CN104619080A

CN104619080A - Energy-saving LED street lamp

Info

Publication number: CN104619080A
Application number: CN201410835263.4A
Authority: CN
Inventors: 武真真
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-12-24
Filing date: 2014-12-24
Publication date: 2015-05-13

Abstract

The invention provides an energy-saving LED street lamp. The energy-saving LED street lamp is characterized by comprising 1, a single-chip microcomputer, 2, an environment monitoring module, 3, a power supply module, 4, a parameter setting module, and 5, a display module; the single-chip microcomputer is connected with the environment monitoring module to detect the luminance state of the environment; the parameter setting module is connected with the single-chip microcomputer to set corresponding parameters; the display module is connected with the single-chip microcomputer to display a fault; the power supply module is connected with the single-chip microcomputer, the environment monitoring module, the parameter setting module and the display module to supply working power.

Description

A kind of energy-saving LED road lamp

Technical field

The present invention relates to energy-conserving control technology field, particularly a kind of energy-saving LED road lamp.

Background technology

The consumption of the Present Global energy increases severely and the life that the energy caused is extremely in short supply, severe power shortage has jeopardized us, and energy savings becomes the very eager problem faced.LED illumination, as a kind of novel green light source product, has the feature that advantage, volume are little, the life-span is long of energy-conserving and environment-protective, the necessarily development trend of following general lighting.

Summary of the invention

For the deficiencies in the prior art, invent a kind of energy-saving LED road lamp, take single-chip microcomputer as control core, the intelligent road-lamp Lighting Control Assembly that designs for road lighting of application LED illumination light source, thus make to exist in existing road lighting control system be difficult to the various state status of feedback street lamp, do not have the problems such as timely switch street lamp, energy utilization rate are low to improve.Adopt the LED of energy-conserving and environment-protective as light source, adopt scientific and effective Test and control, achieve timing display running time, constant-current source driving LED street lamp, according to functions such as traffic conditions switch street lamp, fault detect and warning displays, save energy resources, reduce system operation cost, cost performance is higher, has realistic meaning.

The present invention adopts following technical scheme:

A kind of energy-saving LED road lamp, it is characterized in that, it comprises: single-chip microcomputer, monitoring of environmental module, power supply module, parameter setting module, display module; Described single-chip microcomputer is connected with described monitoring of environmental module, the light and shade situation of testing environment; Described parameter setting module is connected with described single-chip microcomputer, arranges corresponding parameter; Described display module is connected with described single-chip microcomputer, display fault; Described power supply module is connected with single-chip microcomputer, monitoring of environmental module, parameter setting module, display module, for it provides working power.

Preferably, described controller is 51 series monolithics, and model selects AT89S51.

Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.

Accompanying drawing explanation

Fig. 1 is embodiment of the present invention structural representation.

Embodiment

Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.

As shown in Figure 1, a kind of energy-saving LED road lamp, is characterized in that, it comprises: 1, single-chip microcomputer, 2, monitoring of environmental module, 3, power supply module, 4, parameter setting module, 5, display module; Described single-chip microcomputer is connected with described monitoring of environmental module, the light and shade situation of testing environment; Described parameter setting module is connected with described single-chip microcomputer, arranges corresponding parameter; Described display module is connected with described single-chip microcomputer, display fault; Described power supply module is connected with single-chip microcomputer, monitoring of environmental module, parameter setting module, display module, for it provides working power.

Power supply module adopts circuit of three-terminal voltage-stabilizing integrated.Through bridge rectifier filtering after employing transformer pressure-reducing, then obtain DC power supply through three terminal regulator.

