specifically configured to: generating a white light brightness actual value of the light source 10 according to the white light brightness acquisition value, the position of the white light sensor 201 and the position of the light source 10, and comparing the white light brightness actual value with a white light brightness theoretical value of the light source 10 to generate a path of switch control signal; the number of the switching power supplies 40 is 1, and the switching power supplies 40 are turned on or off under the control of the switching control signal, so that the white luminance of the light source 10 is stabilized within a set range around the theoretical value of the white luminance.
In the following, referring to fig. 4 and the specific embodiment of the present invention, the embodiment is described, specifically, in the embodiment, the white light sensor 201 collects the white light brightness of the light source 10, and converts the brightness signal into a digital signal in a standard format to generate a white light brightness collection value, and sends the white light brightness collection value to the data processor 30, the data processor 30 establishes a mapping relationship according to the position of the white light sensor 201 and the position of the light source 10, and further, generates a white light brightness actual value of the light source 10 according to the mapping relationship and the white light brightness collection value, and compares the white light brightness actual value with a white light brightness theoretical value of the light source 10 to generate a switch control signal, and further, the switch power supply 40 is turned on or off under the control of the switch control signal to stabilize the white light brightness of the light source 10 within a setting range near the white light brightness theoretical value, thereby, the brightness of the lamp is kept unchanged in different environments, and the natural light attenuation caused by long-time opening of the lamp is compensated.
It should be noted that, in this embodiment, the number of the switching power supplies 40 is 1, and corresponds to one path of the switching control signal, and the digital signal in the standard format may be an I2C signal, or may be a digital signal in another standard format.
Specifically, the white light brightness of the light source 10 can be adjusted by controlling the current, wherein the light source 10 can be an LED lamp or a non-LED lamp.
It should be understood that when the light source 10 is an LED lamp, the white brightness of the LED lamp changes when the external environment temperature changes, for example, when the external environment temperature decreases, the white brightness of the LED lamp becomes high, and when the external environment temperature increases, the white brightness of the LED lamp decreases.
Further, as shown in fig. 5, the light sensor 20 may be a colored light sensor 202.
The color light sensor 202 is configured to collect RGB three-color light brightness of the light source 10 to generate an RGB three-color light brightness collection value; the data processor 30 is specifically configured to: generating an actual RGB three-color light brightness value of the light source 10 according to the RGB three-color light brightness acquisition value, the position of the color light sensor 202, and the position of the light source 10, and comparing the actual RGB three-color light brightness value with a theoretical RGB three-color light brightness value of the light source 10 to generate a three-way switch control signal; the number of the switching power supplies 40 is 3, the 3 switching power supplies 40 correspond to the three switching control signals one by one, and the switching power supplies 40 are turned on or off under the control of the switching control signals, so that the brightness of the RGB three-color light of the light source 10 is stabilized in a set range near the theoretical value of the brightness of the RGB three-color light.
In the following, referring to fig. 5 and the embodiment of the present invention, the embodiment is described, specifically, in the embodiment, the color light sensor 202 collects the RGB three-color light brightness of the light source 10, and converts the brightness signal into a digital signal in a standard format to generate an RGB three-color light brightness collection value, and sends the RGB three-color light brightness collection value to the data processor 30, the data processor 30 establishes a mapping relationship according to the position of the color light sensor 202 and the position of the light source 10, and further, generates an actual RGB three-color light brightness value of the light source 10 according to the mapping relationship and the RGB three-color light brightness collection value, and compares the actual RGB three-color light brightness value with the theoretical RGB three-color light brightness value of the light source 10 to generate a three-way switch control signal, and further, the switch power supply 40 is turned on or turned off under the control of the switch control signal to stabilize the RGB three-color light brightness of the light source 10 within, therefore, the brightness of the lamp in different environments is kept unchanged, and the natural light attenuation caused by long-time opening of the lamp is compensated.
It should be noted that, since the color light feedback is to feed back RGB three-color ratio, the color temperature, the color rendering index Ra and the brightness of the color light can be constantly adjusted by controlling the on or off of the multi-way switching power supply 40, that is, in this embodiment, the number of the switching power supplies 40 is 3, and the switching power supplies correspond to three-way switching control signals one by one, and the digital signal in the standard format may be an I2C signal, or may be a digital signal in another standard format.
