Utility model content
The purpose of this utility model opens brought harm for a long time to overcome existing mini light night, there is blind area in the induction range overcoming existing mini light night, induced signal can by problems such as object breaks, and provide one can not only to use as floor light, people is supplemented when insufficient light, and can guide nocturnalism, guarantor can also be in light-off state when night's rest and human body rest can not be affected, and induced signal can not by the microwave induced mini light night of the human body infrared of the material blocks except metal, it has power saving again simultaneously, energy-conservation, reliable and stable feature.
To achieve these goals, the technical solution adopted in the utility model is:
The microwave induced mini light night of human body infrared, comprise LED illumination circuit, it is characterized in that: also comprise AC-DC conversion electric power circuit, ambient light detection circuit, the microwave induced circuit of human body, PIR pyroelectric human body sensor circuit and signal analysis control chip, the ac voltage input of AC-DC conversion electric power circuit is electrically connected with city; The microwave induced circuit of described ambient light detection circuit, human body, PIR pyroelectric human body sensor circuit, LED illumination circuit are connected with signal analysis control chip respectively.
Described LED illumination circuit is made up of LED, Q2, R14, R15, is connected with the 2nd pin of signal analysis control chip; Ambient light detection circuit is made up of R7, RB, the dividing potential drop obtained is outputted to the 9th pin of signal analysis control chip, determines whether signal analysis control chip receives the signal of the microwave induced circuit of human body and PIR pyroelectric human body sensor circuit; AC-DC conversion electric power circuit is made up of R16, R17, R18, R, D, D2, D3, C19, C20, line voltage AC220V is converted to the voltage of DC+5V also to LED illumination circuit, signal analysis control chip, ambient light detection circuit, PIR pyroelectric human body sensor circuit and the microwave induced circuit supply of human body; PIR pyroelectric human body sensor electrical route U2, C18, C17 composition, by being input to the 14th pin of signal analysis control chip by the signal obtained to environment measuring.
The microwave induced circuit of described human body comprises electric capacity C2, C3, C4, C5, C9, C21, C1, C6, C7, C8, resistance R1, R2, R3, R4, R5, R6, microwave triode Q1 and transmitting antenna; C2, C3, C4, C5, C21 one end of described microwave induced circuit is connected with+5V voltage, C2, C3, C4, C5, C21 other end ground connection; The collector electrode of microwave triode Q1 is connected with+5V voltage; R1 one end is connected with+5V voltage, the R1 other end is connected with R2, C1, C1 other end ground connection, the R2 other end is connected with R3 with the base stage of microwave triode Q1, R3 other end ground connection, and the emitter of microwave triode Q1 is connected with transmitting antenna one end, the transmitting antenna other end is connected with R4, R5, C6, C7, R4, C6, C7 other end ground connection, the R5 other end is connected with R6, C8, C9, the other end ground connection of R6, C8, C9.
Described signal analysis control chip model is BISS0001, and described ambient light detection circuit is connected with the 9th pin of signal analysis control chip; The microwave induced circuit of described human body, PIR pyroelectric human body sensor circuit are connected with the 14th pin of signal analysis control chip, and described LED illumination electrical equipment is connected with the 2nd pin of signal analysis control chip.
8th pin of described signal analysis control chip is connected with+5V voltage and resistance R7 one end, and the resistance R7 other end is connected with the 9th pin of signal analysis control chip, and the 10th pin of signal analysis control chip is connected with R8, R8 other end ground connection; 16th pin of signal analysis control chip is connected with C14, and C14 and R9 is connected, and the R9 other end is connected to the 13rd pin of signal analysis control chip.
The microwave induced mini light night of described human body infrared comprises lower cover, LEDPCB support, LED diffuser, upper cover, thermistor lens, LEDPCB, PCB control board, PIR human body sensing lens and button.
