CN106793407B - Method and device for adjusting ambient brightness - Google Patents
Method and device for adjusting ambient brightness Download PDFInfo
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- CN106793407B CN106793407B CN201611238377.6A CN201611238377A CN106793407B CN 106793407 B CN106793407 B CN 106793407B CN 201611238377 A CN201611238377 A CN 201611238377A CN 106793407 B CN106793407 B CN 106793407B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/16—Controlling the light source by timing means
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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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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention provides a method and a device for adjusting ambient brightness, wherein the method comprises the following steps: according to the data acquisition period, acquiring and acquiring the ambient brightness data, storing the ambient brightness data in a queue, judging whether the number of the ambient brightness data larger than a preset upper limit value in the queue is larger than half of a preset length, judging whether the number of the ambient brightness data smaller than a preset lower limit value in the queue is larger than half of the preset length, acquiring a judgment result, and triggering the operation of adjusting the ambient brightness according to the judgment result. The method for adjusting the ambient brightness improves the accuracy of the judgment result of the ambient brightness and improves the adjusting effect of adjusting the ambient brightness.
Description
Technical Field
The present invention relates to the field of lighting technologies, and in particular, to a method and an apparatus for adjusting ambient brightness.
Background
The illumination tool is typically operated at a given power. However, when the ambient brightness is not too dark, a portion of the light emitted from the illumination means is redundant to the environment, which results in wasted power, and too high ambient brightness may cause injury to the human eye. When the environment is dark, illumination with higher power is required, thereby improving the ambient brightness. Therefore, it has become an important issue for the lighting fixture to have a function of adjusting the luminous intensity according to the ambient brightness.
Currently, for illumination tools with adjustable brightness, a photosensitive integrated circuit (integrated circuit, abbreviated as IC) is generally used to collect ambient brightness data, and the brightness of the environment is determined by processing all the ambient brightness data, so that the power of the illumination tool is adjusted according to the brightness of the environment.
However, with the data collected by the photo-sensitive IC, burrs may occur. Judging whether to adjust the power of the lighting tool by utilizing the environment brightness data comprising burrs can cause inaccurate judgment results and affect the adjustment effect of the lighting tool.
Disclosure of Invention
The invention provides a method and a device for adjusting ambient brightness, which can improve the accuracy of the judgment result of the ambient brightness and the adjustment effect of adjusting the ambient brightness.
The invention provides a method for adjusting ambient brightness, which comprises the following steps:
acquiring and obtaining ambient brightness data according to a data acquisition period;
storing the ambient brightness data in a queue; the length of the queue is a preset length;
judging whether the number of the environment brightness data which are larger than a preset upper limit value in the queue is larger than half of the preset length, and judging whether the number of the environment brightness data which are smaller than a preset lower limit value in the queue is larger than half of the preset length, so as to obtain a judging result; the preset upper limit value is larger than the preset lower limit value;
and triggering and adjusting the environment brightness according to the judging result.
Optionally, the triggering the operation of adjusting the ambient brightness according to the judgment result includes:
if the judgment result is that the number of the environmental brightness data which is larger than the preset upper limit value in the queue is larger than half of the preset length, triggering the operation of reducing the environmental brightness;
and if the judgment result is that the number of the environment brightness data smaller than the preset lower limit value in the queue is larger than half of the preset length, triggering the operation of improving the environment brightness.
Optionally, storing the ambient brightness data in a queue includes:
and according to the data acquisition period, updating the environmental brightness data acquired by the last acquisition into the queue by adopting a first-in first-out principle.
Optionally, after updating the environmental brightness data acquired by the last acquisition into the queue according to the data acquisition period by adopting a first-in first-out principle, the method further includes:
and judging whether the update times of the queue are larger than a preset threshold value.
Optionally, the preset length is a positive odd number.
