CN103369775A - LED illumination control system and control method thereof - Google Patents
LED illumination control system and control method thereof Download PDFInfo
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- CN103369775A CN103369775A CN2012101022422A CN201210102242A CN103369775A CN 103369775 A CN103369775 A CN 103369775A CN 2012101022422 A CN2012101022422 A CN 2012101022422A CN 201210102242 A CN201210102242 A CN 201210102242A CN 103369775 A CN103369775 A CN 103369775A
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Abstract
The invention relates to an LED illumination control system including a master controller and a sub-controller. The master controller includes a switch tube and a micro-controller circuit. The sub-controller includes a signal sampling circuit, a micro-controller circuit, a voltage-stabilizing circuit and a driving circuit. An output end of the switch tube of the master controller is connected serially between direct-current electricity transmission and signal lines through which direct current is transmitted to the sub-controller. A control end of the switch tube of the master controller is connected with a signal-output end of the micro-controller circuit of the master controller. A signal-input end of the signal-sampling circuit of the sub-controller is connected with a power input end of the voltage stabilizing circuit and the direct-current electricity transmission and signal lines and a signal-output end of the signal-sampling circuit of the sub-controller is connected with a signal-input end of the micro-controller circuit. The signal-output end of the micro-controller circuit is connected with a signal-input end of the driving circuit. A control output end of the driving circuit is connected with a load. The other end of the load is connected with the direct-current electricity transmission and signal lines. Through use of the two direct-current electricity transmission and signal lines, the LED illumination control system enables power supply and control of the sub-controller and the load of the sub-controller by the master controller to be realized and a problem, which exists in the prior art, that the LED illumination control system cannot be used directly on a two-wire illuminating line which is already well laid is solved.
Description
Technical field
The present invention relates to a kind of control system and control method thereof, particularly relate to a kind of LED Lighting Control Assembly and control method thereof.
Background technology
Existing LED Lighting Control Assembly adopts between master controller and each sub-controller by power supply and two connections of signal usually to the control of a plurality of and many group LED lamps, the power supply of each sub-controller is connected with signal end with power circuit and is connected with signal line, power supply and signal are respectively walked the passage of each, and signal and communication adopts RS485 or DMX512 usually.Because need two different circuits respectively transferring electric power and control signals, wiring cost is high, the effort of taking a lot of work, more can not with existing circuit realize master controller to a plurality of sub-controllers and these sub-controllers with the control of numerous LED lamps.The system of some employing DMX512 or other communication modes also 220V handed over electric power send to each sub-controller with the LED load, relatively also have potential safety hazard.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of LED Lighting Control Assembly and control method thereof, solving existing LED Lighting Control Assembly needs respectively to realize that with power supply and two circuits of signal master controller is to sub-controller and the load-carrying Power supply and control of sub-controller, the problem that must not be directly use at the existing illuminating line that has laid of solution also, both can control the LED lamp light or extinguish can also light modulation, even can also drive motors start, stop or speed governing and the break-make that drives relay, have significant technological progress.
A kind of LED Lighting Control Assembly comprises master controller and sub-controller, it is characterized in that:
Master controller comprises switching tube, microcontroller circuit;
Sub-controller comprises signal sample circuit, microcontroller circuit, voltage stabilizing circuit and drive circuit;
The output of the switching tube of master controller is connected on direct current and holds concurrently between the control line towards the direct current supply of sub-controller, and its control end is connected with the signal output part of the microcontroller circuit of master controller;
The power input of the voltage stabilizing circuit of sub-controller is connected as the power input of sub-controller and the direct current supply control line of holding concurrently, the signal input part of the signal sample circuit of sub-controller is connected with the power input of voltage stabilizing circuit, its signal output part is connected with the signal input part of the microcontroller circuit of sub-controller, the signal output part of microcontroller circuit is connected with the signal input part of drive circuit, the control output end of drive circuit is connected with load as the control output end of sub-controller, and the other end of load and the direct current supply control line of holding concurrently is connected.
Master controller also comprises voltage stabilizing circuit, and switching tube is field effect transistor;
The power input of voltage stabilizing circuit is connected with galvanic positive pole, and its power output end is connected with the power input of the microcontroller circuit of master controller, and its ground end is connected the ground end and is connected with galvanic negative pole with microcontroller circuit.
Master controller also comprises the power taking voltage stabilizing circuit, and switching tube is field effect transistor;
The power input of power taking voltage stabilizing circuit is connected with the galvanic inflow end of field effect transistor, its power output end is connected with the power input of microcontroller circuit, its ground end is connected the ground end and is connected with galvanic negative pole with microcontroller circuit, or its hold and be connected with the ground end of microcontroller circuit.