The main installation step of the microwave induced mini light night of described human body infrared is as follows: the power line of the Two-feet plug in mini light night lower cover is connected with PCB control board AC220 input, and is encased in mini light night lower cover by PCB control board by center positioning hole; LEDPCB is inserted in LEDPCB support, and with power line, the input of LEDPCB is connected with the direct current output of PCB control board; LEDPCB and the LEDPCB support be fixed together is inserted in the location notch of mini light night lower cover; LED diffuser, thermistor lens, PIR human body sensing lens are inserted in mini light night upper cover; The mini light night lower cover combined and mini light night upper cover are combined and form human body infrared and respond to mini light night.
The main operational principle of the microwave induced mini light night of human body infrared described in the utility model: utilize Doppler radar principle, by laying dull and stereotyped circular antenna on PCB, sending to environment the microwave that frequency is 10.525GHZ, carrying out sense object by the change of frequency.When ambient light detection circuit detects insufficient light (<10LUX), microwave induced circuit and PIR pyroelectric human body sensor circuit open detection environment, when in the induction range that people enters the utility model mini light night, produce and have strong and weak pulse signal, obtain the 14th pin and the preamplifier positive input of effective pulse signal input chip, exported by the 16th pin and preamplifier output through the reprocessed pulse signal of enlarge leadingly, be input to the reverse input end of the 13rd pin and second level amplifier again, signal is after the second level is amplified, again outputed signal by the two-way amplifier of chip internal, open mini light night behaviour and floor light is provided.
The beneficial effects of the utility model are:
If 1 when using in bedroom, when at night and people is in OFF state when having a rest, not affecting the visual acuity of child, sleep quality and growing; Do not affect the sleep quality in adult, the mental status of second day and healthy etc.
2, when ambient light deficiency or people's activity at night time, mini light night is in illuminating state, does not affect the function of its floor light.
3, there is not dead angle in induction range under common-mode, and signal is not easy to be blocked, and can not respond to dead angle or signal blocker and cause mini light night can not normal floor light, use convenient because of some.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model is not limited to following examples.
As Fig. 1, shown in 2, the microwave induced mini light night of the utility model human body infrared, comprise LED illumination circuit, adopt the AC-DC conversion electric power circuit of capacitance-resistance voltage reduction circuit, adopt the ambient light detection circuit of photo resistance, the microwave induced circuit of human body, adopt PIR pyroelectric human body sensor circuit and the signal analysis control chip U1 of pyroelectricity probe, the ac voltage input of AC-DC conversion electric power circuit is electrically connected with city, its direct voltage output is to ambient light detection circuit, the microwave induced circuit of human body, PIR pyroelectric human body sensor circuit, signal analysis control chip U1 (BISS0001) and LED illumination circuit provide power supply, the microwave induced circuit of described ambient light detection circuit, human body, PIR pyroelectric human body sensor circuit, LED illumination circuit are connected with signal analysis control chip U1 respectively.
As shown in Figure 2, LED illumination circuit described in the utility model is made up of LED, Q2, R14, R15, is connected with the 2nd pin of signal analysis control chip U1; Ambient light detection circuit is made up of R7, RB, the dividing potential drop obtained is outputted to the 9th pin of signal analysis control chip U1, determines whether signal analysis control chip U1 receives the signal of the microwave induced circuit of human body and PIR pyroelectric human body sensor circuit; AC-DC conversion electric power circuit is made up of R16, R17, R18, R, D, D2, D3, C19, C20, line voltage AC220V is converted to the voltage of DC+5V also to LED illumination circuit, signal analysis control chip U1, ambient light detection circuit, PIR pyroelectric human body sensor circuit and the microwave induced circuit supply of human body; PIR pyroelectric human body sensor electrical route U2, C18, C17 composition, by being input to the 14th pin of signal analysis control chip U1 by the signal obtained to environment measuring;
The microwave induced circuit of human body described in the utility model comprises electric capacity C2, C3, C4, C5, C9, C21 of 0.1uF, the resistance R1 of 100 ohm, the resistance R2 of 4.7K ohm, the resistance R3 of 1.24K ohm, the resistance R4 of 150 ohm, the resistance R5 of 1K ohm, the resistance R6 of 4.7K ohm, electric capacity C1, C6, C7, C8 of 100pF, microwave triode Q1 and transmitting antenna A1; C2, C3, C4, C5, C21 one end of this microwave induced circuit is connected with+5V voltage, C2, C3, C4, C5, C21 other end ground connection; The collector electrode of microwave triode Q1 is connected with+5V voltage; One end of R1 is connected with+5V voltage, the R1 other end is connected with R2, C1, C1 other end ground connection, the R2 other end is connected with R3 with the base stage of microwave triode Q1, R3 other end ground connection, the emitter of microwave triode Q1 is connected with transmitting antenna A1 one end, the transmitting antenna A1 other end is connected with R4, R5, C6, C7, R4, C6, C7 other end ground connection, the R5 other end is connected with R6, C8, C9, the other end ground connection of R6, C8, C9, by being input to the 14th pin of signal analysis control chip U1 by the signal obtained to environment measuring.