Specifically, the RGB three-color light brightness of the light source 10 can be adjusted by controlling the current, wherein the light source 10 can be an LED lamp or a non-LED lamp.
It should be understood that when the light source 10 is an LED lamp, when the external environment temperature changes, the RGB three-color light brightness of the LED lamp also changes, for example, when the external environment temperature decreases, the RGB three-color light brightness of the LED lamp becomes high, and when the external environment temperature increases, the RGB three-color light brightness of the LED lamp decreases.
Further, as shown in fig. 6, the data processor 30 may include: an operator 301 and a signal generator 302.
The arithmetic unit 301 is connected to the light sensor 20, and the arithmetic unit 301 is configured to generate a luminance actual value according to the luminance collection value, the position of the light sensor 20, and the position of the light source 10; the signal generator 302 is connected to the operator 301 and the switching power supply 40, respectively, and the signal generator 302 is configured to compare the actual luminance value with the theoretical luminance value and generate the switching control signal.
Specifically, in this embodiment, the data processor 30 establishes a mapping relationship according to the position of the light sensor 20 and the position of the light source 10 through the arithmetic unit 301, further generates a luminance actual value according to the luminance collection value and the mapping relationship, compares the luminance actual value with a luminance theoretical value through the signal generator 302, generates a switching control signal, and controls the switching power supply to be turned on or off according to the switching control signal, so that the luminance of the light source is stabilized in a set range near the luminance theoretical value, thereby ensuring that the luminance of the lamp in different environments remains unchanged, and performing luminosity compensation on natural light attenuation caused by long-time turning on of the lamp.
Further, as shown in fig. 6, the signal generator 302 may include: a comparator 3021 and a regulator 3022.
The comparator 3021 is connected to the arithmetic unit 301, and the comparator 3021 is configured to compare the actual luminance value with the theoretical luminance value to generate a luminance difference value; a regulator 3022 is connected to the comparator 3021 and the switching power supply 40, respectively, and the regulator 3022 is configured to generate a switching control signal according to the luminance difference value.
Specifically, in this embodiment, the signal generator 302 compares the luminance actual value with the luminance theoretical value by the comparator 3021 to generate a luminance difference value, and generates a switching control signal according to the luminance difference value by the regulator 3022 to control the switching power supply 40 to be turned on or off.
For example, when the brightness difference is greater than the preset value, the switch control signal is generated as an on signal to control the switching power supply 40 to be turned on, and when the brightness difference is less than the preset value, the switch control signal is generated as an off signal to control the switching power supply 40 to be turned off, so that the brightness of the light source 10 is stabilized within a set range near the theoretical brightness value, and thus, the brightness of the lamp in different environments is ensured to be kept unchanged.
Further, the regulator 3022 may be a proportional integral derivative regulator.
That is, in this embodiment, the brightness difference value may be adjusted by the pid controller to establish a closed-loop transfer function, and then, the switching control signal is generated to control the switching power supply 40 to be turned on or off, so that the brightness of the light source 10 is stabilized within a set range around the theoretical brightness value.
Further, as shown in fig. 6, the control device 100 of the luminaire further includes: a light switch 50.
The lamp switch 50 is connected to the switching power supply 40, and the lamp switch 50 is used to turn on or off the power supply of the switching power supply 40.
Specifically, in this embodiment, the power supply of the switching power supply 40 is controlled to be turned on and off by controlling the lamp switch 50, so as to control the turning on and off of the lamp.
Further, as shown in fig. 6, the control device 100 of the luminaire further includes: a power supply 60.
The power supply 60 is connected to the lamp switch 50, and the power supply 60 is used for supplying power to the switching power supply 40.
Specifically, in this embodiment, the power supply 60 supplies power to the switching power supply 40 when the lamp switch 50 is turned on.
Based on the same conception, the utility model also provides a lamps and lanterns that correspond with the controlling means of aforementioned lamps and lanterns.
Specifically, as shown in fig. 7, according to the utility model provides a lamp 1000, including the controlling means 100 of the aforesaid lamps and lanterns, the utility model discloses a lamp 1000 can realize the concrete mode with the controlling means 100 one-to-one of the aforesaid lamps and lanterns.