The power taking voltage stabilizing circuit also comprises diode, and field effect transistor is the N raceway groove;
Diode anode is connected with the drain electrode of field effect transistor, and its negative electrode is connected with voltage stabilizing circuit input in the power taking voltage stabilizing circuit;
The source electrode of field effect transistor is connected with the ground end of microcontroller circuit and the ground end of power taking voltage stabilizing circuit, and its grid is connected with the signal output part of microcontroller circuit;
The power output end of the voltage stabilizing circuit in the power taking voltage stabilizing circuit is connected with the power input of the microcontroller circuit of master controller.
The power taking voltage stabilizing circuit also comprises diode, and field effect transistor is the P raceway groove, and master controller also comprises triode and resistance;
Diode cathode is connected with the drain electrode of field effect transistor, and its anode is connected with the ground end of power taking voltage stabilizing circuit and the ground end of microcontroller circuit;
The power input of the voltage stabilizing circuit in the source electrode of field effect transistor and the power taking voltage stabilizing circuit is connected, its grid is connected with transistor collector by resistance, one end of another resistance is connected with fet gate, the other end is connected with the source electrode of field effect transistor, the emitter of triode is connected with the ground end of microcontroller circuit, and its base stage is connected with the signal output part of microcontroller circuit;
The power output end of the voltage stabilizing circuit in the power taking voltage stabilizing circuit is connected with the power input of the microcontroller circuit of master controller.
The signal sample circuit of sub-controller comprises voltage stabilizing didoe, its negative electrode is connected with the power input of sub-controller as the signal input part of signal sample circuit, and its anode is connected with the signal input part of microcontroller circuit as the signal output part of signal sample circuit;
Drive circuit comprises the field effect transistor corresponding with the control loop of output, and its grid is connected with the signal output part of microcontroller circuit, and its drain electrode is connected with load as the output of sub-controller, and its source electrode is connected publicly with sub-controller.
The signal sample circuit of sub-controller comprises voltage stabilizing didoe, its negative electrode is connected with the power input of sub-controller as the signal input part of signal sample circuit, and its anode is connected with the signal input part of microcontroller circuit as the signal output part of signal sample circuit;
Drive circuit comprises field effect transistor and the constant-current circuit corresponding with the control loop of output, its grid is connected with the signal output part of microcontroller circuit, its drain electrode is connected with load as the output of sub-controller, its source electrode is connected with the constant current output end of constant-current circuit, the ground end of constant-current circuit and being connected publicly of sub-controller.
The signal sample circuit of sub-controller comprises voltage stabilizing didoe, its negative electrode is connected with the power input of sub-controller as the signal input part of signal sample circuit, and its anode is connected with the signal input part of microcontroller circuit as the signal output part of signal sample circuit;
Drive circuit also comprises the H bridge, and its output is connected with direct current machine as the output of sub-controller, and its ground end is connected publicly with sub-controller, and its input is connected with the signal output part of microcontroller circuit.
A kind of control method of LED Lighting Control Assembly is characterized in that comprising:
Microcontroller in the master controller detects the control information of inputting, and produce corresponding control signal according to the different control informations that receive and be transferred to field effect transistor, field effect transistor receives this signal and the connected direct current supply control circuit of holding concurrently is controlled, and sends simultaneously electric power and signal to each sub-controller;
Being connected to the hold concurrently signal sample circuit of each sub-controller on the control circuit of direct current supply samples to the control signal of coming autonomous controller and sends microcontroller in the sub-controller to, microcontroller detects the sampled signal input and compares with the control information that writes each control loop of sub-controller in the microcontroller, when the sampled signal that detects input when the microcontroller of m sub-controller meets the control information of this sub-controller n control loop, microcontroller is exported corresponding control signal to drive circuit, and the load of being controlled the n control loop by drive circuit realizes lighting load LED lamp, extinguish and the startup of light modulation or motor, stop and the control of the break-make of speed governing or relay.
If when the microcontroller in the master controller receives the control information of input then to master controller field effect transistor transmission frequency or the coded system duty ratio corresponding with the control information of this input be 99% square-wave signal, this square wave signal sends electric power and signal to each sub-controller simultaneously by the master controller field effect transistor control direct current supply control circuit of holding concurrently;
Exemplary steps:
Step S01, the microcontroller in the master controller (hereinafter to be referred as MCU) detects the control information of input;
Step S02, master controller MCU judges whether to receive input message, as does not receive and then continue to detect, as receives information, turns step S03;
Step S03, master controller MCU send control signal corresponding to this information to the master controller field effect transistor;
Step S04, the master controller field effect transistor receives this signal and responding to switch action;
Step S05, the sub-controller signal sampling also flows to sub-controller MCU;
Step S06, sub-controller MCU detects input message;
Step S07, sub-controller MCU judges whether to receive the control information that belongs to this sub-controller, as does not receive and then turn step 06, as receives and then turn step S08;
Step S08, it is what instruction in which loop that sub-controller MCU judges, control signal corresponding to output arrives drive circuit;
Step S09, drive circuit drive field effect transistor conducting or shutoff or the light modulation in corresponding loop; Step S10, the LED lamp in corresponding loop is lighted or is extinguished or light modulation.
