One wire system intelligently takes electric electronic dimming system
Technical field
The present invention relates to a kind of electrical control gear more particularly to a kind of dimming control systems.
Background technology
The system for using multi-panel to carry out brightness adjustment control to single loop lighting loads circuit in the prior art is all using logical
Letter line is carrier, is controlled to the independent power supply of panel.It all has some limitations, can not flexibly use using upper.
Invention content
Technical problem to be solved by the invention is to provide a kind of more rational electronic dimming system, realize that one leads, is more
From panel device combine or be independently operated, realization interarea panel assembly output light source circuit is dimmed, start-up and shut-down control.The circuit
It can be widely applied to multi-panel and the signal light controls application fields such as start stop operation dimmed to the circuit in same master device.
The present invention to solve above-mentioned technical problem and the technical solution adopted is that
A kind of one wire system intelligently takes electric electronic dimming system, including load light source circuit and main panel,
The main panel includes a firewire input terminal, a fire wire output end, includes power supply in the main panel
Interconnecting module, zero cross detection circuit, driving circuit, MCU and main panel key circuit, the main panel by firewire input terminal and
Fire wire output end is series on the firewire in load light source circuit, and described driving circuit one end connects with the firewire input terminal
Connect, the other end is connect with the fire wire output end, the MCU respectively with the zero cross detection circuit, driving circuit and
Main panel key circuit connects, and the test side of the zero cross detection circuit is connect with the firewire input terminal, the mistake
Zero detection circuit realizes that alternating current sine wave zero crossing synchronizes, and the driving circuit realizes the control to light source in load light source circuit
It adjusts, main panel key circuit one end is connect with the firewire input terminal, the other end connects with the fire wire output end
It connects, two of the power adapting module take electric end to be connect respectively with firewire input, output end, the power adapting module
Power supply output end connect with the MCU, provide power supply for MCU;
The electronic dimming system be additionally provided with it is several from panel, it is described to be each provided with out of panel from panel button electricity
Road, it is described be connected in parallel on respectively between the firewire input terminal and fire wire output end from panel button circuit, with the main panel
Key circuit is in parallel, the detection realized from panel button circuit to being responded from panel button, the main panel key circuit
It realizes to main panel or from the detection that panel button responds, the MCU processing is sent to after detecting different push button signallings,
The MCU makes different control modes according to different key signal and drives the driving circuit, realizes to load light source circuit
The control and regulation of middle light source.
Described from panel, a hair is also in series with respectively from panel circuit in parallel with main panel key circuit
Optical circuit.
Above-mentioned electronic dimming system, dexterously application be connected in parallel on main panel key circuit on firewire and it is several from panel by
Key circuit realizes that (variation of button causes electricity to the detection to main panel or from panel button response by main panel key circuit
Press the variation of signal), MCU is then transferred signals to, after MCU detects different push button signallings, the MCU is according to difference
Push button signalling makes different control modes and drives the driving circuit, to realize the control to light source in load light source circuit
It adjusts.
It is advantageous that:
1, master and slave panel device can easily simultaneously dim the light source in load light source circuit, start and stop etc.
Operation.
2, technically realize extremely simple, of low cost, safeguard measure is complete, high reliability.
3, installation is simple, can be widely applied to single sided board and multi-panel to single loop dimming light source.
Description of the drawings
Fig. 1 is the structural schematic diagram that one wire system of the present invention intelligently takes electric electronic dimming system.
Fig. 2-Fig. 4 is the detection identification figure of button judgment part in the present invention.
In figure:
1, load light source circuit
101, light source
2, main panel
201, power adapting module 202, zero cross detection circuit 203, driving circuit
204, MCU 205, main panel key circuit
31,32,33, from panel 301,302,303, from panel button circuit
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 shows that a kind of one wire system intelligently takes electric electronic dimming system, if including load light source circuit 1, main panel 2 and
It does from panel 31,32,33.The main panel 2 includes a firewire input terminal, a fire wire output end, the main panel 2
It is interior include power adapting module 201, zero cross detection circuit 202, driving circuit 203, MCU204 and main panel key circuit 205,
The main panel 2 is series at by firewire input terminal and fire wire output end on the firewire in load light source circuit 1, driving electricity
203 one end of road is connect with the firewire input terminal, the other end is connect with the fire wire output end, MCU204 difference
It is connect with the zero cross detection circuit 202, driving circuit 203 and main panel key circuit 205, the zero cross detection circuit
202 test side is connect with the firewire input terminal, and the zero cross detection circuit 202 realizes that alternating current sine wave zero crossing is same
Step, the driving circuit 203 realize the control and regulation to light source 101 in load light source circuit 1, the main panel key circuit
205 one end are connect with the firewire input terminal, the other end is connect with the fire wire output end, the power adapting module
Two of 201 take electric end to be connect respectively with firewire input, output end, the power supply output end of the power adapting module 201 with
The MCU connections provide power supply for MCU;
The electronic dimming system be additionally provided with it is several from panel 31,32,33, it is described to be respectively arranged out of panel 31,32,33
Have from panel button circuit 301,302,303, it is described to be connected in parallel on the firewire respectively from panel button circuit 301,302,303
Between input terminal and fire wire output end, it is in parallel with the main panel key circuit 205, it is described from panel button circuit realize to from
The detection of panel button response, the main panel key circuit 205 are realized to main panel 2 or from 31,32,33 key responses of panel
Detection, the MCU204 processing is sent to after detecting different push button signallings, the MCU204 believes according to different key
It number makes different control modes and drives the driving circuit 201, realize the control tune to light source 101 in load light source circuit 1
Section.
Described from panel 31,32,33, distinguish from panel circuit in parallel with main panel key circuit 205
It is in series with an illuminating circuit.
In certain above-mentioned electronic dimming system from panel can be arranged 1,2,3 or more, can according to
The demand setting adjustment at family.
Fig. 2-Fig. 4 is the detection identification figure of button judgment part in the present invention:
(1), 301 press after, it is Fig. 2 that main intelligence, which takes the button of electric electronic light modulator to detect the waveform that receives,.
(2), 302 press after, it is Fig. 3 that main intelligence, which takes the button of electric electronic light modulator to detect the waveform that receives,.
(3), 303 press after, it is Fig. 4 that main intelligence, which takes the button of electric electronic light modulator to detect the waveform that receives,.
MCU204 can judge which is according to these waveforms by key pressing, and can distinguish short punch, grow and hit, still connect
It hits, then makes corresponding keypress function processing.
Certainly a luminous electricity can not also be in series with described in the considerations of being in cost or facility environment from panel circuit
Road.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.