CN116390293B - Indoor illumination control system and method for building - Google Patents
Indoor illumination control system and method for building Download PDFInfo
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- CN116390293B CN116390293B CN202310090754.XA CN202310090754A CN116390293B CN 116390293 B CN116390293 B CN 116390293B CN 202310090754 A CN202310090754 A CN 202310090754A CN 116390293 B CN116390293 B CN 116390293B
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- 238000005286 illumination Methods 0.000 title claims abstract description 254
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims description 23
- 230000000737 periodic effect Effects 0.000 claims description 17
- 238000013500 data storage Methods 0.000 claims description 8
- 235000021167 banquet Nutrition 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
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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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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
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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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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention belongs to the field of illumination control, and discloses a building indoor illumination control system and a method thereof: step S1: the external power supply is connected and respectively supplies power to the main controller, the driving control part and the communication part, and the LED power supply independently supplies power to the light source control part and at least one LED light source; step S2: the driving control part calls the first calibration information stored in the driving control part and simultaneously acquires the second calibration information in the main controller; step S3: a driving unit in the driving control section calculates a first time required to obtain the first calibration information while calculating a second time required for the driving unit to obtain the second calibration information, and calculates a time difference between the first time and the second time based on the first time and the second time; the invention solves the problem that the LED light source is prevented from being normally on and off after the external power supply is powered off and is powered on for the first time after the external power supply is powered off, and the LED light source is accurately controlled in real time.
Description
Technical Field
The invention belongs to the field of illumination control, and particularly relates to a building indoor illumination control system and a building indoor illumination control method.
Background
At present, along with the gradual increase of LED light sources in a room, particularly a multifunctional office hall or a banquet hall, a certain driving control component is needed for control in many cases, an external main control system sends illumination control information to illumination control equipment in real time, an illumination control part receives and sends the control information to a light source control part, the main control system and the illumination control part share an external power supply, the LED light source and the light source control part share an LED power supply, after the external power supply is powered off due to faults or other reasons, the light source control part cannot acquire the illumination information under the condition that the LED power supply is not powered off, and the LED light source can be in a continuously-on or continuously-off state; in addition, after the external power supply is electrified again, the starting time periods of the lighting control part and the main control system are different, for example, the lighting control part can be started for a few seconds, the main control system needs tens of seconds or even a few minutes, so that the light source control part cannot acquire lighting information from the main control system during the normal working period from starting to finishing of starting of the main control system, and the LED light source can be in a state of continuous lighting or continuous extinguishing; if the light source is changed in real time during the important meeting or the important banquet performance in the room, the user is extremely poor in experience and even irreversible loss is caused to the user.
Disclosure of Invention
In order to better solve the problems, the invention provides a building indoor illumination control method, which comprises the following steps:
step S1: the external power supply is connected and respectively supplies power to the main controller, the driving control part and the communication part, and the LED power supply independently supplies power to the light source control part and at least one LED light source;
step S2: the driving control part calls the first calibration information stored in the driving control part and simultaneously acquires the second calibration information in the main controller;
step S3: a driving unit in the driving control section calculates a first time required to obtain the first calibration information while calculating a second time required for the driving unit to obtain the second calibration information, and calculates a time difference between the first time and the second time based on the first time and the second time;
the driving control part receives and stores first illumination information input by an external input device, receives a main control signal sent by the main controller, and converts the main control signal into second illumination information, and the driving control part determines to call the first illumination information or receive the second illumination information when the external power supply is powered off and powered on again according to the time difference;
step S4: the drive control section transmits the first illumination information or the second illumination information to the communication section;
step S5: the communication section receives the first illumination information or the second illumination information as illumination information, and transmits the illumination information to a light source control section that illuminates the at least one LED light source based on the illumination information.
As a preferable mode of the present invention, in the step S1, an external power supply supplies power to the main controller, the drive control section, and the communication section through a first power supply, a second power supply, and a third power supply, respectively;
in the step S2, the data content of the first calibration information and the second calibration information is the same.
As a preferable embodiment of the present invention, in the step S3, the driving control unit includes a first input unit, a second input unit, and a data memory, the data memory receives and stores the first illumination information input by the external input device through the first input unit, and the driving unit receives the main control signal of the main controller through the second input unit.
As a preferable mode of the present invention, in the step S3, the driving unit includes a first time unit that acquires the first time based on the first calibration information, a second time unit that acquires the second time based on the second calibration information, and a time difference acquisition unit that compares the first time and the second time to obtain the time difference.