LED control system of the present invention only can realize that with the power supply of the two lines control circuit of holding concurrently master controller is to sub-controller and load-carrying Power supply and control, also solved the problem that existing LED Lighting Control Assembly can not directly use at the existing two-wire system illuminating line that has laid, both can control the LED lamp light or extinguish can also light modulation, even can also drive motors start, stop or the break-make of speed governing and driving relay.System adopts LED to concentrate the mode of direct current supply, and without DC power supply, the heating of reduction has prolonged life-span of led chip in the LED lamp.Select safe voltage to send master controller, sub-controller and load to as electric power, use and maintenance is safer.In sum, the present invention compared with prior art has significant technological progress.
Description of drawings
Fig. 1 is the first embodiment of the invention theory diagram.
Fig. 2 is the second embodiment of the invention theory diagram.
Fig. 3 is the third embodiment of the invention theory diagram.
Fig. 4 is the fourth embodiment of the invention theory diagram.
Fig. 5 be a plurality of sub-controllers of master controller band of the present invention and with the embodiment theory diagram of a plurality of LED loads.
Fig. 6 be a plurality of sub-controllers of master controller band of the present invention and with the embodiment theory diagram of various loads.
Fig. 7 is the theory diagram of the present invention's a plurality of sub-controllers of a plurality of master controller bands and load embodiment thereof.
Fig. 8 is the schematic diagram of first embodiment of the invention master controller.
Fig. 9 is the schematic diagram of second embodiment of the invention master controller.
Figure 10 is the schematic diagram of third embodiment of the invention master controller.
Figure 11 is the schematic diagram of fourth embodiment of the invention master controller.
Figure 12 is the schematic diagram of sub-controller signal sample circuit the first embodiment of the present invention.
Figure 13 is the schematic diagram of sub-controller signal sample circuit the second embodiment of the present invention.
Figure 14 is the schematic diagram of sub-controller drive circuit the first embodiment of the present invention.
Figure 15 is the schematic diagram of sub-controller drive circuit the second embodiment of the present invention.
Figure 16 is the schematic diagram of sub-controller drive circuit the 3rd embodiment of the present invention.
Figure 17 is the schematic diagram of sub-controller drive circuit the 4th embodiment of the present invention.
Figure 18 is flow chart of the present invention.
Figure 19 is that a plurality of master controllers of the present invention are respectively with the theory diagram of a plurality of sub-controllers and a plurality of load embodiment.
Figure 20 is that a plurality of master controllers of master controller band of the present invention are more respectively with the theory diagram of a plurality of sub-controllers and a plurality of load embodiment.
Embodiment
The present invention will be further described below in conjunction with drawings and embodiments.
The first embodiment of the present invention as shown in Figure 1, a kind of LED Lighting Control Assembly of the present invention comprises master controller 10 and sub-controller 20, master controller 10 comprises switching tube 11 and microcontroller circuit 12; Sub-controller 20 comprises signal sample circuit 21, microcontroller circuit 22, voltage stabilizing circuit 23 and drive circuit 24; The output of the switching tube 11 of master controller 10 is connected on the direct current negative pole and holds concurrently between the control line DS-towards the direct current supply of sub-controller 20, and its control end is connected with the signal output part of the microcontroller circuit 12 of master controller 10.
The power input of the voltage stabilizing circuit 23 of sub-controller 20 is connected as the power input of sub-controller 20 and the direct current supply control line DS+ that holds concurrently, the signal input part of the signal sample circuit 21 of sub-controller 20 is connected with the power input of voltage stabilizing circuit 23, its signal output part is connected with the signal input part of the microcontroller circuit 22 of sub-controller 20, the signal output part of microcontroller circuit 22 is connected with the signal input part of drive circuit 24, the control output end of drive circuit 24 is connected with load LED lamp as the control output end of sub-controller 20, and the other end of load LED lamp and the direct current supply control line DS+ that holds concurrently is connected.
Such as Fig. 1 and shown in Figure 8, master controller 10 also comprises voltage stabilizing circuit 13, and switching tube 11 is N channel field-effect pipe Q11.
The power input of voltage stabilizing circuit 13 is connected with galvanic positive pole, and its power output end is connected with the power input of the microcontroller circuit 12 of master controller, and the ground end that its ground end is connected with microcontroller circuit is connected with galvanic negative pole.