8th pin of signal analysis control chip U1 described in the utility model is connected with+5V voltage and resistance R7 one end, the resistance R7 other end is connected with the 9th pin of signal analysis control chip U1,10th pin of signal analysis control chip U1 is connected with R8, R8 other end ground connection; 16th pin of signal analysis control chip U1 exports and is connected with C14, and C14 and R9 is connected, and the R9 other end is connected to the 13rd pin of signal analysis control chip U1.
As shown in Fig. 3,4,5, the microwave induced mini light night of human body infrared described in the utility model, mainly comprises lower cover 1, LEDPCB support 2, LED diffuser 3, upper cover 4, thermistor lens 5, LEDPCB6, PCB control board 7, PIR human body sensing lens 8 and button 9.
The main installation step of the microwave induced mini light night of described human body infrared is as follows: the power line of the Two-feet plug in mini light night lower cover 1 is connected with PCB control board 7AC220 input, and is encased in mini light night lower cover 1 by PCB control board 7 by center positioning hole; LEDPCB6 is inserted in LEDPCB support 2, and with power line, the input of LEDPCB6 is connected with the direct current output of PCB control board 7; LEDPCB6 and the LEDPCB support 2 be fixed together is inserted in the location notch of mini light night lower cover 1; LED diffuser 3, thermistor lens 5, PIR human body sensing lens 8, thermistor lens 5 are inserted in mini light night upper cover 4; The lower cover 1 combined is combined with upper cover 4 and forms the microwave induced mini light night of human body infrared.
The course of work and the operation principle of the microwave induced mini light night of human body infrared described in the utility model are as follows:
Pass through circuit design, to human body microwave induced to respond to PIR human body infrared carry out regulable control, circuit is mainly through adjusting the resistance of resistance R9 and R10 in control circuit with desensitization, close microwave induced circuit, only open PIR pyroelectric human body sensor circuit, use its induction to there is this characteristic at dead angle, reduce the detection range to human body; Chip functions pattern switches, 1st pin of signal analysis control chip U1 is become ground connection from meeting+5V, from repeated trigger pattern becoming not reproducible trigger mode, further reduction the utility model mini light night affects people and has a rest due to false triggering, reach people's mini light night when rest does not affect people and to have a rest this function in bedroom.
The cardinal principle of circuit: utilize Doppler radar principle, by laying dull and stereotyped circular antenna on PCB, sending to environment the microwave that frequency is 10.525GHZ, carrying out sense object by the change of frequency.When ambient light detection circuit detects insufficient light (<10LUX), microwave induced circuit and PIR pyroelectric human body sensor circuit open detection environment, when in the induction range that people enters the utility model mini light night, produce and have strong and weak pulse signal, obtain the 14th pin and the preamplifier positive input of effective pulse signal input chip U1, exported by the 16th pin and preamplifier output through the reprocessed pulse signal of enlarge leadingly, be input to the reverse input end of the 13rd pin and second level amplifier again, signal is after the second level is amplified, again outputed signal by the two-way amplifier of chip internal, open mini light night behaviour and floor light is provided.Slightly when rest stand up the work that action can not trigger mini light night, when standing up when from the bed to leave the bed (movement range is larger), reach the unlocking condition of mini light night, when not affecting other people in the short time, mini light night plays the effect guided night.