As a preferable embodiment of the present invention, in the step S3, the communication unit includes a capacitor and a data buffer unit, the communication unit detects a power supply state of the external power source,
when the external power supply supplies power normally, the third power supply charges the capacitor, the data caching part caches the periodic data of N periods to obtain cached data, the periodic data comprises illumination information, the cached data is real-time periodic data transmitted in real time and N-1 periodic data before the real-time periodic data, and N is an integer greater than or equal to 10;
when the external power supply is powered off, the LED power supply continues to supply power to the light source control part and the at least one LED light source, the at least one LED light source keeps illumination, the capacitor supplies power to the communication part, the communication part sends the cache data to the light source control part, and the light source control part receives the cache data and controls the at least one LED light source based on the cache data;
when the external power supply is powered on for the first time after power off:
the driving unit prevents the normally-off or normally-on illumination control information sent by the driving control part from being sent to the communication part while the driving unit is electrified for the first time;
when the time difference is greater than a first threshold value, the driving unit selects the first illumination information or the second illumination information corresponding to the smaller of the first time and the second time as third illumination information, and the light source control part controls the at least one LED light source according to the third illumination information;
when the time difference is smaller than the first threshold value, the light source control part uses the buffer data to perform illumination control on a light source, and when the driving unit detects the input of the main control signal, performs illumination control by using illumination information corresponding to the main control signal.
As a preferable embodiment of the present invention, the illumination time of the N period data stored in the cache data is greater than or equal to the greater of the first time and the second time.
As a preferable mode of the present invention, when the external power supply is powered on for the first time after being powered off, the driving control section detects an input of the master control signal when the smaller one corresponds to the first illumination information and the driving unit converts the master control signal into the second illumination information as third illumination information when the second input section receives the master control signal when the time difference is larger than the first threshold; and when the smaller one corresponds to the second illumination information, the second illumination information is always used as the third illumination information.
The invention also provides a building indoor lighting control system, which is based on the building indoor lighting control method and comprises the following steps: the main controller is used for inputting main control information, converting the main control information into a main control signal and sending the main control signal to the driving control part;
the drive control part comprises a drive unit; the drive control section is configured to: invoking first calibration information stored internally, acquiring second calibration information in a main controller, calculating first time required for acquiring the first calibration information, calculating second time required for acquiring the second calibration information by the driving unit, and calculating time difference between the first time and the second time based on the first time and the second time; receiving and storing first illumination information input by an external input device, receiving a main control signal sent by the main controller, converting the main control signal into second illumination information, and sending the first illumination information or the second illumination information to the communication part; according to the time difference, when the external power supply is powered off and powered on again, the first illumination information is called or the second illumination information is received;
a communication section for receiving the first illumination information or the second illumination information as illumination information, and transmitting the illumination information to a light source control section;
and a light source control unit configured to control illumination of at least one LED light source based on the illumination information.
As a preferable embodiment of the present invention, the driving control part further includes a first input part, a second input part, and a data memory;
the data storage is used for receiving and storing first illumination information input by the external input device through the first input part;
the driving unit is used for receiving a main control signal of the main controller through the second input part and comprises a first time unit, a second time unit and a time difference acquisition part;
the driving unit is configured to: the first time unit acquires the first time according to the first calibration information, the second time unit acquires the second time according to the second calibration information, and the time difference acquisition part compares the first time and the second time to acquire the time difference;
the communication part comprises a capacitor and a data cache part and is also used for detecting the power supply state of the external power supply; the communication section is configured to: when the external power supply is powered normally, a third power supply charges the capacitor, the data caching part caches the periodic data of N periods to obtain cached data, the periodic data comprises illumination information, when the external power supply is powered off, the LED power supply continues to supply power to the light source control part and the at least one LED light source, the at least one LED light source keeps illumination, the capacitor supplies power to the communication part, and the cached data is sent to the light source control part;
the light source control part is used for controlling the illumination of the at least one LED light source based on the cache data.