The invention provides an adjusting device of environment brightness, comprising:
the acquisition module is used for acquiring environmental brightness data according to a data acquisition period;
the processing module is used for storing the ambient brightness data in a queue; the length of the queue is a preset length; judging whether the number of the environment brightness data which are larger than a preset upper limit value in the queue is larger than half of the preset length, and judging whether the number of the environment brightness data which are smaller than a preset lower limit value in the queue is larger than half of the preset length, so as to obtain a judging result; the preset upper limit value is larger than the preset lower limit value; and triggering and adjusting the environment brightness according to the judging result.
Optionally, the processing module is specifically configured to:
if the judgment result is that the number of the environmental brightness data which is larger than the preset upper limit value in the queue is larger than half of the preset length, triggering the operation of reducing the environmental brightness;
and if the judgment result is that the number of the environment brightness data smaller than the preset lower limit value in the queue is larger than half of the preset length, triggering the operation of improving the environment brightness.
Optionally, the processing module is specifically configured to:
and according to the data acquisition period, updating the environmental brightness data acquired by the last acquisition into the queue by adopting a first-in first-out principle.
Optionally, the processing module is further configured to:
and judging whether the update times of the queue are larger than a preset threshold value.
Optionally, the preset length is a positive odd number.
The invention provides a method and a device for adjusting the ambient brightness, which are used for omitting the influence of burr-free data on the accuracy of the judgment result of the ambient brightness by judging the number of the ambient brightness data which is larger than a preset upper limit value or smaller than a preset lower limit value in a queue and comparing the number with half of a preset length, so that the accuracy of the judgment result of the ambient brightness is improved, and the adjustment effect of adjusting the ambient brightness according to the judgment result is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a flowchart of a method for adjusting ambient brightness according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an adjusting device for environmental brightness according to an embodiment of the present invention;
fig. 3 is a circuit diagram of an adjusting device for environmental brightness according to an embodiment of the invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a flowchart of a method for adjusting ambient brightness according to an embodiment of the present invention. As shown in fig. 1, in the method for adjusting ambient brightness according to the present embodiment, the execution body may be an ambient brightness adjusting device, and the ambient brightness adjusting device may be applied to a lighting tool. As shown in fig. 1, the method for adjusting the ambient brightness provided in this embodiment may include:
and step 101, acquiring and obtaining the ambient brightness data according to a data acquisition period.
In this embodiment, specific components for acquiring the environmental brightness data are not particularly limited, and any existing components, chips, circuits, etc. for acquiring the environmental brightness data may be used. For example: ambient light data may be collected using a photosensitive IC.
In this embodiment, the specific implementation manner of the ambient brightness data is not particularly limited, and any existing ambient brightness data may be used. For example: the ambient brightness data may be a current value of the photo-sensitive IC.
In this embodiment, specific values of the data acquisition period are not particularly limited, and are set as needed.
The length of the queue is a preset length.
Specifically, the ambient brightness data are stored in the queue, and the brightness condition of the current ambient brightness can be determined by analyzing and processing the ambient brightness data with preset lengths in the queue.
In this embodiment, specific values of the preset length are not particularly limited, and are set as needed.
Optionally, the preset length is a positive odd number.
And 103, judging whether the number of the environment brightness data in the queue larger than the preset upper limit value is larger than half of the preset length, and judging whether the number of the environment brightness data in the queue smaller than the preset lower limit value is larger than half of the preset length, so as to obtain a judging result.
Wherein the preset upper limit value is greater than the preset lower limit value.
Specifically, the preset upper limit value is used for indicating the maximum value of the ambient brightness in the normal range. The preset lower limit value is used for indicating the minimum value of the ambient brightness in the normal range. The determination result may indicate the brightness level of the current ambient brightness. If the number of the environmental brightness data in the queue larger than the preset upper limit value is larger than half of the preset length as a result of the judgment, the current environmental brightness can be considered to be too bright. If the judgment result is that the number of the environmental brightness data smaller than the preset lower limit value in the queue is larger than half of the preset length, the current environmental brightness can be considered to be too dark. Other judging results can consider that the current ambient brightness is in a normal range.