LED monitoring of environmental module, whether the intensity that environment light and shade change sensor environment light and shade change sensor mainly detects light should switch street lamp, and system adopts photodiode and amplifier comparator as the transducer of light-metering and fault detect.Photosensitive detecting sensor circuit, when daytime, light injected the glass window of photodiode, the charge carrier of PN junction is excited, and produces electron-hole, i.e. photocurrent carrier.Under the effect of electric field, photocurrent carrier participates in conduction, forms the reverse current more much bigger than dark current, is called photoelectric current.Now+5V voltage flows through photodiode, and when input terminal voltage is reduced to the threshold voltage of inverter 74HC04, inverter overturns, and single-chip microcomputer P2.1 port reads in high level, and Single-chip Controlling closes LED street lamp.When the low light level or unglazed photograph (evening), because the dark resistance of photodiode is very large, the input terminal voltage of reverser is higher, makes it export as low level, and Single-chip Controlling opens LED street lamp.Traffic detecting sensor adopts infrared sensor automatically to regulate the light on and off state of street lamp, namely when vehicle arrives in infrared sensor range of receiving, LED street lamp is bright, after going beyond the scope, LED street lamp is gone out, and whole piece system control lines is not always the case, thus improves energy utilization rate and save electric energy.Sound and light alarm acoustic-optic alarm is the basic device that buzzer and light-emitting diode send sound and light alarm.When in system branch road, LED street lamp does not work, be now judged as that street lamp breaks down, adopt the method detected with light sensor whether light to detect LED street lamp or go out in system, thus differentiate whether have fault.When there being fault, Micro Controller Unit (MCU) driving buzzer warning makes corresponding LED lighting simultaneously, by the address number of LED numeral method current failure street lamp, to adjust in time.The LED circuit of Constant-power drive, first exceeds maximum rating for avoiding drive current, affects its reliability; Second brightness requirement that will obtain expection, and ensure the consistency of each LED luminance, colourity.LED constant current source driver module is adopted to this, ensures its energy-saving run.

The present invention selects that cost performance is high, the illumination of the constant-current driving LED of improvement in performance.Because the stable luminescence degree of LED and efficiency and its temperature, the time that runs without interruption, inherent parameters are closely related, along with the rising of temperature, its luminous efficiency can decline.If adopt " constant temperature " circuit to ensure LED self performance, cause that hardware cost is high, stability declines.Adopt constant-current drive circuit herein, the luminous intensity (luminous power) that this circuit advantage keeps LED to export for constant, thus eliminates the fluctuation of light source, improves the utilance of the energy.

The amendment of setting parameter and display module current date and time and setting; The setting of street lamp mode of operation; The detection of street lamp fault and the display of corresponding unit fault, the address number of fault street lamp, realizes fault alarm Presentation Function.

System program flow process is: system initialization laggard enter street lamp default mode of operation.The mode of operation of system default is testing environment Switch for bright or dim light pattern, and environmentally light intensity judges whether to open LED street lamp.When entering set model and arranging, the pattern of setting comprises: the setting of the setting of power output, the setting of date and time, mode of operation, the warning of corresponding unit fault and display.Set the input of the extraneous detection signal of rear wait, judge to be received as normal switch street lamp signal, environmental monitoring signal, traffic signal, single-chip microcomputer process corresponding signal, then control switch street lamp, and the accumulative road lamp switch time, by LED numeral method.When there being fault, Micro Controller Unit (MCU) driving buzzer warning makes corresponding LED lighting simultaneously, by the address number of LED numeral method current failure street lamp, to adjust in time.

This system light and shade change environmentally can be turned on light and turns off the light automatically, when daytime at day lamp go out, when environment is gradually dimmed, it is bright to fall temporary lamp night.And the light on and off state of street lamp automatically can be regulated according to traffic conditions, when namely Pedestrians and vehicles comes, lamp is bright, and lamp goes out later, and each street lamp is not always the case, and this just saves electric energy greatly.This system has time clock feature, can time of set and display switch lamp, and can control whole piece branch road or every street lamp is turned on light on time and turns off the light.Sound and light alarm can be sent in time when street lamp breaks down, and on LCD, show the address number of trouble light.Test result shows, streetlamp driving power supply power output can reduce by setting requirement automatically in the stipulated time, and this power can set and regulate in 10% ~ 100% scope, and regulating error is less than 2%, achieve the intelligentized control method of street lamp, save electric power energy and human resources.

Above a kind of energy-saving LED road lamp that the embodiment of the present invention provides is described in detail; for one of ordinary skill in the art; according to the thought of the embodiment of the present invention; all will change in specific embodiments and applications; in sum; this description should not be construed as the restriction to invention, and all any changes made according to design philosophy of the present invention are all within protection scope of the present invention.

Claims

1. an energy-saving LED road lamp, is characterized in that, it comprises: single-chip microcomputer, monitoring of environmental module, power supply module, parameter setting module, display module; Described single-chip microcomputer is connected with described monitoring of environmental module, the light and shade situation of testing environment; Described parameter setting module is connected with described single-chip microcomputer, arranges corresponding parameter; Described display module is connected with described single-chip microcomputer, display fault; Described power supply module is connected with single-chip microcomputer, monitoring of environmental module, parameter setting module, display module, for it provides working power.