CN2449445Y

CN2449445Y - Intelligent controller for road lamp

Info

Publication number: CN2449445Y
Application number: CN 99242257
Authority: CN
Inventors: 赵有年; 赵宏
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-09-08
Filing date: 1999-09-08
Publication date: 2001-09-19
Anticipated expiration: 2009-09-08

Abstract

An intelligent controller for a road lamp is a road lamp automatic controlling device. A road lamp ELA at an A position and a road lamp ELB at a B position are respectively provided with a controller LA (LB); a light control circuit and three switches driven by the same signal are arranged in the controller. When objects with different speeds pass through a zone irradiated by an emitter, because of different duration time, a drive signal of a slow object, which has longer duration time and larger amplitude than a fast object has, can be obtained after a same wave signal generated passes a diode mercury coherer; therefore, the utility model can achieves the road lamp is extinguished in the daytime and lighted when objects move at night, and the lighting time of the road lamp can be determined according to the directions and the speeds of the objects; the fronts and the backs of the objects are irradiated by the road lamps, and the purpose of power saving is achieved.

Description

Road lamp intelligent controller

The utility model is relevant with the street lamp automatic control technology.

At present, the town and country street lamp adopts light-operated circuit realization lamp at night bright usually simply, and daytime, lamp put out.For further saves energy, some street lamp adopts light-operated self-timing road lamp switch, and charge to time capacitor daytime, at dark, utilizes its sufficient electric charge starting switch circuit, and output switching signal drives the road lamp switch circuit, and street lamp is opened; When time capacitor discharges to timing resistor, potential drop is during to set point (the corresponding time in the second half of the night), and switching circuit returns to the state on daytime, and street lamp extinguishes ^*Though this method can play power savings, but still not ideal enough.Many times are arranged in the first half of the night, particularly in the winter of cold, not pedestrian or vehicle (moving target) on the road, and street lamp light yellow still, this just causes waste of electric energy.Street lamp cuts out automatically after midnight, though saved electric energy, but brought inconvenience for the pedestrian or the vehicle at night.

The purpose of this utility model is to provide a kind of road lamp intelligent controller, it can not only realize that daytime, lamp put out, and lamp does not work yet can realize that do not have moving target night the time: when moving target is arranged, can determine the time that street lamp is opened according to its direction and speed, have lamp to meet before satisfying pedestrian or vehicle, after have lamp to send needs.

The purpose of this utility model is achieved in that place's street lamp is equipped with a road lamp intelligent controller, is provided with a terminal block and a circuit mounting panel in the insulation crust of controller.The lead-out wire of circuit mounting panel is connected with external circuit by terminal block.Light-operated circuit, timing circuit, switching circuit, drive circuit, road lamp switch circuit, incandescent lamp soft starting circuit that the photo resistance that the circuit mounting panel comprises DC power supply circuit, be exposed to transmission circuit that the transmitting-receiving transducer of controller housing forms, be exposed to controller housing is formed.The transmitting-receiving transducer can adopt infrared components, also can adopt ultrasonic component, and present embodiment adopts ultrasonic component.Light-operated circuit control street lamp extinguishes daytime; Receiving circuit is according to the different duration echo voltage signals different with amplitude that produce of velocity to moving target, with the light-operated circuit acting in conjunction in timing circuit, make switching circuit output duration and the corresponding switching signal of velocity to moving target when night, control this place street lamp and adjacent two place's street lamps simultaneously through drive circuit, road lamp switch circuit, before satisfying pedestrian or vehicle, have lamp to meet, after have lamp to send needs; For making bulb unlikely damage under frequent on off state, can in the incandescent lamp circuit, seal in the incandescent lamp soft starting circuit.

Owing to adopt such scheme, street lamp control can not only realize that daytime, lamp put out, and lamp does not work yet can realize that do not have moving target night the time: when moving target is arranged, can determine the time that street lamp is opened according to its direction and speed, have lamp to meet before making pedestrian or vehicle in advancing, after have lamp to give; When moving target was intensive, street lamp can be opened continuously; Street lamp is worked under the soft start state simultaneously, can not influence its life-span because of frequent switch.Like this, not only can save a large amount of electric energy, prolong street lamp useful life, make troubles also can not for the pedestrian or the vehicle at night.

Below in conjunction with drawings and Examples the utility model is elaborated.

Fig. 1 is simplification control principle figure of the present utility model.

Fig. 2 is the circuit diagram of the utility model embodiment.

In Fig. 1, the street lamp EL of A place _AOr the street lamp EL of B place _BEach equipped controller U _A(or U _B).Be provided with three switches in each controller, they can be contact switch (as relays etc.), also can be noncontacting switch (as controllable silicons etc.), adopt controllable silicon to realize in the present embodiment.These three switches are controlled this place street lamp and adjacent two place's street lamps respectively by hookup wire.We can say that also this place street lamp also is subjected to the control of adjacent two place's controllers except that being subjected to the controller control of this place.Three switches in each controller are subjected to the driving of a control signal jointly, by adjusting the duration of control signal, have lamp to send after just can realizing moving target, and preceding have lamp to meet.

Need to prove that the street lamp that utilizes this controller must be with opening with bright electric light source, as incandescent lamp bulb etc.

For easy-to-connect, preferably adopt as shown in Figure 1 coloured hookup wire or private cable.