The microwave induced mini light night of human body described in the utility model has two kinds of mode of operations:
1. when the 1st pin of signal analysis control chip U1 connects+5V voltage, for human body infrared microwave induction mini light night be applied to general occasion time, use the common-mode function of mini light night, based on microwave induced, PIR pyroelectric human body is sensed as auxiliary, and induction range is the circle of diameter 4m; Induction range as shown in Figure 6.
Now use microwave induced with PIR pyroelectric human body sensor circuit, induction range is maximum, and signal analysis control chip U1 adopts continuous trigger pattern.When the illumination of environment is lower than 10LUX, photo resistance resistance in ambient light detection circuit increases rapidly, R7 and RB be the input voltage of bleeder circuit U2 by 0.2V rapidly more than 1.2V, signal analysis control chip U1 starts working, and U1 starts the signal receiving microwave induced circuit and PIR pyroelectric human body sensor circuit.When nobody in detection range mobile, human body infrared microwave mini light night is in turn-off, when microwave induced circuit or PIR pyroelectric human body sensor circuit detect human body signal, sensor circuit produces strong and weak pulse signal, obtain the 14th pin and the preamplifier positive input of effective pulse signal input chip U1), exported by the 16th pin of U1 and preamplifier output through the reprocessed pulse signal of enlarge leadingly, the 13rd pin of U1 and the reverse input end of second level amplifier is input to again after the filtering of C14 and R9, signal is after the second level is amplified, again by after the two-way amplifier of U1 inside, 2nd pin of U1 produces the output signal of+5V, output signal connects the base stage of Q2 by R14 resistance, Q2 is in conducting state, LED is lit behaviour and provides floor light, U1 enters the delay state of about 20 seconds.Due under common-mode, U1 is in can repeated trigger pattern, and when being in delay state, when people is in mini light night detection range always, LED can be lit always.When human body signal cannot be detected when delay state at U1 of microwave induced circuit and PIR pyroelectric human body sensor circuit, mini light night was closed after about 20 seconds.
2., when the 1st pin ground connection of signal analysis control chip U1, when the microwave induced mini light night of human body infrared is applied to bedroom, use a key bedroom function of mini light night.Only use PIR pyroelectric human body sensor circuit, induction range reduces, and signal analysis control chip U1 adopts not reproducible trigger mode.PIR pyroelectric human body is sensed as master, microwave induced closedown, and induction range is angle is 30 degree, radius is the sector region of 3m.Induction range as shown in Figure 7.
When the illumination of environment is lower than 10LUX, photo resistance resistance in ambient light detection circuit increases rapidly, R7 and RB be the input voltage of bleeder circuit U2 by 0.2V rapidly more than 1.2V, signal analysis control chip U1 starts working, and signal analysis control chip U1 starts the signal receiving PIR pyroelectric human body sensor circuit.When people is when bedside moves or stand up to leave the bed, after PIR pyroelectric infrared-sensing input to the signal of people, sensor circuit produces strong and weak pulse signal, obtain the 14th pin and the preamplifier positive input of effective pulse signal input signal analysis and Control chip U1, exported by the 16th pin of U1 and preamplifier output through the reprocessed pulse signal of enlarge leadingly, the 13rd pin of U1 and the reverse input end of second level amplifier is input to again after the filtering of C14 and R9, signal is after the second level is amplified, again by after the two-way amplifier of signal analysis control chip U1 inside, 2nd pin of signal analysis control chip U1 produces the output signal of+5V, output signal connects the base stage of Q2 by R14 resistance, Q2 is in conducting state, LED is lit behaviour and provides floor light, U1 enters the delay state of 20 seconds.Owing to being in a key bedroom function, signal analysis control chip U1 is set to not reproducible trigger mode, and mini light night will be closed after 20 seconds, the human body signal detected in the meantime, and signal analysis control chip U1 can not receive it.After mini light night is closed, U1 restarts to receive sensor circuit to the detection signal of environment.
Finally, it should be noted that above what enumerate is only specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, can also have a lot of distortion.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed in the utility model, all should think protection range of the present utility model.