CN1423516A - Reflective infrared counting, energy-saving lighting control device - Google Patents

Abstract

The invention belongs to the light switch automatic controlling technology, which accomplishes the needed logic relation. The circuit controlling counter is in the state of the adding counting when a person gets in, and the counter is in the state of subtracting counting when a person gets out, and when the numeral of the person in is more than the numeral of the person out, it is indicated that there is someone in the room. At this time, if the output of OR gate in connected with the counter is in high level, the close light of the relay is bright and the output of the counter is zero, and if the output of the OR gate is low level, the open light of the relay crushes out. Because it uses infrared controlling and its circuit, it has the effect of convenience and saving power.

Description

Reflective infrared counting, energy-saving lighting control device

The invention belongs to lighting switch automatic control technology field

At present, family generally uses manual touch switch, and the shortcoming that this switch exists is: the back of entering house is sought and Push switch, goes out at first off switch of room, if go out to forget before the room or do not close that it will be in opening waste electric energy always.Back (under the not dried situation of hand) goes contact-making switch that the danger of electric shock is arranged easily if wash one's hands.Be used in stair or the corridor audio-switch it by sound sensitive element and timer are constituted, when the people is in the acoustic control scope and walks about, footsteps triggers senser makes lamp be in opening, in leaving the acoustic control scope, the people closes automatically behind the certain hour, its scope of application is narrow, only be used in stair or corridor, increased noise to a certain extent, because its time restriction, longer as if the residing time under lamp, lantern festival is extinguished, and makes troubles, switch comparatively advanced in existing technology is the infrared acquisition switch, it is by the infrared thermoelectrical material senser of laminating, and plates the little electric capacity that polarity is arranged that electrode constitutes series connection thin slice two-sided, when variations in temperature, the output signal of telecommunication also has polarity, and two opposite polarity elements are made on the same wafer and play temperature compensation function.Be characterized in that it only causes when extraneous radiation that self-temperature just provides an opposite signal of telecommunication when changing, and just do not have signal output after temperature tends towards stability, so it is only for the people or the object sensitivity of moving.Because people's body temperature is about 37 degrees centigrade, the wavelength of its radiation is 9.4 microns, that is to say that transducer can effectively choose the infrared ray of human body radiation, because transducer adopts filter as window, it is to the human body radiation sensitivity, and to sunlight, light has anti-interference, but, for need adding phenanthrene forwardly, the detection range that increases transducer pinches your lens, because the design feature of lens causes that the blind area is arranged in the investigative range along with lamp heating radiated infrared is disturbed switch motion easily.

The object of the present invention is to provide a kind of reflection is infrared counting, energy-saving lighting control device, and this device adopts infrared and technological means such as plus-minus counting, and therefore, what effectively solved audio-switch is subject to disturb unstable and the existing the problems referred to above of time restriction.

Principle of the present invention is: for a room, enter person-time with person-time equating of finally going out.In pilot process, enter person-time greater than go out person-time the time, the people is necessarily arranged, when entering when person-time equaling away person-time the room no one in the room.At night or light when dark, the inside, room has the people just to need illumination, does not just need the logical relation of throwing light on when the no one.For realizing above-mentioned logical relation, the present invention adopts infrared control, as the people when door enters the room, the tube-launched infrared ray of human body reflected infrared ray, receive by infrared remote receiver and to control illuminating lamp, need have logic determines ability and plus-minus counting ability simultaneously, adopt two infrared remote receivers here, the receiver that links to each other with forward-backward counter addition input when the people enters at first receives the infrared ray of human body reflection because the pulse enable signal counter is sent in its circuit structure effect realizes that the addition counting is amplified by amplifier 2 simultaneously and make VT1 and VT2 be in saturation condition, subtracts each other input with counter and receives human body reflective infrared signal shorts.When the people goes out, subtract each other receiver that input links to each other and at first receive signal and make counter subtract each other counting with counter, with counter addition input by short circuit.Man-hour is arranged in the room, and the output of counter and logic sum gate output high level amplifies the action that comes control relay by amplifier to signal again and realizes illumination control, when the no one, counter output and or a door output low level relay disconnect an electric light and extinguish.Because the realization of its logical relation and combining of infrared control are this inventions to have and make things convenient for and energy-saving advantages, has the be not bullied interference of gentle noise of good stability simultaneously.

