CN201039533Y

CN201039533Y - A time division and automatic LED road lamp controller

Info

Publication number: CN201039533Y
Application number: CNU2007200512467U
Authority: CN
Inventors: 樊邦弘
Original assignee: Heshan Lide Electronic Enterprise Co Ltd
Current assignee: Heshan Lide Electronic Enterprise Co Ltd
Priority date: 2007-05-07
Filing date: 2007-05-07
Publication date: 2008-03-19
Anticipated expiration: 2017-05-07

Abstract

The utility model belongs to a period-dividing and automated LED street lamp controller used for the power supply and control of the outdoor street lamp lightening system on the city roads and community industrial plant areas. The period-dividing and automated LED street lamp belonging to the technical field of automatic control realizes automatic optic-control and time-control, so as to ensure steady voltage and power energy conservation. The period-dividing and automated LED street lamp comprises a switching power supply output terminal, the impulse width modulating input terminal of a voltage-increasing and constant current module, and a controlling circuit connected between the switching power supply output terminal and the impulse width modulating input terminals of the voltage-increasing and constant current module. The controlling circuit is provided with a single-sheet machine chip and a photoconductive resistor, one end of the photoconductive resistor is connected with the voltage guiding pin terminal of the single-sheet machine chip by a resisting unit, and the other end is grounding. According to the light-inductive principle of the photoconductive resistor and the running control of the programme of the single-sheet machine chip, the utility model has the advantages of automatic control, time-dividing adjusted light strength, energy conservation, convenient walking and resting, night scene beautification, which is also beneficial to reinforcing social security preventing, improving working stability as well as prolonging service life, etc.

Description

A kind of at times, automation LED controller for road lamp

Affiliated technical field

The utility model belongs to the automatic control technology field, particularly relate to the power supply and the control of urban road and outdoor street lamp illumination system such as community, industrial working, realize automatic light-operated, time control with guarantee stable voltage and saves energy a kind of at times, automation LED controller for road lamp.

Background technology

Street lamp is widely used in the illumination in places such as the square, road, residential block of modern city, and the control of traditional lighting street lamp all is to adopt the manual closing operation method, is closed a main switch by operating personnel in the time of at dusk, opens bright street lamp; Draw back electric brake by operating personnel second day early morning again, close street lamp, make street lamp become like this and open bright light fixture normal night, thereby the controller for road lamp that is used to control the street lamp folding has vast market, adopts automatic control type though also have, and also is that the street lamp of entire road opens bright simultaneously usually, extinguish simultaneously, street lamp all opens brightly during the time after midnight like this, and luminous environment is seriously polluted, influences people's rest.

Therefore, the someone adopts timing clock control, photo-electric control or computer control technology, has solved the problems referred to above relatively.But timing clock when control because its apparatus structure is too simple, by adjust in the timing clock to driving the next timing of the pairing time location in contact open and close street lamp, simultaneously, differ too big throughout the year round the clock, the control time deviation is very big, influences the time and the effect of night lighting; Adopting photo-electric control is to utilize the power of light to control the open and close of street lamp, though can not be subjected to the influence of weather like this, but can't realize " evening lamp " control, this makes the people that are in a hurry in the time after midnight inconvenience of walking, and also can bring social security to take precautions against difficult problem simultaneously; And adopt computer control, and its apparatus structure complexity, cost are too high, and fatal weakness is more arranged, in case have a power failure, device can't operate as normal.

Summary of the invention

There is mirror therewith, the purpose of this utility model is in order to solve the above-mentioned problem that proposes, provide a kind of and can control automatically, energy-conservation, convenient walking at night and have a rest, beautify night scene, strengthen social security strick precaution, good operating stability, long service life a kind of at times, automation LED controller for road lamp.