According to the utility model discloses a lamps and lanterns have adopted the controlling means of aforementioned lamps and lanterns, can switch on or turn-off according to on-off control signal control switching power to make the luminance of light source stabilize near the theoretical value of luminance and set for the within range, thereby, ensure that lamps and lanterns luminance under different environment keeps unchangeable, and carry out luminosity compensation to the natural light decay that leads to because of lamps and lanterns open for a long time.
Because the utility model discloses the lamps and lanterns introduced, for implementing the aforesaid the utility model discloses a lamps and lanterns that controlling means adopted of lamps and lanterns so based on the aforesaid the utility model discloses the device introduced, the affiliated personnel in the field can know the concrete structure and the deformation of this lamps and lanterns, so no longer describe here. The lamp adopted by the above device of the utility model belongs to the protection scope of the utility model.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A control device for a light fixture, comprising:
a light source;
the light sensor is used for acquiring the brightness of the light source and generating a brightness acquisition value;
the data processor is connected with the light sensor and used for generating a brightness actual value of the light source according to the brightness acquisition value, the position of the light sensor and the position of the light source, comparing the brightness actual value with a brightness theoretical value of the light source and generating a switch control signal;
and the switching power supply is respectively connected with the light source and the data processor, and is switched on or switched off under the control of the switching control signal, so that the brightness of the light source is stabilized in a set range near the theoretical brightness value.
2. The control device of claim 1, wherein the switch control signal is a pulse width modulated signal.
3. The control device of claim 1, wherein the light sensor is a white light sensor;
the white light sensor is used for: collecting the white light brightness of the light source to generate a white light brightness collection value;
the data processor is specifically configured to: generating a white light brightness actual value of the light source according to the white light brightness acquisition value, the position of the white light sensor and the position of the light source, and comparing the white light brightness actual value with a white light brightness theoretical value of the light source to generate a path of switch control signal;
the number of the switch power supplies is 1, and the switch power supplies are switched on or off under the control of the switch control signals, so that the white light brightness of the light source is stabilized in a set range near the theoretical value of the white light brightness.
4. The control device of claim 1, wherein the light sensor is a color light sensor;
the colored light sensor is used for: collecting RGB (red, green and blue) three-color brightness of the light source to generate an RGB three-color brightness collection value;
the data processor is specifically configured to: generating an actual RGB three-color light brightness value of the light source according to the RGB three-color light brightness acquisition value, the position of the color light sensor and the position of the light source, and comparing the actual RGB three-color light brightness value with an RGB three-color light brightness theoretical value of the light source to generate three paths of switch control signals;
the number of the switch power supplies is 3, the 3 switch power supplies correspond to the three switch control signals one by one, and the switch power supplies are switched on or switched off under the control of the switch control signals, so that the brightness of the RGB three-color light of the light source is stabilized in a set range near the theoretical value of the brightness of the RGB three-color light.
5. The control device according to claim 1, wherein the data processor comprises:
the arithmetic unit is connected with the light sensor and is used for generating the actual brightness value according to the brightness acquisition value, the position of the light sensor and the position of the light source;
and the signal generator is respectively connected with the arithmetic unit and the switching power supply and is used for comparing the actual brightness value with the theoretical brightness value to generate the switching control signal.
6. The control device according to claim 5, wherein the signal generator includes:
the comparator is connected with the arithmetic unit and used for comparing the actual brightness value with the theoretical brightness value to generate a brightness difference value;
and the regulator is respectively connected with the comparator and the switching power supply, and is used for generating the switching control signal according to the brightness difference value.
7. The control apparatus of claim 6, wherein the regulator is a proportional integral derivative regulator.
8. The control device according to claim 1, characterized by further comprising:
and the lamp switch is connected with the switching power supply and used for switching on or switching off the power supply of the switching power supply.
9. The control device according to claim 1, characterized by further comprising:
and the power supply is connected with the lamp switch and used for supplying power to the switch power supply.
10. A light fixture, comprising: control device for a luminaire according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921399426.3U CN210840156U (en) | 2019-08-23 | 2019-08-23 | Lamp and control device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921399426.3U CN210840156U (en) | 2019-08-23 | 2019-08-23 | Lamp and control device thereof |
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Address after: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee after: BYD Semiconductor Co.,Ltd. Address before: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN BYD MICROELECTRONICS Co.,Ltd. Address after: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee after: BYD Semiconductor Co.,Ltd. Address before: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee before: BYD Semiconductor Co.,Ltd. |