CN209419925U - A kind of LED street lamp control circuit - Google Patents

Abstract

The utility model provides a kind of LED street lamp control circuit, including control power supply, single-chip microcontroller, amplifying circuit and booster circuit, detection circuit, power adapter, wireless communication module；Detection circuit includes resistor voltage divider circuit and current sampling circuit.Connection relationship are as follows: control power supply connects single-chip microcontroller；Single-chip microcontroller and the LED module in amplifying circuit, booster circuit, the external world are sequentially connected with, and detection circuit input terminal connects LED module, and output end is connected to single-chip microcontroller；Power adapter input terminal connects alternating current, and output end is connect with booster circuit；Wireless communication module is connect with single chip communication mouth.

Description

A kind of LED street lamp control circuit

Technical field

The utility model relates to control circuit technical fields, and in particular to a kind of LED street lamp control circuit.

Background technique

Since founding of New in 1949, the street lamp in China experienced manual control, timed manner, light-operated mode three Nowadays stage is fully achieving the intelligent control of street lamp.Past manual control is time-consuming and laborious, consumes a large amount of manpower wealth Power is filled with flaws, and the street lamp in damage bosom can be often seen on street corner even expressway.And now in LED intelligent control technology Under support, intelligent road-lamp cities and towns big and small throughout China, but at the same time, people have been found that intelligent road-lamp exists Great defect: serious waste electric energy electric resources.In terms of being mainly reflected in following two:

(1) period in evening is very long, and different periods such as dusk, the late into the night, desirable light levels are different. But most of street lamps all remain 100% brightness in entire evening, cause great waste of resource.We should basis Specific time, place and flow of the people situation go the brightness of setting lamp, make full use of the thought to break the whole up into parts, at night according to the time Section, flow of the people are divided into several stages, go to be arranged the brightness of differently lighting of each stage respectively.

(2) street lamp that China is taken now is mostly high-pressure sodium lamp, and high-pressure sodium lamp power-efficient is low, power consumption is also very big, is led to The high-pressure sodium lamp of normal standard 250W, whole power consumption is in 307W or so, and power-efficient is 66.8% or so --- and it is high-power At high cost with regard to meaning simultaneously, since power is big, the diameter of the laying copper of use is thicker, makes added cost；Moreover, high-pressure sodium lamp Need dedicated booster power power supply that could be lighted, the variation of brightness needs to be delayed, and is unable to transient state change, brightness controllability It can be poor.In this regard, it has been proposed that and attempt with " every the mode of two bright one ", in the road lighting at night by reduction power disappear Consumption energy conservation.But this mode can make road surface there are shadow region, safety can not ensure between the gap between two street lamps, Street lamp may be made flickering.The requirement of Lighting Design of Urban Road standard it is not able to satisfy first in this way, maximum problem is The pedestrian and vehicle that night passes through are influenced, titanic peril is caused.

Utility model content

To solve the above problems, the utility model provides a kind of LED street lamp control circuit.Including controlling power supply, monolithic Machine, amplifying circuit and booster circuit, detection circuit, power adapter, wireless communication module；Detection circuit includes electric resistance partial pressure electricity Road and current sampling circuit.

Connection relationship are as follows: control power supply connects single-chip microcontroller, powers for single-chip microcontroller；Single-chip microcontroller and amplifying circuit, booster circuit, Extraneous LED module is sequentially connected with, and detection circuit input terminal connects LED module, and output end is connected to single-chip microcontroller；Power adapter Input terminal connects alternating current, and output end is connect with booster circuit；Wireless communication module is connect with single chip communication.

Further, the amplifying circuit is transistor amplifier.

Further, power adapter is switched using HLG-60W-24 single group.

Further, single-chip microcontroller uses STC15 series monolithic.

Further, the wireless communication module is using ZigBee communication module or bluetooth module or wifi module.

Further, the control power supply uses bridge rectifier voltage regulator circuit.

Further, booster circuit uses MC34063A_BOOST booster circuit.

Further, LED module, which is used, combines LED module with gelled multi-wafer.