To achieve these goals, the technical scheme that the utility model adopted be at times, automation LED controller for road lamp, comprise the pulse width modulation input of Switching Power Supply output, voltage increase and current constant module and be connected the Switching Power Supply output and the pulse width modulation input of voltage increase and current constant module between control circuit, it is characterized in that: described control circuit is provided with singlechip chip and photo resistance, one end of this photo resistance is connected other end ground connection by impedance component with the voltage pin end of singlechip chip.

Described controller also comprises the low-voltage DC source circuit.

Described low-voltage DC source circuit is made up of diode, resistance, electric capacity and three terminal regulator, wherein, the be linked in sequence input of diode, resistance and three terminal regulator of Switching Power Supply output, export its low-voltage, simultaneously, between the input of resistance and three terminal regulator and be connected in parallel a respectively end of electric capacity of the output of three terminal regulator, the other end that should and connect electric capacity is ground connection respectively.

The pin of described singlechip chip is connected with the external clock pulse circuit.

Described clock-pulse circuit is made up of electric capacity and crystal oscillator, wherein, two electric capacity parallel connections, an end ground connection, the other end is connected with the two ends of crystal oscillator respectively, and an end of crystal oscillator is connected with a pin of singlechip chip, and the other end of crystal oscillator is connected with another pin.

Also be connected with the interface socket that external program writes on the pin of described singlechip chip.

The utility model compared with prior art, its beneficial effect is: the utility model is the access control circuit between the pulse width modulation input of Switching Power Supply output and voltage increase and current constant module, this control circuit is provided with singlechip chip and photo resistance, when photosensitive electronics received illumination, the electric current that flows through photo resistance increased with illumination; When incident light disappeared, electric current also reduced gradually.Therefore, according to the light sensitivity principles of photo resistance, when outdoor sunshine during less than 13LUX, street lamp is lighted under the operation of Single Chip Microcomputer (SCM) program control automatically, and after lighting automatically preceding 6 hours are full brightness, and this is period before midnight just also, for people's walking provides convenience, beautify the environment simultaneously; Through street lamp after 6 hours is half bright, and the duration is 4 hours, so promptly can save electric energy, prolong useful life of street lamp, can provide convenience for people's walking of being in a hurry the time after midnight again, has strengthened keeping a lookout of public security, and the while does not influence people's rest yet; After lighting time was 10 hours, street lamp extinguished automatically, has both saved electric energy, also do not influence people's on daytime normal life, and circuit has good job stability.

Description of drawings

Fig. 1 is circuit theory diagrams of the present utility model.

Embodiment

Is the function and benefit of further understanding architectural feature of the present utility model in depth and can reach, now enumerates specific embodiment, and detailed introduction of conjunction with figs. is described as follows:

At times a kind of, automation LED controller for road lamp, as shown in Figure 1, the Switching Power Supply output of this LED controller for road lamp is connected with dc supply input, this DC power supply circuit is by diode, resistance, electric capacity and three terminal regulator are formed, wherein, the Switching Power Supply output is exported its DC (21V-27V) voltage buck diode D2 that is linked in sequence, the input of resistance R 1 and three terminal regulator U1, export its low pressure, simultaneously, for guaranteeing that in addition the voltage of exporting is more stable, between the input of the output of resistance R 1 and three terminal regulator U1, the output of three terminal regulator U1, with electrochemical capacitor C1 and common electric capacity C2, the end of electrochemical capacitor C3 and common electric capacity C4 is connected in parallel in proper order, and electrochemical capacitor C1 and C3 respectively, the other end of common electric capacity C2 and C4 is ground connection respectively.

Describedly between pulse width modulation (PWM) input of Switching Power Supply output and voltage increase and current constant module, be connected with a control circuit, this control circuit is provided with singlechip chip U2 and photo resistance CDS, the end of this photo resistance CDS is connected with the pin 6 of singlechip chip by resistance R 2, the other end ground connection of photo resistance CDS, and between the pin 6 and pin 3 of singlechip chip U2, the capacitor C 7 that inserts in parallel, simultaneously, the two ends of the photo resistance CDS capacitor C 5 that inserts in parallel.