As a preferable technical scheme of the present invention, the external power supply is electrically connected with a first power supply, a second power supply and a third power supply, the first power supply supplies power to the main controller, the second power supply supplies power to the drive control section, and the third power supply supplies power to the communication section.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, when an external power supply supplies power normally, the communication part is used for caching data which are N periods of periodic data into the data caching part in real time, the caching data are the next closest illumination information data, meanwhile, a capacitor in the communication part is charged through a third power supply, when the external power supply is powered off, the communication part is used for supplying power to the communication part through discharging the capacitor, the communication part is used for transmitting the stored caching data to the light source control part, and the light source control part is used for controlling illumination of at least one LED light source based on the caching data, so that the continuity, the instantaneity and the accuracy of illumination information of the light source control part are ensured; when the indoor illumination control system of the building starts to be electrified, normal illumination affecting lamplight is avoided by preventing normally-on or normally-off signals; calculating, by a drive control unit, a first time required for the drive control unit to acquire first illumination information and a time required for acquiring second illumination information based on first calibration information and second calibration information, and acquiring a smaller one of the first time and the second time and a time difference between the first time and the second time, wherein when the external power supply is powered on for the first time after power off, the drive unit selects the first illumination information or the shorter one of the second illumination information as third illumination information when the time difference is smaller than a first threshold; when the smaller one corresponds to the second illumination information, the second illumination information is always used as the third illumination information, and when the smaller one corresponds to the first illumination information, the driving control part detects the input of the main control signal, and when the second input part receives the main control signal, the driving unit takes the second illumination information as the third illumination information; because the first illumination information is read out from the data storage by the driving control part, and the second illumination information is obtained by converting the main control signal received by the driving unit from the main controller in real time, the real-time performance of the driving unit for obtaining the second illumination information is better and the efficiency is higher.
Drawings
FIG. 1 is a flow chart of a method of controlling indoor control of a building according to the present invention;
fig. 2 is a block diagram of a building indoor control system according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention provides a building indoor illumination control method, as shown in figure 1, comprising the following steps:
step S1: the external power supply is connected and respectively supplies power to the main controller, the driving control part and the communication part, and the LED power supply independently supplies power to the light source control part and at least one LED light source; in this step, the main controller, the drive control section and the communication section are respectively energized by an external power supply, the LED power supply energizes the light source control section and at least one LED light source, and the external power supply and the LED power supply are independent from each other;
step S2: the driving control part calls the first calibration information stored in the driving control part and simultaneously acquires the second calibration information in the main controller; in this step, the drive control section reads the first calibration information from an internal data memory, and simultaneously a main controller, which is a control system, which is an example, a computer, transmits the second calibration information to the drive control section;
step S3: a driving unit in the driving control section calculates a first time required to obtain the first calibration information while calculating a second time required for the driving unit to obtain the second calibration information, and calculates a time difference between the first time and the second time based on the first time and the second time;
specifically, in this step, the driving unit determines a time difference between the driving control unit and the main controller from the power supply to the start completion by calculating the first time, the second time, and the time difference, and when the time difference is greater than a first threshold, the start speed of the main controller is slower than the start speed of the driving control unit when the second time is greater than the first time, and when the first time is greater than the second time, the start speed of the main controller is faster than the start speed of the driving control unit; when the time difference is smaller than a first threshold, the starting speed of the main controller is not different from the starting speed of the driving control part, the first threshold is preferably greater than or equal to 5s and less than or equal to 10s, the first time and the second time are changed along with the using time and the loss of the driving control part and the main controller, wherein the driving unit preferably starts to work immediately after power supply.
The driving control part receives and stores first illumination information input by an external input device, receives a main control signal sent by the main controller, and converts the main control signal into second illumination information, and the driving control part determines to call the first illumination information or receive the second illumination information when the external power supply is powered off and powered on again according to the time difference; in this step, the external input device may be a storage medium, illustratively, the storage medium is a TF card or an SD card, the first illumination information is stored in a data memory of the driving control part, a master control signal sent by the main controller is real-time, the first illumination information is identical to the second illumination information in content, when the external power supply is powered off and powered on again, the driving control part calls the first illumination information when a start-up speed of the main controller is slower than the start-up speed of the driving control part, the driving control part calls the second illumination information when the start-up speed of the main controller is faster than the start-up speed of the driving control part, the light source control part executes the buffer data as illumination information when the start-up speed of the main controller is faster than the start-up speed of the driving control part or a phase difference is not large, the driving control part calls the second illumination information and sends to the light source control part when the driving control part detects a master control signal input, and the driving control part calls the second illumination information and the second illumination information is better in that the real-time is not obtained from the main controller because the first illumination information is read from the main control part and the second illumination information is higher than the main control part and the real-time is better in the transmission speed;
step S4: the drive control section transmits the first illumination information or the second illumination information to the communication section;
step S5: the communication section receives the first illumination information or the second illumination information as illumination information, and transmits the illumination information to a light source control section that illuminates the at least one LED light source based on the illumination information, wherein the illumination information includes: the light source control unit performs illumination control on the at least one LED light source based on the illumination information.