During work, infrared transmitting tube 5 emission infrared rays, as the people when the doorway enters, the infrared ray of the human body reflection that infrared receiver 4 receives earlier, send the U end that pulse signal enters counter, counter meter "+1 " synchronous signal through or door 7, VT1, VT2 are in saturation condition during amplifier 2, the time infrared receiver 6 signal shorts that receives; As the people when go out in the room, infrared receiver 6 receives the infrared ray of human body reflection earlier, send the D end that pulse signal enters counter, make counter meter " 1 ", infrared receiver 4 is by short circuit, when counter during in respect of numerical value its output through or door 3 output high level, make relay closes through amplifier 1 again, energized.When counter is zero, output low level, relay disconnects, and cuts off the electricity supply.Wherein light-operated effect be for make this device at night or light when more weak operate as normal control illumination and at the stronger auto power off on daytime of light, counter inserts display so that understand and enter the number situation, is convenient to adjust the counting of counter simultaneously.

This reflective infrared counting, energy-saving lighting control device comprises the compositions such as voltage stabilizing circuit that transformer 8, rectifier diode 8,9 composition transformation rectification circuits and pressurizer are formed, it is characterized in that: detector is formed in parallel by infrared receiver 4,6 and infrared transmitting tube 5, the signal output part of infrared receiver 4,6 inserts the addition input U weak point of counter more respectively and subtracts each other input D end through resistance 11,12 and voltage stabilizing didoe 13,14 respectively, inserts two inputs of logic sum gate 7 simultaneously; The signal of 2 pairs of logic sum gate 7 outputs of amplifier amplifies U end and the D end that the collector electrode that inserts the collector electrode triode of triode VT1, VT2 respectively through diode, resistance inserts counter respectively, emitter and ground short circuit; The output of counter inserts the input of logic sum gate 3 and the input of count display respectively, and its numerical value shows by driver, decoder, seven segment numerical display tube; The output signal of logic sum gate 3 is come the closure state of control relay by the amplification cut-in relay of amplifier 1.

Drawings and Examples:

Fig. 1 is the circuit diagram of reflective infrared counting, energy-saving lighting control device

Fig. 2 arranges schematic diagram for using room of the present invention

Fig. 3 is for implementing the control system that the present invention forms for the unit

Accompanying drawing 3 is an embodiment (see figure 3) disclosed by the invention, and Fig. 2 is by being the control system that the unit is formed with Fig. 1, the counting situation of its each unit by adder, subtracter, data processing realize the illumination control of system.Removing 1,2,3,4 detectors among the figure is linked to each other with data processing section by lead.Each detector is by surveying on the doorway during use, realizes the control of throwing light on by signal processing to handling again.System shown in Figure 3 is used in the inner room illumination control of following structure: detector 3 is by on 1 doorway, and 1,2,4 detectors are respectively by on 2,3,4 doorways, and when the doorway entered, detector 3 sent pulse signal as the people.Relay was connected the power supply in room 1 when the data processing unit counting that at this moment, is attached thereto passed through subtracter or door and amplifier output high level.When the people who enters room 1 enters rooms 2,3,4 respectively, the pairing data processing unit in this room is controlled this room energized, when in the room nobody the time, 2, the counting sum of 3, the 4 pairing data processing units in room equate with the counting of unit 1 at this moment the effect by subtracter be the unit or the door output low level, the relay device is cut off the electricity supply.Man-hour or door output high level are arranged in the room, and relay is kept closed.Add timer or light intensity automatic control equipment behind the relay in pairing unit, certain room as required.

Claims (2)

1, a kind of reflective infrared counting, energy-saving lighting control device, transformation, rectification circuit and the voltage stabilizing circuit etc. that comprise transformer (8), rectifier diode (9), (10) composition are formed, it is characterized in that: the output of infrared receiver (4), (6) inserts the addition input U end of forward-backward counter more respectively and subtracts each other input D end with voltage stabilizing didoe (13), (14) through resistance (11), (12) respectively, inserts two inputs of logic sum gate (7) simultaneously; Amplifier (2) amplifies the base stage that inserts triode VT1 and VT2 through diode, resistance respectively to the signal of logic sum gate (7) output, the collector electrode of triode VT1 and VT2 connects the U end and the D end of counter respectively, emitter and ground short circuit: input and counting that the output of counter inserts logic sum gate (3) respectively show input, and its numerical value is by driver, decoder, seven-segment numeric indicator; The output signal of logic sum gate (3) is succeeded the closure state that electrical equipment comes control relay by the amplification of amplifier (1).

2, energy-saving lighting control device according to claim 1 is characterized in that: detector is formed in parallel by infrared receiver (4), (6) and infrared emission tube (5).

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