CN204244548U - LED roadway lighting system - Google Patents

Abstract

The utility model discloses a kind of LED roadway lighting system, mainly solve the problem that current road street lamp illuminating power wasting of resources amount is large.Described control section is that control core is connected with and comprises control module that comparator LM393 and photo resistance form and by the time control circuit comprising DS1302 type clock chip and form, single-chip microcomputer is also connected with two infrared sensors, LED group, key circuit, display circuit with AT89C51 system.There is automaticity high, avoid the feature of power wastage.

Description

LED roadway lighting system

Technical field

The utility model relates to road lighting field, specifically a kind of LED roadway lighting system.

Background technology

Current illuminating power consumption accounts for 20% of whole power consumption, the street lamp on road side is one of main consumption of illumination consumption, but people's vehicle flowrate is little on road when some remote roads and the late into the night, morning, under the state that nobody's car passes through even completely, street lamp is still opened, thus causes the waste of electric power energy.

Utility model content

For solving the problem of the street lamp wastes power energy existed in background technology, the utility model proposes a kind of energy conservation of power energy, the LED roadway lighting system of automatic Dominating paths lamp switch.

The technical scheme that the utility model adopts is: a kind of LED roadway lighting system, comprise control section, induction of signal part, control module, time control circuit, LED group, described control section is that control core is connected with and comprises control module that comparator LM393 and photo resistance form and by the time control circuit comprising DS1302 type clock chip and form, single-chip microcomputer is also connected with two infrared sensors, LED group, key circuit, display circuit with AT89C51 system.

Further, two described infrared sensors are arranged on the both sides of road bypass lamp bank respectively.

Further, described LED group comprises 40 lamp pearls, and the parallel connection of every 20 lamp pearls is a road, is divided into two-way.

The beneficial effects of the utility model are: owing to have employed the technical solution of the utility model, the switch of full-automatic control road lamp can be realized, by time control module adjustment busy period and idle period, receive a road pedestrian that gets on the bus by infrared sensor induction and control the switch of street lamp, the adjustment of the brightness of street lamp is carried out by control module, thus save a large amount of electric power energies, also mitigate the spending of the road street lamp electricity charge.

Accompanying drawing explanation

Fig. 1 is the utility model circuit theory diagrams.

Fig. 2 is the utility model control module circuit theory diagrams.

Fig. 3 is the utility model time control modular circuit schematic diagram.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described further.

A kind of LED roadway lighting system as shown in Figure 1, described control section U1 is that control core is connected with and comprises control module that comparator LM393 and photo resistance R16 forms and by the time control circuit comprising DS1302 type clock chip and form, single-chip microcomputer is also connected with two infrared sensors, LED group, key circuit, display circuit with AT89C51 system; Two described infrared sensors are arranged on the both sides of road bypass lamp bank respectively; Described LED group comprises 40 lamp pearls, and the parallel connection of every 20 lamp pearls is a road, is divided into two-way D1, D2.

Control module is made up of intensity collection module and photoelectric conversion module as shown in Figure 2, photoelectric conversion module is made up of comparator LM393, comparator LM393 is connected with single-chip microcomputer P2.3 pin, when the light intensity that intensity collection module photo resistance R16 gathers is stronger, comparator output low level, when light intensity is more weak, comparator exports high level, need according to local environment illumination, adjustable resistance RP2 is regulated to be suitable size, thus the input voltage value of comparator middle port 3 in change figure, in this, as the reference voltage of LM393 work, the resistance of R16 can change according to external environment light intensity, its both end voltage value also can change thereupon, thus light signal is converted to voltage signal, and flow to the port 2 of comparator, in this, as the signal voltage of LM393, the reference voltage of the signal voltage that port 2 accepts by LM393 and port 3 compares, if be greater than reference voltage, export high level, if be less than or equal to reference voltage, output low level, and level signal is exported from port one, thus realize exporting high level under dark situations, output low level under bright condition.

Time control module as shown in Figure 3 with AT89C51 single-chip microcomputer for core, DS1302 clock chip controls corresponding timing, clock has power down not lose function, DS1302 clock chip pin CE, I/O, SCLK is connected respectively P2.2 in single-chip microcomputer, P2.1, P2.0, busy section can arrange and what time starts until what time to terminate, the omnidistance street lamp of busy section is highlighted state, cross busy section lamp glimmer and enter power save mode, when allow messenger or vehicle time current lamp want highlighted state to throw light on, people or vehicle are walked back light and are become glimmer, busy can be regulated by key circuit, daytime closes lamp automatically.

Relay module is had between described LED group and single-chip microcomputer, be used for controlling the light on and off of LED group, avoid directly being connected on single-chip microcomputer and interference is caused to single-chip microcomputer stability, LED group cap part is made up of 40 standard lamp pearls, and every 20 lamp Zhu Wei mono-tunnels, are divided into two-way, in each road, 20 lamp pearls are in parallel, in half light glimmer illumination, two street lamp pearl alternations, reduce the impact on the lamp pearl life-span with this.

Concrete, infrared sensor is arranged on the two ends on a road, whether guarantee to detect in time in road by pedestrian or vehicle, by key circuit and system direct dialogue, the busy period is set, and the LCD screen of time all in display circuit shows, carry out growing bright in busy period LED group, idle period LED group is closed, when infrared sensor senses that traffic is through out-of-date, issue single-chip microcomputer signal, Single-chip Controlling LED group is luminous, and the bright or half light glimmer illumination according to the real-time complete bright full exposure of natural lighting strength control LED group selection.

Claims (3)

1. a LED roadway lighting system, comprise control section, induction of signal part, control module, time control circuit, LED group, it is characterized in that: described control section is that control core is connected with and comprises control module that comparator LM393 and photo resistance form and by the time control circuit comprising DS1302 type clock chip and form, single-chip microcomputer is also connected with two infrared sensors, LED group, key circuit, display circuit with AT89C51 system.

2. LED roadway lighting system according to claim 1, is characterized in that: two described infrared sensors are arranged on the both sides of road bypass lamp bank respectively.

3. LED roadway lighting system according to claim 2, is characterized in that: described LED group comprises 40 lamp pearls, and the parallel connection of every 20 lamp pearls is a road, is divided into two-way.