Further, in the step S1, the external power source supplies power to the main controller, the driving control part and the communication part through the first power source, the second power source and the third power source, respectively;
in the step S2, the data content of the first calibration information and the second calibration information are the same, specifically, the first calibration information and the second calibration information are set determined data frames, and the data frames are exemplified by the data frames with all data portions being "1" except for the frame head and the frame tail.
Further, in the step S3, the driving control portion includes a first input portion, a second input portion, and a data storage, where the data storage receives, through the first input portion, first illumination information input by the external input device and stores the first illumination information, the driving unit receives, through the second input portion, a main control signal of the main controller, and specifically, the first input portion may be a card slot of an SD card or an FT card, and the second input portion is a communication interface of the driving unit and the main controller.
Further, in the step S3, the driving unit includes a first time unit that obtains the first time according to the first calibration information, a second time unit that obtains the second time according to the second calibration information, and a time difference obtaining section that compares the first time and the second time to obtain the time difference.
Further, in the step S3, the communication section includes a capacitor and a data buffer section, the communication section detects a power supply state of the external power supply,
when the external power supply supplies power normally, the third power supply charges the capacitor, the data caching part caches the period data of N periods to obtain cache data, the period data comprises illumination information, the cache data is real-time period data transmitted in real time and N-1 period data before the real-time period data, N is an integer greater than or equal to 10, in the step, the N period data are changed continuously along with the time, and the N period data are closest to illumination information corresponding to illumination requirements in the subsequent time;
when the external power supply is powered off, the LED power supply continues to supply power to the light source control part and the at least one LED light source, the at least one LED light source keeps illumination, the capacitor supplies power to the communication part, the communication part sends the cache data to the light source control part, and the light source control part receives the cache data and controls the at least one LED light source based on the cache data; specifically, since the external power supply and the LED power supply are independent, the LED power supply is not affected, and the charging capacity of the capacitor can meet the requirement that the communication part sends the cache data to the light source control part; because the external power supply is powered off, the driving unit cannot send the first illumination information or the second illumination information to the light source control part, the LED light source cannot acquire control information through the light source control part, and because the cache data is the illumination information which corresponds to the illumination requirement after the power off, the light source control part controls the illumination of the LED light source through the cache data, and the illumination requirement in a certain time period after the power off of the external power supply can be met.
When the external power supply is powered on for the first time after power off:
when the time difference is greater than a first threshold value, the driving unit selects first illumination information or second illumination information corresponding to the smaller of the first time and the second time as third illumination information, and the light source control part controls the at least one LED light source according to the third illumination information;
when the time difference is smaller than a first threshold value, the light source control part uses the buffer data to control illumination of a light source, and when the driving unit detects input of the main control signal, uses second illumination information corresponding to the main control signal to control illumination.
Specifically, when the external power supply is powered on for the first time after being powered off, the driving unit needs to acquire the first illumination information or the second illumination information as soon as possible, so as to further meet the real-time control of the light source control part on the at least one LED light source, so that when the time difference is greater than a first threshold value, the driving unit selects the first illumination information or the second illumination information with shorter acquisition time as third illumination information; because the first illumination information is read from the data storage by the driving control part, the second illumination information is obtained by converting the main control signal received by the driving unit from the main controller in real time, and the real-time performance of the driving unit for obtaining the second illumination information is better and more efficient, when the time difference is smaller than a first threshold value, the first illumination information or the second illumination information needs to be obtained in a small time difference, and the light source control part obtains the second illumination information to control the illumination of the at least one LED light source through the driving unit.
Further, the lighting time of the N period data stored in the cache data is greater than or equal to the greater of the first time and the second time, specifically, the lighting time of the N period data stored in the cache data is greater than or equal to the greater of the first time and the second time, so that the external power supply can perform the lighting of the at least one LED light source in a cycle of the lighting time of the lighting source control portion being equal to or less than the lighting time, the driving control portion and the main controller can start to complete before the lighting of the at least one LED light source is completed based on the cache data by the light source control portion, so that the real-time performance of the lighting information of the light source control portion is ensured, and when the lighting time of the external power supply is greater than the lighting time by the lighting time of the lighting source control portion being the lighting time required by the lighting source control portion to perform each of the cache data.