It can be seen that, in this embodiment, for the processing of the ambient brightness data in the queue, the number of the ambient brightness data in the queue that is greater than the preset upper limit value or less than the preset lower limit value is determined, and then the number is compared with half of the preset length, so that the brightness degree of the current ambient brightness can be determined. Since light is a process that can be kept constant or gradually changed for a period of time while light collection is performed, particles that do not produce brightness or particles that produce strong brightness belong to a few particles that trigger a drastic change in ambient brightness data, thus producing glitch data. The number of the burr data is small, and thus, the duty ratio of the number of the burr data in the queue is small. In this embodiment, the number of each group is obtained by comparing the ambient brightness data with the preset upper limit value and the preset lower limit value, so that the influence of the burr data on the ambient brightness judgment result can be avoided, and the accuracy of the ambient brightness judgment result is further improved.
In this embodiment, specific numerical values of the preset upper limit value and the preset lower limit value are not particularly limited, and are set as needed.
And 104, triggering the operation of adjusting the ambient brightness according to the judgment result.
The specific implementation of the operation for adjusting the ambient brightness in this embodiment is not particularly limited. For example: the operation of adjusting the ambient brightness may include: increasing power, decreasing power, starting a backup lamp, stopping a backup lamp, etc.
Therefore, according to the method for adjusting the ambient brightness, the influence of the burr-free data on the accuracy of the judgment result of the ambient brightness can be ignored by judging the number of the ambient brightness data which is larger than the preset upper limit value or smaller than the preset lower limit value in the queue and comparing the number with half of the preset length, the accuracy of the judgment result of the ambient brightness is improved, and the adjustment effect of adjusting the ambient brightness according to the judgment result is further improved.
Alternatively, as a specific implementation of step 104,
and if the judgment result is that the number of the environmental brightness data in the queue which is larger than the preset upper limit value is larger than half of the preset length, triggering the operation of reducing the environmental brightness.
And if the judgment result is that the number of the environmental brightness data smaller than the preset lower limit value in the queue is larger than half of the preset length, triggering the operation of improving the environmental brightness.
Specific numerical values will be described in detail below.
Assume that: the preset length is 9, the preset upper limit value is 60, and the preset lower limit value is 40. The acquired ambient brightness data are 24, 21, 72, 22, 25, 77, 20, 55 and 23 respectively. These ambient light data are stored in a queue.
It can be determined that the number of ambient brightness data in the queue greater than the preset upper limit value (60) is 2 and less than half the preset length (9). The ambient brightness data is specifically 72, 77. The number of ambient brightness data in the queue is 6, which is greater than half the preset length. The ambient brightness data are specifically 24, 21, 22, 25, 20, 23.
Therefore, the judgment result is that the number of the environmental brightness data smaller than the preset lower limit value in the queue is larger than half of the preset length, and the judgment result indicates that the current environmental brightness is too dark. And triggering the operation of improving the environment brightness according to the judging result.
Optionally, step 102, storing the ambient brightness data in the queue may include:
and according to the data acquisition period, updating the environmental brightness data acquired by the last acquisition into a queue by adopting a first-in first-out principle.
Specifically, when the environmental brightness data acquired last time is acquired according to the data acquisition period, the data needs to be updated to the queue. According to the first-in first-out principle, the data is inserted into the last bit of the queue, and the earliest acquired ambient brightness data is removed from the queue. Furthermore, the brightness degree of the current environment brightness can be obtained by processing the environment brightness data in the updated queue.
Optionally, after updating the environmental brightness data acquired by the last acquisition into the queue according to the data acquisition period by adopting a first-in first-out principle, the method may further include:
and judging whether the update times of the queue are larger than a preset threshold value.
