A kind of ATM lamp box energy-saving control system and control method
Technical field
The present invention relates to a kind of lighting energy saving control technology, particularly relate to a kind of ATM lamp box energy-saving control system and control method.
Background technology
The traditional fluorescent lighting technology of the general employing of existing ATM lighting lamphouse adds simple ON-OFF control circuit, controls unified unlatching by artificial or time during night, is in normally open during use, and this technology consume electric power does not meet energy-conservation idea.
Summary of the invention
Purpose of the present invention will overcome the deficiencies in the prior art exactly, a kind of ATM lamp box energy-saving control system and control method are provided, realize that the ATM lighting lamphouse can according to the function of the autonomous brightness adjusting of environmental change, solve the problem that common ATM lamp box is opened the waste electric energy for a long time.
For solving above technical problem, the technical solution adopted in the present invention is: a kind of ATM lamp box energy-saving control system, comprise lamp box, also comprise light sensor and the nearly transducer of people that can work alone, be used for to receive and process the governor circuit module that the sensor sends signal, and the constant-current source circuit module of regulating described lamp box electric current according to the control signal that described governor circuit module is sent.
Further, described governor circuit module includes photosensitive modulus signal converting unit and people's near-lying mode is counted signal conversion unit, be used for respectively described light sensor is become digital signal with the analog signal conversion that the nearly transducer of people sends over, and for the treatment of the microprogram control unit of above-mentioned converting unit digital signal.
Further, the described constant-current source circuit module PWM control unit and the current regulation unit that include the digital control unit that receives and process described governor circuit module transmitted signal and be used for controlling described lamp box electric current.
Further, be better conserver power source, described lamp box adopts LED matrix as light source.
A kind of method of utilizing above-mentioned control system to realize ATM lamp box Energy Saving Control comprises the following steps:
The nearly transducer of described light sensor and people will change and the pedestrian sends to described governor circuit module near the analog signal that produces due to ambient light;
Described governor circuit module is analysed and compared to the signal from the sensor, and the control signal of handling is sent to described constant-current source circuit module, finally completes brilliance control to described lamp box by described constant-current source circuit module.
Further, the analog signal that produces of the nearly transducer of described light sensor and people is counted signal conversion unit by the photosensitive modulus signal converting unit in described governor circuit module and people's near-lying mode respectively and is carried out completing processing by described microprogram control unit after analog-to-digital conversion.
Further, the digital control unit that described constant-current source circuit module arranges by inside receives and processes the signal that the governor circuit module sends over, and send respectively the control signal of finishing dealing with to PWM control unit and current regulation unit, by described PWM control unit and common regulating circuit current switch time of current regulation unit and size of current, thereby complete brilliance control to lamp box.
The technical solution adopted in the present invention makes the ATM lighting lamphouse can be according to natural light intensity and pedestrian's far and near brightness adjusting, sufficient and can reduce brightness operatorless the time and come saves energy at surround lighting, adopt simultaneously LED lamp group to replace conventional fluorescent, thereby realize more preferably energy-saving effect.
Description of drawings
Fig. 1 is each parts connection diagram of the embodiment of the present invention;
Fig. 2 is each parts connection diagram of governor circuit inside modules in the embodiment of the present invention;
Fig. 3 is each parts connection diagram that in the embodiment of the present invention, the constant-current source circuit module realizes controlling the LED lamp box.
In the accompanying drawings:
The 1-light sensor; The nearly transducer of 2-people; 3-governor circuit module; 4-constant-current source circuit module; The 5-lamp box; The photosensitive modulus signal converting unit of 31-; 32-people's near-lying mode is counted signal conversion unit; The 33-microprogram control unit; The 41-digital control unit; The 42-PWM control unit; The 43-current regulation unit.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are further described.
Shown in accompanying drawing 1, a kind of ATM lamp box energy-saving control system and control method, comprise lamp box 5, two groups of light sensors that can work alone 1 and the nearly transducer 2 of people will change and the pedestrian sends to described governor circuit module 3 near the analog signal that produces due to ambient light, 3 pairs of signals from the sensor of described governor circuit module are analysed and compared, and the control signal of handling is fed back to described constant-current source circuit module 4, finally complete brilliance control to described lamp box 5 by described constant-current source circuit module 4.
inner each unit of 2 pairs of governor circuit modules of accompanying drawing 3 connects and working method further describes, described governor circuit module 3 includes microprogram control unit 33, photosensitive modulus signal converting unit 31 and people's near-lying mode are counted signal conversion unit 32, the analog signal that the nearly transducer 2 of described light sensor 1 and people produces is counted signal conversion unit 32 by the photosensitive modulus signal converting unit 31 in described governor circuit module 3 and people's near-lying mode respectively and is carried out completing analyses and comparison by described microprogram control unit 33 after analog-to-digital conversion, according to natural light intensity and whether the people is arranged near sending control information to constant-current source circuit.
in accompanying drawing 3, described constant-current source circuit module 4 includes the digital control unit 41 that receives and process described governor circuit module 3 transmitted signals, and the PWM control unit 42 and the current regulation unit 43 that are used for controlling described lamp box 5 electric currents, described digital control unit 41 receives and processes the signal that governor circuit module 3 sends over, and send respectively the control signal of finishing dealing with to PWM control unit 42 and current regulation unit 43, by described PWM control unit 42 and common regulating circuit current switch time of current regulation unit 43 and size of current, thereby complete the brilliance control to LED.
The present invention can reduce the brightness of ATM lamp box owing to adopting technique scheme when natural daylight abundance and unmanned the use, adopted simultaneously LED lamp group and corresponding constant current source control circuit more to be conducive to the realization of energy-saving effect.
The content that above-described embodiment is illustrated should be understood to these embodiment and only is used for being illustrated more clearly in the present invention, limit the scope of the invention and be not used in, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.