CN111148304A - Multi-mode dimming control system based on DALI protocol - Google Patents
Multi-mode dimming control system based on DALI protocol Download PDFInfo
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- CN111148304A CN111148304A CN201911387538.1A CN201911387538A CN111148304A CN 111148304 A CN111148304 A CN 111148304A CN 201911387538 A CN201911387538 A CN 201911387538A CN 111148304 A CN111148304 A CN 111148304A
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Abstract
The invention belongs to the lighting system dimming technology, and provides a DALI protocol-based multi-mode dimming control system, which gets rid of the limitation of dimming through a PC, provides multiple dimming modes, and can control more LEDs, and comprises the following steps: the device comprises an input module (1), a control module (2) and an output module (3); the input module (1) receives the dimming control mode, the LED serial number, the LED brightness adjusting signal and the ambient light signal and transmits the dimming control mode, the LED serial number, the LED brightness adjusting signal and the ambient light signal to the control module, and the control module (2) completes the collection and calculation of the dimming control mode, the LED serial number, the LED brightness adjusting signal and the ambient light signal from the input module information and sends a control instruction to the output module; the output module (3) completes the receiving and execution work of the control instruction.
Description
Technical Field
The invention belongs to the dimming technology of a lighting system, and relates to improvement of a DALI dimming control system.
Background
As shown in fig. 1, DALI is a digital addressable lighting control interface standard, defines relevant specifications for communication between various lighting control modules, and has the advantages of universality, simplicity, and the like. A typical DALI dimming control system on the market supports a master controller and a slave controller of a DALI protocol through serial port operation of a PC (personal computer), so that the dimming function of an LED is realized, the DALI dimming control system in the form depends on the PC for dimming control, the number of controllable LEDs is small, and the dimming mode is single.
Disclosure of Invention
The invention aims to provide a DALI protocol-based multi-mode dimming control system, which gets rid of the limitation of dimming through a PC, provides multiple dimming modes and can control more LEDs.
The technical scheme of the invention is as follows:
a DALI protocol based multi-mode dimming control system, comprising:
the device comprises an input module 1, a control module 2 and an output module 3;
the input module 1 receives the dimming control mode, the LED serial number, the LED brightness adjusting signal and the ambient light signal and transmits the signals to the control module,
the control module 2 is used for completing the collection and calculation of a dimming control mode, an LED serial number, an LED brightness adjusting signal and an environment light signal from the information of the input module and sending a control instruction to the output module;
the output module 3 completes the receiving and executing work of the control instruction.
The input module 1 includes: the mode selection switch 11 and the mode selection switch 11 provide three selectable dimming modes, namely an automatic mode, a manual mode and a strong light mode.
The input module 1 includes: in the manual mode, the serial number of the LED of which the brightness is to be adjusted is input through a numeric keyboard, and the serial number is interpreted into the address of the slave controller corresponding to the corresponding LED in the controller.
The numeric keypad 12 is composed of ten numbers 0 to 9, a confirm key, and a delete key.
The input module 1 includes: the dimming knob 13 is adjusted in a manual mode, and the brightness of the corresponding LED can be changed by adjusting the dimming knob 13.
The input module 1 includes: the photosensitive sensor 14 is arranged near the LED and used for collecting ambient light information around the corresponding LED, and in the automatic dimming mode, the control module 2 receives the ambient light information transmitted by the photosensitive sensor 14, sends a control instruction to the output module 3 through calculation, and adjusts the brightness of the corresponding LED, so that the ambient light intensity is maintained near a certain constant value.
The control module 2 includes: and the main controller 21 is connected with the input module 1 through an I/O interface, receives and processes the dimming mode signal, the LED serial number and the dimming knob signal of the input module 1, and sends a control command containing the slave controller address and the LED brightness to the output module 3 in a forward frame mode.
The output module 3 includes: DALI interface 31, slave controller 32, LED 33;
the DALI interface 31 is used for forwarding a control instruction of a slave controller address and LED brightness to the slave controller 32;
the slave controller 32 recognizes that the slave controller address is self-owned, and executes a control command of the LED brightness corresponding to the slave controller address;
the LED33 operates according to the control command for LED brightness.
The invention has the advantages that:
the DALI system is realized on the system on chip, and the limitation that the typical DALI system carries out dimming control through a PC is eliminated; more DALI interfaces can be carried, more slave controllers can be controlled, and dimming control can be performed on the LED; a plurality of dimming modes are provided, namely an automatic mode, a manual mode and a strong light mode.
Drawings
Fig. 1 is a schematic diagram of the composition of a typical DALI dimming control system.
Fig. 2 is a schematic diagram of the multi-mode DALI dimming control system according to the present invention.
Detailed Description
The present invention is described in further detail below. Referring to fig. 2, a multi-mode dimming control system based on DALI protocol is composed of three modules, which are an input module, a control module, and an output module. The input module receives the dimming control mode, the LED serial number, the LED brightness adjusting signal and the ambient light signal and transmits the signals to the control module, and the control module sends a control instruction to the output module to perform dimming control through the DALI interface.