The second embodiment of the present invention such as Fig. 2 and shown in Figure 9, and the first embodiment difference is that the output of the switching tube 11 of master controller 10 is connected on the anodal direct current supply of leading to sub-controller 20 of direct current and holds concurrently between the control line DS+, and switching tube 11 is P-channel field-effect transistor (PEFT) pipe Q11.Master controller 10 also comprises triode Q12 and resistance R 11 and R12.The power input of voltage stabilizing circuit IC13 in the source electrode of field effect transistor Q11 and the power taking voltage stabilizing circuit 13 is connected, its grid is connected with triode Q12 collector electrode by resistance R 12, one end of resistance R 11 is connected with field effect transistor Q11 grid, the other end is connected with the source electrode of field effect transistor Q11, the emitter of triode Q12 is connected with the ground end of microcontroller circuit 12, and its base stage is connected with the signal output part of microcontroller circuit 12.
The third embodiment of the present invention such as Fig. 3 and shown in Figure 10, the output of the switching tube 11 of master controller 10 is connected on the direct current negative pole and holds concurrently between the control line DS-towards the direct current supply of sub-controller 20, switching tube 11 is N channel field-effect pipe Q11, and master controller 10 also comprises power taking voltage stabilizing circuit 13.
The power input of power taking voltage stabilizing circuit 13 is connected with the galvanic inflow end DS-of field effect transistor Q11, and its power output end is connected with the power input of microcontroller circuit 12, and its ground end is connected the ground end and is connected with galvanic negative pole with microcontroller circuit.
The fourth embodiment of the present invention such as Fig. 4 and shown in Figure 11, and the 3rd embodiment difference is that the output of the switching tube 11 of master controller 10 is connected on the anodal direct current supply of leading to sub-controller 20 of direct current and holds concurrently between the control line DS+, switching tube 11 is P-channel field-effect transistor (PEFT) pipe Q11, and the ground end of power taking voltage stabilizing circuit 13 is connected with the ground end of microcontroller circuit.
In the 3rd embodiment, as shown in figure 10, power taking voltage stabilizing circuit 13 also comprises diode D13, and field effect transistor Q11 is the N raceway groove, the anode of diode D13 is connected with the drain electrode of field effect transistor Q11, and its negative electrode is connected with voltage stabilizing circuit IC13 input in the power taking voltage stabilizing circuit 13.The source electrode of field effect transistor Q11 is connected with the ground end of microcontroller circuit 12 and the ground end of power taking voltage stabilizing circuit 13, and its grid is connected with the signal output part of microcontroller circuit 12.The power output end of voltage stabilizing circuit IC13 in the power taking voltage stabilizing circuit 13 is connected with the power input of the microcontroller circuit 12 of master controller 10.
In the 4th embodiment, as shown in figure 11, power taking voltage stabilizing circuit 13 also comprises diode D13, and field effect transistor is the P raceway groove, and master controller 10 also comprises triode Q12 and resistance R 11 and R12.Diode D13 negative electrode is connected with the drain electrode of field effect transistor Q11, and its anode is connected with the ground end of power taking voltage stabilizing circuit 13 and the ground end of microcontroller circuit 12.The power input of voltage stabilizing circuit IC13 in the source electrode of field effect transistor Q11 and the power taking voltage stabilizing circuit 13 is connected, its grid is connected with triode Q12 collector electrode by resistance R 12, one end of another resistance R 11 is connected with field effect transistor Q11 grid, the other end is connected with the source electrode of field effect transistor Q11, the emitter of triode Q12 is connected with the ground end of microcontroller circuit 12, and its base stage is connected with the signal output part of microcontroller circuit 12.The power output end of voltage stabilizing circuit IC13 in the power taking voltage stabilizing circuit 13 is connected with the power input of the microcontroller circuit 12 of master controller 10.
Sub-controller of the present invention for example execute Figure 12 to shown in Figure 17, the signal sample circuit 21 of sub-controller 20 comprises voltage stabilizing didoe Z21, its negative electrode is connected with the power input of sub-controller 20 as the signal input part of signal sample circuit 21, and its anode is connected with the signal input part of microcontroller circuit 22 as the signal output part of signal sample circuit 21.
Signal sample circuit the first embodiment of the present invention as shown in figure 12, signal sample circuit 21 also comprises divider resistance (pull down resistor) R21, the anodic bonding of one end and voltage stabilizing didoe Z21, its other end be connected publicly.
Signal sample circuit the second embodiment of the present invention as shown in figure 13, if with above-described embodiment difference be the signal input part of microcontroller circuit 22 built-in pull down resistor, then can cancel divider resistance (pull down resistor) R21.
Sub-controller drive circuit the first embodiment of the present invention as shown in figure 14, drive circuit 24 comprises field effect transistor Q241, Q242 and the Q243 corresponding with the control loop of output, its grid is connected with the signal output part of microcontroller circuit 22, its drain electrode is connected with the LED lamp load as the output of sub-controller 20, and its source electrode is connected publicly with sub-controller 20.The present embodiment sub-controller with LED lamp load inside have constant-current circuit, to guarantee LED lamp load safe and reliable operation.