In particular, since the light is a process that can be maintained for a period of time or gradually changed while the light collection is performed. Therefore, by setting the preset threshold, the operation frequency for judging the ambient brightness can be flexibly adjusted. And if the update times of the queue are greater than a preset threshold value, executing the operation of processing the queue to obtain a judgment result. If the update times of the queue are smaller than the preset threshold, the environment brightness data in the queue are not processed, frequent judgment is not needed in a short period, and the judgment efficiency of the environment brightness is improved.
The embodiment provides a method for adjusting ambient brightness, which comprises the following steps: according to the data acquisition period, acquiring and acquiring the ambient brightness data, storing the ambient brightness data in a queue, judging whether the number of the ambient brightness data larger than a preset upper limit value in the queue is larger than half of a preset length, judging whether the number of the ambient brightness data smaller than a preset lower limit value in the queue is larger than half of the preset length, acquiring a judgment result, and triggering the operation of adjusting the ambient brightness according to the judgment result. According to the method for adjusting the ambient brightness, provided by the embodiment, the influence of the burr-free data on the accuracy of the judgment result of the ambient brightness can be ignored by judging the number of the ambient brightness data which is larger than the preset upper limit value or smaller than the preset lower limit value in the queue and comparing the number with half of the preset length, the accuracy of the judgment result of the ambient brightness is improved, and the adjustment effect of adjusting the ambient brightness according to the judgment result is further improved.
Fig. 2 is a schematic structural diagram of an adjusting device for environmental brightness according to an embodiment of the invention. As shown in fig. 2, the device for adjusting ambient brightness provided in this embodiment may include:
the acquisition module 11 is used for acquiring and acquiring the ambient brightness data according to the data acquisition period.
A processing module 12 for storing the ambient brightness data in a queue. The length of the queue is a preset length. Judging whether the number of the environment brightness data which is larger than the preset upper limit value in the queue is larger than half of the preset length, and judging whether the number of the environment brightness data which is smaller than the preset lower limit value in the queue is larger than half of the preset length, so as to obtain a judging result. The preset upper limit value is greater than the preset lower limit value. And triggering and adjusting the environment brightness according to the judging result.
Optionally, the processing module 12 is specifically configured to:
and if the judgment result is that the number of the environmental brightness data in the queue which is larger than the preset upper limit value is larger than half of the preset length, triggering the operation of reducing the environmental brightness.
And if the judgment result is that the number of the environmental brightness data smaller than the preset lower limit value in the queue is larger than half of the preset length, triggering the operation of improving the environmental brightness.
Optionally, the processing module 12 is specifically configured to:
and according to the data acquisition period, updating the environmental brightness data acquired by the last acquisition into a queue by adopting a first-in first-out principle.
Optionally, the processing module 12 is further configured to:
and judging whether the update times of the queue are larger than a preset threshold value.
Optionally, the preset length is a positive odd number.
It should be noted that, the specific implementation manner of the acquisition module 11 and the processing module 12 is not particularly limited in this embodiment, and any existing components, chips, circuits, and devices with corresponding functions may be used.
Alternatively, the acquisition module 11 may be a photo-sensitive IC or a photo-resistor.
Optionally, the acquisition module 11 and the processing module 12 may be electrically connected through a two-wire serial bus (Inter-Integrated Circuit, I2C for short) and/or a universal asynchronous receiver Transmitter (Universal Asynchronous Receiver/Transmitter, UART for short) interface on the processing module 12.
The following describes in detail the device for adjusting ambient brightness according to the present embodiment, taking a specific circuit as an example. The specific values therein are merely examples.
Fig. 3 is a circuit diagram of an adjusting device for environmental brightness according to an embodiment of the invention. As shown in fig. 3, the acquisition module is specifically a photosensitive IC21, and the processing module is specifically a central processing unit (Central Processing Unit, abbreviated as CPU) 22. The photosensitive IC21 and the CPU22 are electrically connected through I2C and UART interfaces on the CPU 22. The photo-sensitive IC21 has 6 pins VDD, GND, NC, SDA, SCL, INT-respectively. VDD is a dc power input pin of the photo-sensitive IC21, the photo-sensitive IC21 transmits a clock signal between the SCL pin and the CPU22, and the photo-sensitive IC21 transmits data between the SDA pin and the CPU 22. In fig. 3, C5 and C6 are used to filter alternating current. R1 and R2 are used as pull-up resistors.