Further, when the external power supply is powered on for the first time after being powered off, the driving unit prevents the normally-off or normally-on illumination control information sent by the driving control part from being sent to the communication part at the same time of the first power on, so that when at least one LED light source does not receive the first illumination information or the second illumination information, the normally-off or normally-on operation of the at least one LED light source is prevented, and the execution of the illumination information corresponding to the buffer data is not influenced; generally, when the power is turned on again, the light source control part receives an initialization lighting signal, such as a normally-closed or normally-off signal, sent by the driving control part, so that at least one LED light source performs normally-closed or normally-off;
when the time difference is larger than a first threshold value, the driving control part detects the input of the main control signal when the smaller one corresponds to the first illumination information, and the driving unit takes the second illumination information as third illumination information when the second input part receives the main control signal; when the smaller one corresponds to the second illumination information, the second illumination information is always used as the third illumination information, specifically, when the external power supply is powered on for the first time after being powered off, when the time difference is larger than a first threshold value, and when the smaller one corresponds to the first illumination information, the driving unit selects the first illumination information as the third illumination information, and because the driving unit obtains the second illumination information corresponding to the main control signal more efficiently than the first illumination information, the driving unit takes the second illumination information as the third illumination information when the second input part receives the main control signal, and when the smaller one corresponds to the second illumination information, the second illumination information is always used as the third illumination information;
when the time difference is smaller than the first threshold value, the light source control part uses the buffer data to perform illumination control on a light source, and when the driving unit detects the input of the main control signal, illumination information corresponding to the main control signal is used to perform illumination control, specifically, when the time difference is smaller than the first threshold value, the starting speeds of the main controller and the driving control part are not greatly different, and before the starting of the main controller is completed, the light source control part performs illumination control on the light source based on the buffer data, and when the driving control part detects the input of the main control signal, the main control signal is converted into the second illumination information, and the light source control part performs illumination control on the at least one LED light source based on the second illumination information.
The present invention also provides a building indoor lighting control system, as shown in fig. 2, the system comprising:
the main controller is used for inputting main control information, converting the main control information into a main control signal and sending the main control signal to the driving control part;
the drive control part comprises a drive unit; the drive control section is configured to: invoking first calibration information stored internally, acquiring second calibration information in a main controller, calculating first time required for acquiring the first calibration information, calculating second time required for acquiring the second calibration information by the driving unit, and calculating time difference between the first time and the second time based on the first time and the second time; receiving and storing first illumination information input by an external input device, receiving a main control signal sent by the main controller, converting the main control signal into second illumination information, and determining by the driving control part according to the time difference that the first illumination information is called or the second illumination information is received when the external power supply is powered off and powered on again;
the communication part is used for receiving the first illumination information or the second illumination information as illumination information and sending the illumination information to the light source control part;
and a light source control unit configured to control illumination of at least one LED light source based on the illumination information.
Further, the driving control part further comprises a first input part, a second input part and a data memory;
the data storage is used for receiving and storing first illumination information input by the external input device through the first input part;
the driving unit is used for receiving a main control signal of the main controller through the second input part and comprises a first time unit, a second time unit and a time difference acquisition part;
the driving unit is configured to: the first time unit acquires the first time according to the first calibration information, the second time unit acquires the second time according to the second calibration information, and the time difference acquisition part compares the first time and the second time to acquire the time difference;
the communication part comprises a capacitor and a data cache part and is also used for detecting the power supply state of the external power supply; the communication section is further configured to: when the external power supply is powered normally, the third power supply charges the capacitor, the data caching portion caches the periodic data of N periods to obtain cached data, the periodic data comprise illumination information, when the external power supply is powered off, the LED power supply continues to supply power to the light source control portion and the at least one LED light source, the at least one LED light source keeps illuminating, the capacitor supplies power to the communication portion, the communication portion sends the cached data to the light source control portion, and the light source control portion controls the at least one LED light source to illuminate based on the cached data.
Further, the external power supply is electrically connected with a first power supply, a second power supply and a third power supply respectively, the first power supply supplies power to the main controller, the second power supply supplies power to the driving control part, and the third power supply supplies power to the communication part.