Sub-controller drive circuit the second embodiment of the present invention as shown in figure 15, drive circuit 24 comprises and corresponding field effect transistor Q241, the Q242 of control loop of output and Q243 and the constant-current circuit of connecting with field effect transistor, fet gate is connected with the signal output part of microcontroller circuit 22, its drain electrode is connected with the LED lamp load as the output of sub-controller 20, its source electrode is connected with the constant current output end of constant-current circuit, the ground end of constant-current circuit and being connected publicly of sub-controller.The power end of constant-current circuit is connected with the power output end of voltage stabilizing circuit 23.The present embodiment is owing to having constant-current circuit in the sub-controller, therefore with the LED lamp load in can not establish constant-current circuit.
Sub-controller drive circuit the 3rd embodiment of the present invention is that the control end of constant-current circuit and constant current signal sampling output are connected with signal input part with the control output end of microcontroller 22 with sub-controller drive circuit the second embodiment difference as shown in figure 16.
Sub-controller drive circuit the 4th embodiment of the present invention as shown in figure 16, with sub-controller drive circuit the first embodiment difference be that drive circuit 24 also comprises the H bridge, its output is connected with direct current machine as the output of sub-controller 20, its ground end is connected publicly with sub-controller 20, and its input is connected with the signal output part of microcontroller circuit 22.The present embodiment can be controlled the motor that is attached on the LED illuminator, as the LED lamp being made the form of translator control lifting, such as the dining room pendent lamp, fall when being at table by the main controller controls pendent lamp, rise at ordinary times, the space, dining room is become feel greatly more spacious.And for example can be to certain orientation irradiation and conversion irradiation orientation with Electric Machine Control with the LED lamp.
As shown in Figure 5 and Figure 6, master controller of the present invention not only can be with a sub-controller, also can be with a plurality of sub-controllers, and each sub-controller can be with one to a plurality of LED loads and other load.
As shown in Figure 7, the present invention also can have a plurality of sub-controllers of a plurality of master controller bands and load thereof.
The present invention also provides a kind of control method of LED illumination driving control circuit:
Microcontroller in the master controller detects the control information of inputting, and produce corresponding control signal according to the different control informations that receive and be transferred to field effect transistor, field effect transistor receives this signal and controls with control circuit that connected direct current supply is held concurrently, and sends simultaneously electric power and signal to each sub-controller.
Being connected to the hold concurrently signal sample circuit of each sub-controller on the control circuit of direct current supply samples to the control signal of coming autonomous controller and sends microcontroller in the sub-controller to, microcontroller detects the sampled signal input and compares with the control information that writes each control loop of sub-controller in the microcontroller, when the sampled signal that detects input when the microcontroller of m sub-controller meets the control information of this sub-controller n control loop, microcontroller is exported corresponding control signal to drive circuit, and the load of being controlled the n control loop by drive circuit realizes lighting load LED lamp, extinguish and the startup of light modulation or motor, stop and the control of the break-make of speed governing or relay.
If when the microcontroller in the master controller receives the control information of input then to master controller field effect transistor transmission frequency or the coded system duty ratio corresponding with the control information of this input be 99% square-wave signal, this square wave signal sends electric power and signal to each sub-controller simultaneously by the master controller field effect transistor control direct current supply control circuit of holding concurrently.
Flow chart of the present invention as shown in figure 18, exemplary steps is as follows:
Step S01, the microcontroller in the master controller (hereinafter to be referred as MCU) detects the control information of input;
Step S02, master controller MCU judges whether to receive input message, as does not receive and then continue to detect, as receives information, turns step S03;
Step S03, master controller MCU send control signal corresponding to this information to the master controller field effect transistor;
Step S04, the master controller field effect transistor receives this signal and responding to switch action;
Step S05, the sub-controller signal sampling also flows to sub-controller MCU;
Step S06, sub-controller MCU detects input message;
Step S07, sub-controller MCU judges whether to receive the control information that belongs to this sub-controller, as does not receive and then turn step 06, as receives and then turn step S08;
Step S08, it is what instruction in which loop that sub-controller MCU judges, control signal corresponding to output arrives drive circuit;
Step S09, drive circuit drive field effect transistor conducting or shutoff or the light modulation in corresponding loop;
Step S10, the LED lamp in corresponding loop is lighted or is extinguished or light modulation.
When master controller when to send duty ratio be 99% control signal to each sub-controller, in one-period because time of 1% is only arranged is off state, therefore human eye visually is difficult to perceive signal light and shade when not transmitting when transmission and changes, and also is difficult to discover this variation when actual measurement.For also to each sub-controller sends the control mode that duty ratio is 99% direct current power, just more not had this problem when the signal transmission not.Various control information can be with duty ratio is identical but the mode that frequency is different realize, the constant and Frequency generated of the duty ratio of signal changes that not affect LED luminous, the light and shade that can not produce light changes.