Also be connected with clock-pulse circuit on the pin 7 and 8 of described singlechip chip U2, this circuit is made up of electric capacity and crystal oscillator.Wherein, capacitor C 8 and C9 parallel connection, an end ground connection, the other end is connected with the two ends of crystal oscillator X1 respectively, and the end of crystal oscillator X1 is connected with the pin 7 of singlechip chip U2, and the other end of crystal oscillator X1 is connected with pin 8.Simultaneously, be connected to the pin 23 of singlechip chip U2 between photo resistance CDS and the resistance R 2.

Also be connected with the interface socket J1 that external program writes on the pin of described singlechip chip U2.This interface socket J1 is provided with 6 leads ends, 1 pin ground connection, and 2 pin are connected with the pin 17 of singlechip chip U2,3 pin are connected with the pin 16 of singlechip chip U2,4 pin are connected with the pin 15 of singlechip chip U2, and 5 pin are connected with the pin 29 of singlechip chip U2, and 6 pin meet DC power supply VCC.

During operate as normal, experiencing extraneous sunlight when photo resistance dies down gradually, that is to say that by the program running control that interface socket J1 writes, street lamp is lighted automatically when outdoor sunshine during less than 13LUX, preceding 6 hours after lighting is full brightness, under the control of program, transfer half bright state to through street lamp after 6 hours, half bright will be 4 hours the duration, finish to half bright duration from lighting street lamp, after approximately lighting time is 10 hours, street lamp shutdown automatically under the control of program again.And the output of singlechip chip U2 also is connected with pulse width modulation (PWM) end of voltage increase and current constant module, can be according to the variation of external environment or the brightness of particular demands adjustment street lamp.

In sum, the utility model provide a kind of at times, automation LED controller for road lamp, through actual fabrication, finish and test repeatedly after, reached the desired purpose of the utility model, solved existing weak point in the prior art effectively.Yet, more than the specific embodiment of lifting only be that technical characterictic of the present utility model and technology contents are described in further detail, shown in accompanying drawing only for reference with the explanation usefulness, be not to be used for the utility model is limited.

Claims

One kind at times, automation LED controller for road lamp, comprise the pulse width modulation input of Switching Power Supply output, voltage increase and current constant module and be connected the Switching Power Supply output and the pulse width modulation input of voltage increase and current constant module between control circuit, it is characterized in that: described control circuit is provided with singlechip chip and photo resistance, one end of this photo resistance is connected other end ground connection by impedance component with the voltage pin end of singlechip chip.
2. according to claim 1 at times, automation LED controller for road lamp, it is characterized in that: described controller also comprises the low-voltage DC source circuit.
3. according to claim 2 at times, automation LED controller for road lamp, it is characterized in that: described low-voltage DC source circuit is made up of diode, resistance, electric capacity and three terminal regulator, wherein, the be linked in sequence input of diode, resistance and three terminal regulator of Switching Power Supply output, export its low-voltage, simultaneously, between the input of resistance and three terminal regulator and be connected in parallel a respectively end of electric capacity of the output of three terminal regulator, the other end that should and connect electric capacity is ground connection respectively.
4. according to claim 1 at times, automation LED controller for road lamp, it is characterized in that: the pin of described singlechip chip is connected with the external clock pulse circuit.
5. according to claim 4 at times, automation LED controller for road lamp, it is characterized in that: described clock-pulse circuit is made up of electric capacity and crystal oscillator, wherein, two electric capacity parallel connections, one end ground connection, the other end is connected with the two ends of crystal oscillator respectively, and an end of crystal oscillator is connected with a pin of singlechip chip, and the other end of crystal oscillator is connected with another pin.
6. according to claim 1 at times, automation LED controller for road lamp, it is characterized in that: also be connected with the interface socket that external program writes on the pin of described singlechip chip.