In summary, when the external power supply supplies power normally, the communication part is used for caching the period data of N periods to the data caching part in real time, the caching data are the next closest illumination information data, meanwhile, the capacitor in the communication part is charged through the third power supply, when the external power supply is powered off, the communication part is used for supplying power to the communication part through discharging the capacitor, the communication part is used for sending the stored caching data to the light source control part, and the light source control part is used for controlling illumination of at least one LED light source based on the caching data, so that the continuity, the instantaneity and the accuracy of illumination information of the light source control part are ensured; when the indoor illumination control system of the building starts to be electrified, normal illumination affecting lamplight is avoided by preventing normally-on or normally-off signals; calculating, by a drive control unit, a first time required for the drive control unit to acquire first illumination information and a time required for acquiring second illumination information based on first calibration information and second calibration information, and acquiring a smaller one of the first time and the second time and a time difference between the first time and the second time, wherein when the external power supply is powered on for the first time after power off, the drive unit selects the first illumination information or the shorter one of the second illumination information as third illumination information when the time difference is smaller than a first threshold; when the smaller one corresponds to the second illumination information, the second illumination information is always used as the third illumination information, and when the smaller one corresponds to the first illumination information, the driving control part detects the input of the main control signal, and when the second input part receives the main control signal, the driving unit takes the second illumination information as the third illumination information; because the first illumination information is read out from the data storage by the driving control part, and the second illumination information is obtained by converting the main control signal received by the driving unit from the main controller in real time, the real-time performance of the driving unit for obtaining the second illumination information is better and the efficiency is higher.
The technical features of the above embodiments may be arbitrarily combined, and for brevity, all of the possible combinations of the technical features of the above embodiments are not described, however, they should be considered as the scope of the description of the present specification as long as there is no contradiction between the combinations of the technical features.
The foregoing examples have been presented to illustrate only a few embodiments of the invention and are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims. The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The indoor illumination control method for the building is characterized by comprising the following steps of:
step S1: the external power supply is connected and respectively supplies power to the main controller, the driving control part and the communication part, and the LED power supply independently supplies power to the light source control part and at least one LED light source;
step S2: the driving control part calls first calibration information stored in the driving control part and acquires second calibration information in the main controller at the same time;
step S3: a driving unit in the driving control section calculates a first time required to obtain the first calibration information while calculating a second time required for the driving unit to obtain the second calibration information, and calculates a time difference between the first time and the second time based on the first time and the second time;
the driving control part receives and stores first illumination information input by an external input device, receives a main control signal sent by the main controller, and converts the main control signal into second illumination information, and the driving control part determines to call the first illumination information or receive the second illumination information when the external power supply is powered off and powered on again according to the time difference;
step S4: the drive control section transmits the first illumination information or the second illumination information to the communication section;
step S5: the communication part receives the first illumination information or the second illumination information as illumination information and sends the illumination information to a light source control part, and the light source control part illuminates the at least one LED light source based on the illumination information;
the first illumination information and the second illumination information have the same content;
when the external power supply is powered on for the first time after power off: when the time difference is greater than a first threshold value, the driving unit selects first illumination information or second illumination information corresponding to the smaller of the first time and the second time as third illumination information, and the light source control part controls the at least one LED light source according to the third illumination information; when the time difference is smaller than a first threshold value, the light source control part uses the buffer data to perform illumination control on the light source, and when the driving unit detects the input of the main control signal, performs illumination control by using second illumination information corresponding to the main control signal.
2. A method for controlling indoor lighting in a building according to claim 1,
in the step S1, an external power supply supplies power to the main controller, the drive control section and the communication section through a first power supply, a second power supply and a third power supply, respectively;
in the step S2, the data content of the first calibration information and the second calibration information is the same.
3. The method according to claim 2, wherein in the step S3, the driving control unit includes a first input unit, a second input unit, and a data memory, the data memory receives and stores the first lighting information inputted by the external input device through the first input unit, and the driving unit receives the main control signal of the main controller through the second input unit.
4. The method according to claim 2, wherein in the step S3, the driving unit includes a first time unit that obtains the first time based on the first calibration information, a second time unit that obtains the second time based on the second calibration information, and a time difference obtaining section that compares the first time and the second time to obtain the time difference.