For the present invention the third and fourth embodiment, because master controller is connected in the direct current power supply loop, the direct current power of supplying with its controller work obtains by the single loop way to take power, therefore, light or in service as long as the LED lamp of a sub-controller is arranged or load on, just need to by the master controller output duty cycle be 99% waveform direct current power to each sub-controller and with load.And this moment for the first and the 3rd embodiment, the exportable duty ratio of master controller be 100% waveform electric power (being full direct current power) to each sub-controller and with load.When all sub-controller institute bringing onto loads were closed fully, the mode that can adopt master controller to turn-off each sub-controller electric power fully, this mode made the people feel safer.The mode that also can adopt master controller not turn-off or not exclusively turn-off each sub-controller electric power, this mode is more convenient for using for sub-controller is connected with the system of transducer.
As shown in figure 19, in each master controller, master controller also can directly be controlled the LED lamp as required, and this only needs can save sub-controller concerning the operating position that they unify to control for the one or more LED lamps of master controller band or other load, reduce use cost.Master controller band sub-controller and master controller directly also can be widely used to satisfy client's different demands with the hybrid mode of LED load.
As shown in figure 20, the present invention also can comprise master controller, have and the same or similar microcontroller circuit of master controller, field effect transistor, voltage stabilizing circuit, its power input is connected with DC power supply, and its output is connected with each master controller by the direct current supply control circuit of holding concurrently.Each master controller also comprises and the same or similar signal sample circuit of sub-controller, its signal input part is connected to the power input that master controller is input to master controller, its signal output part is connected with the signal input part of the microcontroller circuit of master controller, microcontroller circuit is received the control signal of sending from master controller by signal sample circuit, when judgement is the signal of this master controller, send corresponding control signal to corresponding sub-controller or corresponding load, realize the control to sub-controller and load.Master controller also has information input section, and is concrete identical with master controller or similar, sees following description for details.
The input information mode of master controller is key-press input or touches input or the induction input, also can be three kinds of pattern combination in any.Induction type can adopt infrared reflection type induction or baffle type induction, and this operator scheme is fit to kitchen, toilet or public place.Master controller also can comprise display screen, is used for demonstration information.Indicator light also can be set do simple information demonstration.
Also transducer can be linked into the microcontroller circuit information input terminal of master controller, such as the photo resistance in the optical sensor or photodiode, the luminous environment that detects can be input to microcontroller circuit, autoshutdown when the LED lamp load of controlling sub-controller according to the illumination of surround lighting is turned on light automatically and daytime, light was brighter under dark environment.Also can connect human body sensor, accomplish people Lai Dengliang, turn off the light when you leave.
The input information mode of master controller also comprises wireless telecommunications, WLAN communication, Wifi communication, infrared communication and bluetooth communication mode, such as the wireless telecommunications of frequency 433M to 2.4G, and IEEE802.11 WLAN (wireless local area network), Wifi.Therefore master controller also comprises wireless receiving module or wireless receiving and dispatching transmitting-receiving, IEEE802.11 Wireless LAN module, Wifi transceiver module or Wifi receiver module, infrared receiving module or transceiver module, and bluetooth module.
Has the Wifi module such as master controller, can carry out the Wifi communication with mobile phone or computer and Wifi remote controller, by mobile phone or computer LED lamp and load are controlled, also can realize the both-way communication between mobile phone or computer and each master controller, can show the ruuning situation of each room light fixture and load and implement control at mobile phone or computer.For the system with master controller, also the Wifi module can be installed in master controller, can be with extraneous such as mobile phone or computer and the communication of Wifi remote controller, and realize the load implementation that each sub-controller and institute's bringing onto load thereof and master controller directly are with is controlled by each master controller.Can also be connected by USB interface between master controller and the computer.
The input information of master controller also can comprise the bus input mode, by bus system LED Lighting Control Assembly of the present invention is controlled, and therefore, master controller also can comprise bus transceiver.
Sub-controller of the present invention also can be controlled 220V electrical equipment, can be controllable silicon or relay such as load, can realize to ventilation fan startup, stop and speed governing, also can realize the control to the super bath in the bathroom or heater.
The present invention also can be installed in sub-control circuit in the large LED lamp, controls each LED lamp or LED lamp string in this large LED lamp, can realize subregion or the segmentation light emitting control of a LED lamp.
Sub-controller of the present invention can drive R, G, B three-color LED, can produce the colorful gorgeous effect that different colours changes, and also can carry out brightness adjustment control to the LED of different-colour, produces the lighting environment that different-colour changes.
Sub-controller of the present invention can resemble connecting sensor the master controller, such as optical sensor and human body sensor.
The present invention also can be connected to security protection system and fire disaster emergency Lighting Control Assembly, as runs into rapidly lightening LED lamp of emergency.