In fig. 3, the photosensitive IC21 is used to perform the functions of the acquisition module described above, and the CPU22 is used to perform the functions of the processing module described above.
The environmental brightness adjusting device provided in this embodiment is used to execute the environmental brightness adjusting method provided in the method embodiment shown in fig. 1, and the technical principle and the technical effect are similar, and are not repeated here.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the method embodiments described above may be performed by hardware associated with program instructions. The foregoing program may be stored in a computer readable storage medium. The program, when executed, performs steps including the method embodiments described above; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (9)
1. The method for adjusting the ambient brightness is characterized by comprising the following steps:
acquiring and obtaining ambient brightness data according to a data acquisition period;
storing the ambient brightness data in a queue; the length of the queue is a preset length;
judging whether the number of the environment brightness data which are larger than a preset upper limit value in the queue is larger than half of the preset length, and judging whether the number of the environment brightness data which are smaller than a preset lower limit value in the queue is larger than half of the preset length, so as to obtain a judging result; the preset upper limit value is larger than the preset lower limit value;
triggering and adjusting the environment brightness according to the judging result;
the operation of adjusting the ambient brightness is triggered according to the judging result, and the operation comprises the following steps:
if the judgment result is that the number of the environmental brightness data which is larger than the preset upper limit value in the queue is larger than half of the preset length, triggering the operation of reducing the environmental brightness;
and if the judgment result is that the number of the environment brightness data smaller than the preset lower limit value in the queue is larger than half of the preset length, triggering the operation of improving the environment brightness.
2. The method of claim 1, wherein storing the ambient brightness data in a queue comprises:
and according to the data acquisition period, updating the environmental brightness data acquired by the last acquisition into the queue by adopting a first-in first-out principle.
3. The method of claim 2, wherein after updating the ambient brightness data acquired by the last acquisition into the queue using a first-in first-out principle according to the data acquisition period, the method further comprises:
and judging whether the update times of the queue are larger than a preset threshold value.
4. A method according to any one of claims 1 to 3, wherein the predetermined length is an odd positive number.
5. An apparatus for adjusting ambient brightness, comprising:
the acquisition module is used for acquiring environmental brightness data according to a data acquisition period;
the processing module is used for storing the ambient brightness data in a queue; the length of the queue is a preset length; judging whether the number of the environment brightness data which are larger than a preset upper limit value in the queue is larger than half of the preset length, and judging whether the number of the environment brightness data which are smaller than a preset lower limit value in the queue is larger than half of the preset length, so as to obtain a judging result; the preset upper limit value is larger than the preset lower limit value; triggering and adjusting the environment brightness according to the judging result;
the processing module is specifically configured to:
if the judgment result is that the number of the environmental brightness data which is larger than the preset upper limit value in the queue is larger than half of the preset length, triggering the operation of reducing the environmental brightness;
and if the judgment result is that the number of the environment brightness data smaller than the preset lower limit value in the queue is larger than half of the preset length, triggering the operation of improving the environment brightness.
6. The apparatus of claim 5, wherein the processing module is specifically configured to:
and according to the data acquisition period, updating the environmental brightness data acquired by the last acquisition into the queue by adopting a first-in first-out principle.
7. The apparatus of claim 6, wherein the processing module is further configured to:
and judging whether the update times of the queue are larger than a preset threshold value.
8. The apparatus of any one of claims 5 to 7, wherein the predetermined length is an odd positive number.
9. The device of any one of claims 5 to 7, wherein the acquisition module is a light sensitive integrated circuit or a light sensitive resistor.
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