The utility model has the following beneficial effects:

The utility model successfully realizes that wireless short-distance communicates, can be by wireless communication by the electrical parameter that module acquires Module is sent by specified agreement, is received by street lamp central controller.Wireless communication module, which is received, concentrates control from street lamp The instruction that device processed is sent realizes three open and close of LED street lamp mould group, light modulation design requirements using this circuit.Detection circuit is same When there is feedback function, single-chip microcontroller can carry out more anxious accurate adjusting to LED module according to feedback information.When detected value is more than When normal range of operation, single-chip microcontroller can generate alarm command, and module is sent by wireless communication, by street lamp central controller It receives and according to circumstances handles.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is overall structure figure of the present invention.

Fig. 2 is an examples of circuits of the invention.

Specific embodiment

To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than comprehensively Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work Obtained all other embodiment is put, the range that the utility model is protected is belonged to.

As shown in Figure 1, the utility model includes control power supply, single-chip microcontroller, amplifying circuit and booster circuit, power supply conversion Device, LED module, detection circuit, wireless communication module.

The connection relationship of above-mentioned various pieces are as follows: control power supply connects single-chip microcontroller, powers for single-chip microcontroller；Single-chip microcontroller and amplification Circuit, booster circuit, LED module are sequentially connected with, and detection circuit input terminal connects LED module, and output end is connected to single-chip microcontroller；Electricity Source converter input terminal connects alternating current, and output end is connect with booster circuit；Wireless communication module is connect with single chip communication.

Control power supply is used to provide electric energy for single-chip microcontroller.The power supply arranges voltage regulator circuit by the bridge-type that 220V turns 5V and provides, It is 0-1.5A that it, which exports electric current,.

Single-chip microcontroller enters command adapted thereto for operator's burning as needed, these instructions should be used to receive wireless transmission The input signal of module and detection circuit is handled signal, output signal.As shown in figure 1, ZigBee terminal (aftermentioned nothing One kind of line communication module) command signal is transferred in single-chip microcontroller, single-chip microcontroller is exported according to instruction adjustment to amplifying circuit The duty ratio of PWM wave.The data of single-chip microcontroller also receiving test circuit acquisition, and ZigBee terminal transmission will be passed through after data processing It goes out.The present embodiment uses the single-chip microcontroller of STC15 series.It is compared with common 80C51 single-chip microcontroller, STC15W4K48S4 is not required to External crystal-controlled oscillation and external reset are wanted, the trouble of hardware circuit is reduced.It is sampled with ADC, collection voltages are adopted by detection circuit Colleeting comb is simultaneously dimmed with realization PWM under coordinator communication role.Because of the ADC module that the series monolithic itself has, meet The demand of PWM pulse modulation technology, it is not necessary to external A/D conversion circuit again, it is low in energy consumption and at low cost.

Wireless communication module is used for transmission the extraneous instruction sent, and transmits detection data.Wireless communication module can be adopted With the technology in existing society, such as ZigBee communication module, bluetooth module, between wifi module, with single-chip microcontroller according to technology Personnel are attached according to the actual situation, and single-chip microcontroller all has communication port.Therefore, connection type does not also belong to without repeating In the innovative part of the utility model.It is preferable to use ZigBee communication modules for the present embodiment.The wireless sensor network of ZigBee by Terminal node, routing node, coordinator node composition.It establishes ZigBee-network and needs coordinator, node, each network is only There can be a coordinator.All end sensor nodes, all have the function of wireless communication, sensor module, data processing etc., bear Duty is initiated to send the data to coordinator node by self-organization of network and multihop routing with forwarding data.The utility model is not Using routing node.

Amplifying circuit and booster circuit constitute the driving circuit to LED module.

Amplifying circuit is used to amplify PWM wave that single-chip microcontroller exports, through ovennodulation, acts in booster circuit output voltage Under, voltage magnitude PWM wave needed for producing.Existing amplifying circuit can be used.The present embodiment uses transistor amplifier (such as Shown in Fig. 2), the PWM wave that 5V frequency is 100HZ is changed into the PWM wave of 10V.

AC conversion is current-variable DC power supply according to the duty ratio of PWM wave by power adapter.Circuit can be used Existing maturation circuit module, and generally it is provided with control terminal, power input, power output end, control terminal and driving circuit Output end connection, power input connect the output end of electric pressure converter, and power output end connects LED module.The present embodiment benefit Output driving power supply is switched with HLG-60W-24 single group: the mains input voltage 160V~240V can be connect, in different duty 10V- Under the control of PWM wave, up to 22-27V, electric current exports to be changed voltage output between 1.5-2.5A.