The input module 1 is composed of a mode selection switch 11, a numeric keyboard 12, a dimming knob 13 and a photosensitive sensor 14, and completes external information acquisition work such as dimming mode, ambient light information sensing and the like. The mode selection switch 11 provides three selectable dimming modes, namely an automatic mode, a manual mode and a strong light mode; the numeric keyboard 12 consists of ten numbers from 0 to 9, a confirmation key and a deletion key, and in a manual mode, the serial number of the LED of which the brightness is to be adjusted is input through the numeric keyboard 12 and is interpreted as the address of the slave controller corresponding to the corresponding LED in the controller; in the manual mode, the brightness of the corresponding LED can be changed by adjusting the light adjusting knob 13; the photosensitive sensor 14 is arranged near the LED to collect ambient light information around the corresponding LED, and in the automatic dimming mode, the control module 2 receives the ambient light information transmitted from the photosensitive sensor 14, and sends a control instruction to the output module 3 through calculation to adjust the brightness of the corresponding LED, so that the ambient light intensity is maintained near a certain constant value.
The control module 2 consists of a main controller, a power supply, a crystal oscillator, a reset switch and an E2And the PROM is used for completing the collection and calculation of the information of the input module and sending a control instruction to the output module. The main controller, the power supply, the crystal oscillator and the reset switch form a minimum system on a chip to realize the most basic control and information processing functions; the main controller 21 is connected to the input module through the I/O interface, receives and processes the dimming mode signal, the LED serial number, and the dimming knob signal of the input module, and sends a control command including an address of the slave controller and the LED brightness to the output module in the form of a forward frame.
The output module includes: DALI interface 31, slave controller 32, LED 33;
the DALI interface 31 is used for forwarding a control instruction of a slave controller address and LED brightness to the slave controller 32;
the slave controller 32 recognizes that the slave controller address is self-owned, and executes a control command of the LED brightness corresponding to the slave controller address;
the LED33 operates according to the control command for LED brightness.
Claims (8)
1. A multi-mode dimming control system based on the DALI protocol, comprising:
the device comprises an input module (1), a control module (2) and an output module (3);
the input module (1) receives the dimming control mode, the LED serial number, the LED brightness adjusting signal and the ambient light signal and transmits the signals to the control module,
the control module (2) is used for completing the collection and calculation of a dimming control mode, an LED serial number, an LED brightness adjusting signal and an ambient light signal from the information of the input module and sending a control instruction to the output module;
the output module (3) completes the receiving and execution work of the control instruction.
2. The DALI protocol based multi-mode dimming control system of claim 1,
the input module (1) comprises: the mode selection switch (11) and the mode selection switch (11) provide three selectable dimming modes, namely an automatic mode, a manual mode and a strong light mode.
3. The DALI protocol based multi-mode dimming control system of claim 1,
the input module (1) comprises: in the manual mode, the serial number of the LED of which the brightness is to be adjusted is input through a numeric keyboard, and the serial number is interpreted into the address of the slave controller corresponding to the corresponding LED in the controller.
4. A DALI protocol based multi-mode dimming control system as claimed in claim 3,
the numeric keyboard (12) is composed of ten numbers from 0 to 9, a confirmation key and a deletion key.
5. The DALI protocol based multi-mode dimming control system of claim 1,
the input module (1) comprises: and the dimming knob (13) is adjusted in a manual mode, so that the brightness of the corresponding LED can be changed.
6. A DALI protocol based multi-mode dimming control system according to claim 1, wherein the input module (1) comprises: the light-sensitive sensor (14) is arranged near the LED, the light-sensitive sensor (14) collects ambient light information around the corresponding LED, the control module (2) receives the ambient light information transmitted by the light-sensitive sensor (14) in an automatic dimming mode, and sends a control instruction to the output module (3) through calculation to adjust the brightness of the corresponding LED, so that the ambient light intensity is maintained near a certain constant value.
7. The DALI protocol based multi-mode dimming control system of claim 1,
the control module (2) comprises: the main controller (21) is connected with the input module (1) through the I/O interface, receives and processes the dimming mode signal, the LED serial number and the dimming knob signal of the input module (1), and sends a control instruction containing the slave controller address and the LED brightness to the output module (3) in a forward frame mode.
8. The DALI protocol based multi-mode dimming control system of claim 1,
the output module (3) comprises: a DALI interface (31), a slave controller (32), and an LED (33);
the DALI interface (31) is used for forwarding a control instruction of the slave controller address and the LED brightness to the slave controller (32);
the slave controller (32) recognizes that the slave controller address is self-contained, and executes the control command of the LED brightness corresponding to the slave controller address;
the LED (33) operates according to a control command for the LED brightness.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911387538.1A CN111148304A (en) | 2019-12-27 | 2019-12-27 | Multi-mode dimming control system based on DALI protocol |
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| CN201911387538.1A CN111148304A (en) | 2019-12-27 | 2019-12-27 | Multi-mode dimming control system based on DALI protocol |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114071837A (en) * | 2020-08-07 | 2022-02-18 | 全汉企业股份有限公司 | Lighting power supply circuit with dimming function and control method thereof |
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