In Fig. 2, the terminal block XT at A place _ATerminal block XT with the B place _B, its structure is identical, it is installed in outside the road lamp intelligent controller.This terminal block is set is in order to change or convenient and safety when keeping in repair controller.The controller U of A place _AWith the controller U of B place _BCircuit and structure also just the same, as long as by the diagram correct wiring, circuit just can operate as normal.

Power transformer T ₁, rectification, filter circuit and three terminal regulator N ₅, N ₂The DC power supply of forming controller.

The radiating circuit of controller is by 40KHZ quartz-crystal resonator G ₁, CD4049 hex inverter N _4C, R ₂₄, R ₂₅And C ₁₂, C ₁₃The crystal oscillator of forming self-starting, output 40KHZ signal is through N _{4A, B}Buffering is amplified, by N _4D-FDrive ultrasound transmitting transducer B ₂

Ultrasonic wave receiving transducer B ₁, N ₁And N _3BForm receiving circuit.B ₁The 40KHZ signal of output is through N _1AAnd N _1DAfter the amplification, by V ₁, R ₈And C ₅The peak detector filtering 40KHZ high frequency of forming obtains the high-frequency envelope line.If there is not moving target, then envelope is a straight line.If there is moving target to pass through the reflector irradiation area, because the dobla effect, wave detector is just exported the dobla frequency shift signal, through N _1CAfter the amplification, again by N _1B, C ₇, C ₈, R ₁₃, R ₁₄, V ₂, V ₃The diode pumping wave detector of forming detects, just obtain one with target velocity different and different DC level.

After controller installed, the reflector irradiation area was exactly certain.Moving target is directly related with its movement velocity by the time that this zone continued, and speed is fast more, and the duration is short more; Speed is slow more, and the duration is long more.Because the charge and discharge time constant of diode pumping wave detector is all very big, for short target of duration, the target charging level height of the just too late longer duration of charging level.Therefore, when the moving target that speed is different passes through the reflector irradiation area, diode pumping wave detector N _1B7 pin output duration is long and level height or duration are short and the low different direct current signal of level, through N _3BAmplify back and light-operated circuit acting in conjunction in timing circuit.

Timing circuit be one by R ₁₈, V ₄, C ₁₁And R ₂₀The wave detector of forming; Switching circuit be one by R ₂₁, R ₂₂And N _3CThe voltage comparator of forming.Because the time constant of wave detector charge and discharge is all very big, obviously from N _3BLonger duration and amplitude height or duration are short and the low unlike signal of amplitude will be at N _3C10 pin obtain the more voltage of big difference.Work as N _3C9 pin reference levels determine after, just can obtain different high level of duration at its output 8 pin, deliver to drive circuit V ₁₀, to drive bidirectional triode thyristor V ₁₁, V ₁₂, V ₁₅Road lamp switch V ₁₁, V ₁₅After the conducting, directly open adjacent two place's street lamps.Driving switch V ₁₂Conducting rear drive road lamp switch circuit V ₁₃Open this place street lamp.The opening time of street lamp is relevant with the speed of moving target as mentioned above, and is simultaneously also relevant with the adjustment of circuit, suitably adjusts R ₉And R ₂₂Have lamp to send after can realizing moving target, preceding have lamp to meet.When moving target was intensive, street lamp can be opened continuously for a long time.R in the circuit ₂₇, R ₂₈, R ₂₉, R ₃₃Be current-limiting resistance.

R ₁₉Be photo-resistor, it and R ₁₈Form light-operated circuit, daytime R ₁₉Resistance is very little, N _3C10 pin current potentials be lower than 9 pin, N _3CCan not overturn, street lamp can not be opened.Night R ₁₉Resistance is very big, when moving target passes through the reflector irradiation area, and comparator N _3C10 pin current potentials surpass 9 pin, 8 pin will exports high level, the unlatching street lamp.

Usually, because the cold-state resistance of incandescent lamp metallic filament is little, crosses very big impulse current at the energising transient flow and make the disintegration of filament easily, or the electromagnetic stress of therefore electric current generation twists off filament.For fear of the generation of this situation, the simplest method that adopts is to seal in a diode or a negative temperature coefficient power component that adapts with its power capacity in the incandescent lamp circuit usually.But, sealing in diode separately, it is too many that street lamp brightness is reduced; Seal in the negative temperature coefficient power component separately, bigger again to the requirement of its power capacity, and power consumption is also big.Adopt other voltage drop method or soft starting circuit, circuit is comparatively complicated again.The utility model adopts negative temperature coefficient power component R ₃₂With diode V ₁₄Compose in parallel simple incandescent lamp soft starting circuit, be connected in the incandescent lamp circuit, overcome the shortcoming of above-mentioned all methods, make bulb unlikely damage under frequent on off state.To then not necessarily connecing this circuit with opening with bright electric light source from ballast.

* Chen Er volume such as continue, practical photoelectric control circuit is selected, Electronic Industry Press,, 426～428 in 1993

Claims

1. road lamp intelligent controller, by light-operated circuit, timing circuit, switching circuit, road lamp switch circuit sequential action control street lamp, it is characterized in that receiving circuit and light-operated circuit acting in conjunction in timing circuit, switching circuit is controlled this place street lamp and adjacent two place's street lamps simultaneously through drive circuit, road lamp switch circuit.

2. road lamp intelligent controller according to claim 1 is characterized in that the temperature-sensitive power component of negative temperature coefficient and the diode composition soft starting circuit that is in parallel, and is connected in the incandescent lamp circuit.