The method of centralized control light and system thereof
Technical field the present invention relates to the distant process control technical field of power distribution, particularly relates to the method and system with digital coding mode centralized control multichannel light load.
In background technology office block, residential building and the hotel, generally special light switchgear house is set all, is provided with the knife switch distribution board in this light switchgear house, the civil power of hundreds of ampere is reallocated electric current to each output loop through distribution board.On each output loop, be parallel with a plurality of illuminating lamps respectively.The break-make of each lighting lamp power is by controlling with the switch of its polyphone, as shown in Figure 1.Above-mentioned prior art lamp light control system has the following disadvantages:
1. the break-make of each lighting lamp power can only be by local switching manipulation, and control is inconvenient;
2. it is loaded down with trivial details to connect up, and control system uses the switch equipment many, the equipment cost height;
3. construction is complicated, the cost height;
4. maintenance is inconvenient.
The summary of the invention the technical problem to be solved in the present invention be to avoid above-mentioned the deficiencies in the prior art part and propose a kind ofly to control conveniently, construction and easy to maintenance and and the method and system of centralized control light with low cost.
The present invention solve the technical problem can be by realizing by the following technical solutions:
Proposing a kind of method of centralized control light, is the output loop that connects and composes sealing between the positive and negative output of main control unit with lead, and each lamp source is connected an auxilliary control device respectively separately; And with in the lead coupling of described each auxilliary control device and described output loop or the described output loop of access of will described each auxilliary control device connecting; Corresponding described each lamp source is provided with respective coding respectively, needs the coding of controlled lamp source to described main control unit input, and this main control unit produces coding control signal electric current and output, after auxilliary control device is decoded to control described lamp source.
The present invention solve the technical problem can also be by realizing by the following technical solutions:
Design, use centralized control lighting system, comprise main control unit, lamp source, the auxilliary control device identical with lamp source quantity, this auxilliary control device comprise current sensing, amplifier, decoder and the switching device that is electrically connected successively again, and this switching device is electrically connected with lamp source; Described main control unit comprises that central processing unit, input coding device, coding control signal produce circuit and main amplifier, described input coding device and coding control signal produce circuit and are electrically connected with central processing unit respectively, and described coding control signal produces circuit and is electrically connected with described input coding device and main amplifier respectively again; Connect into output loop by a lead between the both positive and negative polarity output of the main amplifier of described main control unit, the lead coupling of described current sensing and described output loop.
The current sensing of the auxilliary control device of above-mentioned centralized control lighting system can be substituted by the RC circuit, and the resistance string of described RC circuit connects in the described output loop.
Compare with prior art, technique effect of the present invention is:
1. the power supply control for lighting system is by switching the power switch of distribution board in the prior art, for the single lamp source of Long-distance Control, needs the wiring of many complexity; And the present invention is no matter be for the power supply control of whole lighting system or for single fluorescent tube control, can carry out Long-distance Control by input coding device on the main control unit such as touch control screen, and light control outlet line only needs one, control simple and convenient, wiring is simple, and cost is low.
The present invention for control model such as single, group or all the control isotype of lamp source can set arbitrarily.
3. control appliance and wire rod that control system of the present invention is used are few, and cost is low.
4. no matter insert how many lamp source, light control outlet line all only needs one, and construction is simple, has reduced construction cost significantly; When breaking down, maintenance is also convenient.
Description of drawings
Fig. 1 is a prior art lamp light control system schematic diagram;
Fig. 2 is the schematic diagram of centralized control light method of the present invention;
Fig. 3 is the schematic diagram of centralized control lighting system embodiment one of the present invention;
Fig. 4 is the schematic diagram of centralized control lighting system embodiment two of the present invention;
Fig. 5 is the schematic diagram of centralized control lighting system embodiment three of the present invention;
Fig. 6 is the block diagram of the main control unit of system of the present invention;
Fig. 7 is the circuit theory schematic diagram of the main control unit of system of the present invention.
Embodiment is described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing.