Booster circuit is used to convert the voltage of controlling power circuit to the control terminal electricity of the driving power of suitable LED module Pressure.The present embodiment that boosts uses MC34063A_BOOST booster circuit module.The module is one based on chip MC34063A Low-voltage can be raised to high voltage required in a certain range, adjust output voltage by potentiometer by small-sized boost module.It is excellent Point is that module size is small, easy to carry, and output voltage is adjustable.Input voltage range: 3.6V~30V；Output voltage range: 3.8V~36V；Load regulation: < 5%.

Detection circuit for Acquisition Circuit work when voltage and current, and by collected data be transferred to single-chip microcontroller into Row processing.Single-chip microcontroller adjusts the output signal to amplifying circuit according to sampled signal, preferably to adapt to LED module to voltage It is required that.As shown in Fig. 2, detection circuit includes current sampling circuit, resistor voltage divider circuit.Resistor voltage divider circuit is set to LED mould Between the positive input section of group and negative input, it is connected in series by several resistance, close to two adjacent electricity of LED negative input The interface of resistance is grounded.Single-chip microcontroller connect with the two adjacent resistors be separately connected at the both ends of circuit, respectively collection voltages, Acquire electric current.Certainly, this is an example, and those of ordinary skill changes according to the actual situation or decide in its sole discretion detection circuit Connection type, as long as can achieve the purpose that acquire electric current, voltage.

It is set to the resistor voltage divider circuit of LED module forward direction input section and negative input and is connected to the input of LED negative sense The current sampling circuit at end.Connect with single-chip microcontroller so that make monolithic function collect except voltage electrical parameter data (electric current, Power etc.).Fig. 2 is one embodiment of the present of invention, it can be seen that is connected in the positive input and negative input of LED module It is connected to several concatenated resistor voltage divider circuit of resistance (R1-R5, R6 in figure),

LED module is used with gelled multi-wafer combination LED module as street lamp, cooling fin by product power supply and The heat derives of LED light chip keep the light decay of LED light and service life more secure.LED module is arranged by LED lampet, Brightness is convenient for detecting greatly.10 DEG C~50 DEG C of operating temperature.And lamp output voltage 5V~24V, output electric current only have 0.1A or so, Then output power is small, meets the demand of world today's energy-saving and emission-reduction.

It is illustrated in figure 2 one embodiment of the utility model.It can be seen that including STC15W4K48S4 and its periphery electricity Road, transistor amplifier (Q1), MC34063A_BOOST booster circuit module, resistor voltage divider circuit, voltage and current detecting Circuit, power-switching circuit HLG-60W-24, LED module.

It is above-described, only specific embodiment of the present utility model, but the protection scope of the utility model not office It is limited to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in change Change or replace, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with described Scope of protection of the claims subject to.

Claims (8)

1. a kind of LED street lamp control circuit, it is characterised in that: including control power supply, single-chip microcontroller, amplifying circuit and booster circuit, Detection circuit, power adapter, wireless communication module；Detection circuit includes resistor voltage divider circuit and current sampling circuit；Amplification Circuit and bleeder circuit constitute the driving circuit of LED module；

Connection relationship are as follows: control power supply connects single-chip microcontroller；Single-chip microcontroller and amplifying circuit, booster circuit, the external world LED module sequentially Connection, detection circuit input terminal connect LED module, and output end is connected to single-chip microcontroller；Power adapter input terminal connects alternating current, defeated Outlet is connect with booster circuit；Wireless communication module is connect with single chip communication mouth.

2. LED street lamp control circuit as described in claim 1, it is characterised in that: the amplifying circuit is triode amplification electricity Road.

3. LED street lamp control circuit as described in claim 1, it is characterised in that: power adapter is mono- using HLG-60W-24 Group Switching Power Supply.

4. LED street lamp control circuit as described in claim 1, it is characterised in that: single-chip microcontroller uses STC15 series monolithic.

5. LED street lamp control circuit as described in claim 1, it is characterised in that: the wireless communication module uses ZigBee Communication module or bluetooth module or wifi module.

6. LED street lamp control circuit as described in claim 1, it is characterised in that: the control power supply is steady using bridge rectifier Volt circuit.

7. LED street lamp control circuit as described in claim 1, it is characterised in that: booster circuit uses MC34063A_BOOST Booster circuit.

8. LED street lamp control circuit as described in claim 1, it is characterised in that: LED module is used with gelled polycrystalline Piece combines LED module.