The present invention the third and fourth embodiment is connected in the direct current power supply loop owing to master controller, therefore can be directly in the use of existing two-wire system supply line and needn't the circuit in the body of wall be transformed, master controller can directly be replaced existing switch on wall, in distribution box, pull down the wiring of the former illuminating line of termination under the illumination circuit breaker, the dc output end of reconfiguration AC/DC supply convertor, the ac input end of AC/DC supply convertor connects the lower end of illumination circuit breaker, both direct current can be transferred to each master controller by former line illumination road, in sub-controller and each LED lamp and other load.
The present invention can be applicable to office building, hospital, hotel, villa and residential quarters can also be applied in the large-scale and small-sized venues such as stadiums, arenas, market, also can be applicable to outdoor illuminator, such as the illumination of square, stadium and street lamp, also be applicable to Landscape Lighting.In places such as indoor households, can adopt the converter at distribution box place installation AC/DC, with the power input that the 220V interchange is converted to 36V or safe direct current is transported to system of the present invention below the 36V, for outdoor illuminating systems such as street lamps, available AC/DC converter is converted to 36V with alternating current or is transported to the power input of system of the present invention greater than the direct current of 36V.
LED control system of the present invention only can realize that with the power supply of the two lines control circuit of holding concurrently master controller is to sub-controller and load-carrying Power supply and control, have the advantage that control circuit is simple, with low cost, be convenient to implement, can promote LED illumination popularizing under existence conditions.
Above-described only is preferred implementation of the present invention, should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (10)
1. a LED Lighting Control Assembly comprises master controller and sub-controller, it is characterized in that:
Master controller comprises switching tube, microcontroller circuit;
Sub-controller comprises signal sample circuit, microcontroller circuit, voltage stabilizing circuit and drive circuit;
The output of the switching tube of master controller is connected on direct current and holds concurrently between the holding wire towards the direct current transportation of sub-controller, and its control end is connected with the signal output part of the microcontroller circuit of master controller;
The power input of the voltage stabilizing circuit of sub-controller is connected as the power input of sub-controller and the direct current transportation holding wire of holding concurrently, the signal input part of the signal sample circuit of sub-controller is connected with the power input of voltage stabilizing circuit, its signal output part is connected with the signal input part of the microcontroller circuit of sub-controller, the signal output part of microcontroller circuit is connected with the signal input part of drive circuit, the control output end of drive circuit is connected with load as the control output end of sub-controller, and the other end of load and the direct current transportation holding wire of holding concurrently is connected.
2. LED Lighting Control Assembly as claimed in claim 1 is characterized in that:
Master controller also comprises voltage stabilizing circuit, and switching tube is field effect transistor;
The power input of voltage stabilizing circuit is connected with galvanic positive pole, and its power output end is connected with the power input of the microcontroller circuit of master controller, and its ground end is connected the ground end and is connected with galvanic negative pole with microcontroller circuit.
3. LED Lighting Control Assembly as claimed in claim 1 is characterized in that:
Master controller also comprises the power taking voltage stabilizing circuit, and switching tube is field effect transistor;
The power input of power taking voltage stabilizing circuit is connected with the galvanic inflow end of field effect transistor, its power output end is connected with the power input of microcontroller circuit, its ground end is connected the ground end and is connected with galvanic negative pole with microcontroller circuit, or its hold and be connected with the ground end of microcontroller circuit.
4. LED Lighting Control Assembly as claimed in claim 3 is characterized in that:
The power taking voltage stabilizing circuit also comprises diode, and field effect transistor is the N raceway groove;
Diode anode is connected with the drain electrode of field effect transistor, and its negative electrode is connected with voltage stabilizing circuit input in the power taking voltage stabilizing circuit;
The source electrode of field effect transistor is connected with the ground end of microcontroller circuit and the ground end of power taking voltage stabilizing circuit, and its grid is connected with the signal output part of microcontroller circuit;
The power output end of the voltage stabilizing circuit in the power taking voltage stabilizing circuit is connected with the power input of the microcontroller circuit of master controller.
5. LED Lighting Control Assembly as claimed in claim 3 is characterized in that:
The power taking voltage stabilizing circuit also comprises diode, and field effect transistor is the P raceway groove, and master controller also comprises triode and resistance;
Diode cathode is connected with the drain electrode of field effect transistor, and its anode is connected with the ground end of power taking voltage stabilizing circuit and the ground end of microcontroller circuit;
The power input of the voltage stabilizing circuit in the source electrode of field effect transistor and the power taking voltage stabilizing circuit is connected, its grid is connected with transistor collector by resistance, one end of another resistance is connected with fet gate, the other end is connected with the source electrode of field effect transistor, the emitter of triode is connected with the ground end of microcontroller circuit, and its base stage is connected with the signal output part of microcontroller circuit;
The power output end of the voltage stabilizing circuit in the power taking voltage stabilizing circuit is connected with the power input of the microcontroller circuit of master controller.