The method of centralized control light of the present invention such as Fig. 2 are to shown in Figure 4, and it comprises step:
1. the output loop 4 of sealing will be connected and composed between the positive and negative output of main control unit 1 with lead;
2. each lamp source 2 is connected an auxilliary control device 3 respectively separately;
3. described each auxilliary control device 3 inserts this output loop 4 with the lead of described output loop 4 by sensors coupled or polyphone;
4. corresponding described each lamp source 2 is provided with respective coding respectively, described coding be directly fixed in the central processing unit of described main control unit or;
5. the coding that needs controlled lamp source 2 to described main control unit 1 input, generate corresponding encoded control signal and output by this main control unit 1, then through auxilliary control device 3 decodings and output with control signal in order to the current switching of controlling this lamp source and electric current power or the like.
The embodiment of centralized control lighting system of the present invention is just like Fig. 2, shown in Figure 3, comprise main control unit 1 and each lamp source 2, also comprise the auxilliary control device 3 identical with lamp source 2 quantity, should comprise current sensing 31, amplifier 32, decoder 33 and the switching device 34 that is electrically connected successively again by auxilliary control device 3, the main circuit part of this switching device 34 is electrically connected with lamp source 20.
Described main control unit 1 comprises that central processing unit 11, input coding device 12, coding control signal produce circuit 13, coding configuration switch 15 and main amplifier 16 as shown in Figure 6.Described input coding device 12, coding control signal produce circuit 13 and coding configuration switch 15 is electrically connected with central processing unit 11 respectively, and described coding control signal produces circuit 13 and is electrically connected with described input coding device 12 and main amplifier 16 respectively again.Described input coding device 12 is touch liquid crystal screens.Described central processing unit 11 comprises two chip blocks 111 and 112, and chip 111 responsible processing are by the key information and the display message of the input of touch liquid crystal screen, and described chip 112 responsible data are kept in calculating and the processing with database data.The circuit theory diagrams of described main control unit 1 as shown in Figure 7.
As Fig. 2, shown in Figure 6, be connected to form output loop 4 by a lead between the both positive and negative polarity output of the main amplifier 16 of described main control unit 1, described current sensing 31 is coupled with the lead of described output loop 4; Import the coding that needs controlled lamp source 2 by described input coding device 12, described central processing unit 11 receives described input signal, controls described coding control signal generation circuit 13 generation coding control signal electric currents and also exports; When current signal passes through the lead in described loop 4, need the current sensing 31 of the auxilliary control device 3 of controlled lamp source to produce induced current; Described induced current is exported to switching device 34 through described amplifier 32 amplifications and after described decoder 33 decodings, the break-make and the watt level of main circuit directly controlled or control through another more powerful switching device with the break-make of this switching device 34, thereby the break-make and the light and shade of described each lamp source 2 of centralized control realized.
As shown in Figure 2, described switching device 34 is optical controlled bidirectional thyristers; Described current sensing 31 is iron core winding arounds, with the parallel placement of the lead of described output loop 4.If described iron core adopts annular, the lead of described output loop 4 passes through described annular core central authorities, and vertical with the residing plane of this iron core.
The embodiment two of centralized control lighting system of the present invention as shown in Figure 3, and is roughly the same with embodiment one, and difference is that the current sensing in the present embodiment is a Hall element.
The embodiment three of centralized control lighting system of the present invention as shown in Figure 4, comprise main control unit 1, each lamp source 2 and the auxilliary control device 3 identical with lamp source 2 quantity, should comprise RC circuit 35, amplifier 32, decoder 33 and the switching device 34 that is electrically connected successively again by auxilliary control device 3, this switching device 34 is electrically connected with lamp source 20.Described switching device 34 is an optical controlled bidirectional thyrister.
Described main control unit 1 is identical with above-mentioned two embodiment.
Connect into output loop 4 by a lead between the both positive and negative polarity output of described main control unit 1, resistance 35 polyphones of described RC circuit insert in the described output loop 4; Import the coding that needs controlled lamp source 2 by described input coding device 12, described central processing unit 11 receives described input signal, controls described coding control signal generation circuit 13 generation coding control signal electric currents and also exports; Be dispensed to electric current on the described resistance 35 and amplify through described amplifier 32 and after described decoder 33 decodings, export to switching device 34, controlling the break-make of this switching device 34, thereby realize the break-make and the bright-dark degree of the described lamp source 2 of centralized control.