5. The method according to claim 2, wherein in the step S3, the communication unit includes a capacitor and a data buffer unit, the communication unit detects a power supply state of the external power source,
when the external power supply supplies power normally, the third power supply charges the capacitor, the data caching part caches the periodic data of N periods to obtain cached data, the periodic data comprises illumination information, the cached data is real-time periodic data transmitted in real time and N-1 periodic data before the real-time periodic data, and N is an integer greater than or equal to 10;
when the external power supply is powered off, the LED power supply continues to supply power to the light source control part and the at least one LED light source, the at least one LED light source keeps illumination, the capacitor supplies power to the communication part, the communication part sends the cache data to the light source control part, and the light source control part receives the cache data and controls the at least one LED light source based on the cache data;
when the external power supply is powered on for the first time after power off:
the driving unit prevents the normally-off or normally-on illumination control information sent by the driving control part from being sent to the communication part while the driving unit is electrified for the first time;
when the time difference is greater than a first threshold value, the driving unit selects the first illumination information or the second illumination information corresponding to the smaller of the first time and the second time as third illumination information, and the light source control part controls the at least one LED light source according to the third illumination information;
when the time difference is smaller than the first threshold value, the light source control part uses the buffer data to perform illumination control on a light source, and when the driving unit detects the input of the main control signal, performs illumination control by using illumination information corresponding to the main control signal.
6. The method according to claim 5, wherein the lighting time of the N period data stored in the buffer data is equal to or longer than the greater of the first time and the second time.
7. The method according to claim 5, wherein when the external power source is powered on for the first time after being powered off, the driving control section detects an input of the master control signal when the smaller one corresponds to the first illumination information in a case where the time difference is larger than the first threshold value, and the driving unit converts the master control signal into the second illumination information as third illumination information in a case where the second input section receives the master control signal; and when the smaller one corresponds to the second illumination information, the second illumination information is always used as the third illumination information.
8. A building indoor lighting control system based on the building indoor lighting control method according to any one of claims 1-7, comprising:
the main controller is used for inputting main control information, converting the main control information into a main control signal and sending the main control signal to the driving control part;
the drive control part comprises a drive unit; the drive control section is configured to: invoking first calibration information stored internally, acquiring second calibration information in a main controller, calculating first time required for acquiring the first calibration information, calculating second time required for acquiring the second calibration information by the driving unit, and calculating time difference between the first time and the second time based on the first time and the second time; receiving and storing first illumination information input by an external input device, receiving a main control signal sent by the main controller, converting the main control signal into second illumination information, and sending the first illumination information or the second illumination information to the communication part; according to the time difference, when the external power supply is powered off and powered on again, the first illumination information is called or the second illumination information is received;
a communication section for receiving the first illumination information or the second illumination information as illumination information, and transmitting the illumination information to a light source control section;
a light source control section for controlling illumination of at least one LED light source based on the illumination information;
the first illumination information and the second illumination information have the same content;
when the external power supply is powered on for the first time after power off: when the time difference is greater than a first threshold value, the driving unit selects first illumination information or second illumination information corresponding to the smaller of the first time and the second time as third illumination information, and the light source control part controls the at least one LED light source according to the third illumination information; when the time difference is smaller than a first threshold value, the light source control part uses the buffer data to perform illumination control on the light source, and when the driving unit detects the input of the main control signal, performs illumination control by using second illumination information corresponding to the main control signal.
9. A building interior lighting control system as set forth in claim 8, wherein,
the drive control part also comprises a first input part, a second input part and a data memory;
the data storage is used for receiving and storing first illumination information input by the external input device through the first input part;
the driving unit is used for receiving a main control signal of the main controller through the second input part and comprises a first time unit, a second time unit and a time difference acquisition part;
the driving unit is configured to: the first time unit acquires the first time according to the first calibration information, the second time unit acquires the second time according to the second calibration information, and the time difference acquisition part compares the first time and the second time to acquire the time difference;
the communication part comprises a capacitor and a data cache part and is also used for detecting the power supply state of the external power supply; the communication section is configured to: when the external power supply is powered normally, a third power supply charges the capacitor, the data caching part caches the periodic data of N periods to obtain cached data, the periodic data comprises illumination information, when the external power supply is powered off, the LED power supply continues to supply power to the light source control part and the at least one LED light source, the at least one LED light source keeps illumination, the capacitor supplies power to the communication part, and the cached data is sent to the light source control part;
the light source control part is used for controlling the illumination of the at least one LED light source based on the cache data.
10. A building indoor lighting control system according to claim 8, wherein the external power supply is electrically connected to a first power supply, a second power supply and a third power supply, respectively, the first power supply supplying power to the main controller, the second power supply supplying power to the drive control section, and the third power supply supplying power to the communication section.
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