6. LED Lighting Control Assembly as claimed in claim 1 is characterized in that:
The signal sample circuit of sub-controller comprises voltage stabilizing didoe, its negative electrode is connected with the power input of sub-controller as the signal input part of signal sample circuit, and its anode is connected with the signal input part of microcontroller circuit as the signal output part of signal sample circuit;
Drive circuit comprises the field effect transistor corresponding with the control loop of output, and its grid is connected with the signal output part of microcontroller circuit, and its drain electrode is connected with load as the output of sub-controller, and its source electrode is connected publicly with sub-controller.
7. LED Lighting Control Assembly as claimed in claim 1 is characterized in that:
The signal sample circuit of sub-controller comprises voltage stabilizing didoe, its negative electrode is connected with the power input of sub-controller as the signal input part of signal sample circuit, and its anode is connected with the signal input part of microcontroller circuit as the signal output part of signal sample circuit;
Drive circuit comprises field effect transistor and the constant-current circuit corresponding with the control loop of output, its grid is connected with the signal output part of microcontroller circuit, its drain electrode is connected with load as the output of sub-controller, its source electrode is connected with the constant current output end of constant-current circuit, the ground end of constant-current circuit and being connected publicly of sub-controller.
8. LED Lighting Control Assembly as claimed in claim 1 is characterized in that:
The signal sample circuit of sub-controller comprises voltage stabilizing didoe, its negative electrode is connected with the power input of sub-controller as the signal input part of signal sample circuit, and its anode is connected with the signal input part of microcontroller circuit as the signal output part of signal sample circuit;
Drive circuit also comprises the H bridge, and its output is connected with direct current machine as the output of sub-controller, and its ground end is connected publicly with sub-controller, and its input is connected with the signal output part of microcontroller circuit.
9. the control method of a LED Lighting Control Assembly is characterized in that comprising:
Microcontroller in the master controller detects the control information of inputting, and produce corresponding control signal according to the different control informations that receive and be transferred to field effect transistor, field effect transistor receives this signal and the connected direct current transportation signal line of holding concurrently is controlled, and sends simultaneously electric power and signal to each sub-controller;
Being connected to the hold concurrently signal sample circuit of each sub-controller on the signal line of direct current transportation samples to the control signal of coming autonomous controller and sends microcontroller in the sub-controller to, microcontroller detects the sampled signal input and compares with the control information that writes each control loop of sub-controller in the microcontroller, when the sampled signal that detects input when the microcontroller of m sub-controller meets the control information of this sub-controller n control loop, microcontroller is exported corresponding control signal to drive circuit, and the load of being controlled the n control loop by drive circuit realizes lighting load LED lamp, extinguish and the startup of light modulation or motor, stop and the control of the break-make of speed governing or relay.
10. control method as claimed in claim 9 characterized by further comprising:
If when the microcontroller in the master controller receives the control information of input then to master controller field effect transistor transmission frequency or the coded system duty ratio corresponding with the control information of this input be 99% square-wave signal, this square wave signal sends electric power and signal to each sub-controller simultaneously by the master controller field effect transistor control direct current transportation signal line of holding concurrently;
Exemplary steps:
Step S01, the microcontroller in the master controller (hereinafter to be referred as MCU) detects the control information of input;
Step S02, master controller MCU judges whether to receive input message, as does not receive and then continue to detect, as receives information, turns step S03;
Step S03, master controller MCU send control signal corresponding to this information to the master controller field effect transistor;
Step S04, the master controller field effect transistor receives this signal and responding to switch action;
Step S05, the sub-controller signal sampling also flows to sub-controller MCU;
Step S06, sub-controller MCU detects input message;
Step S07, sub-controller MCU judges whether to receive the control information that belongs to this sub-controller, as does not receive and then turn step 06, as receives and then turn step S08;
Step S08, it is what instruction in which loop that sub-controller MCU judges, control signal corresponding to output arrives drive circuit;
Step S09, drive circuit drive field effect transistor conducting or shutoff or the light modulation in corresponding loop;
Step S10, the LED lamp in corresponding loop is lighted or is extinguished or light modulation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101022422A CN103369775A (en) | 2012-04-03 | 2012-04-03 | LED illumination control system and control method thereof |
| PCT/CN2013/000377 WO2013149499A1 (en) | 2012-04-03 | 2013-04-01 | Led lighting control system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101022422A CN103369775A (en) | 2012-04-03 | 2012-04-03 | LED illumination control system and control method thereof |
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| CN103369775A true CN103369775A (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101022422A Pending CN103369775A (en) | 2012-04-03 | 2012-04-03 | LED illumination control system and control method thereof |
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| CN (1) | CN103369775A (en) |
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