CN205427521U - Fragrant quick -witted control circuit - Google Patents
Fragrant quick -witted control circuit Download PDFInfo
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- CN205427521U CN205427521U CN201620165211.5U CN201620165211U CN205427521U CN 205427521 U CN205427521 U CN 205427521U CN 201620165211 U CN201620165211 U CN 201620165211U CN 205427521 U CN205427521 U CN 205427521U
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- spraying device
- control circuit
- time delay
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Abstract
The utility model discloses a fragrant quick -witted control circuit can carry out reasonable control to fragrant machine, avoids the waste of perfume, and it is mainly including human response module for when sensing the human body, produce a sensing signal, time delay module, its input are coupled in the output of human body response module, and it is right to be used for the sensing signal time delay, time block, its input are coupled in the output of time delay module to in response to the reference signal of the output of the sensing signal after a time delay high level, and put reference signal into the low level after the timing, host system is in response to the reference signal and the sensing signal outlet driving signal of low level, motor driver module, in response to drive signal to control the motor operation of fragrant machine.
Description
Technical field
This utility model relates to a kind of frangrance spraying device, more specifically, it relates to a kind of frangrance spraying device control circuit.
Background technology
Frangrance spraying device is that one is automatically controlled by circuit, by motor internal machine driving, allows flavouring agent erupt in clocked flip mode. it is the miniature electric utensil being exclusively used in regulation air.Its structure and installation generally wall hanging form, can paste and be hung on the wall of public place or toilet etc. use.But, there is a defect in this type of frangrance spraying device, regardless of whether there is people to exist, frangrance spraying device all can start by set date, if long-time nobody enters in eruption region, will result in the waste of perfume.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is to provide a kind of frangrance spraying device control circuit, it is possible to reasonably control frangrance spraying device, it is to avoid the waste of perfume.
For achieving the above object, this utility model provides following technical scheme:
With reference to Fig. 1, a kind of frangrance spraying device control circuit, including:
Human body induction module, for when sensing human body, produces an induced signal；
Time delay module, its input is coupled to the outfan of human body induction module, for described induced signal time delay；
Time block, its input is coupled to the outfan of time delay module, and exports the reference signal of a high level in response to the induced signal after time delay, and after timing terminates, reference signal is set to low level；
Main control module, in response to low level reference signal and induced signal output drive signal；
Motor drive module, in response to described driving signal, to control the motor operations of frangrance spraying device.
Further, described human body induction module uses pyroelectric sensor, radar microwave detector or sound transducer.
Further, described time delay module includes some not circuits being sequentially connected in series, and its number is even number.
Further, described time block includes the intervalometer being made up of 555 timing chips, and not circuit；The input of described not circuit receives described induced signal, and outfan is coupled to the triggering end of intervalometer.
Further, described time block uses single-chip microcomputer.
Further, described main control module uses single-chip microcomputer.
Further, described motor drive module uses H bridge motor-drive circuit, and its input is coupled to the output pin of described single-chip microcomputer；Described driving signal is pwm signal.
Compared with prior art, the utility model has the advantages that: by above technical scheme, it is achieved that only when there being people to enter in the eruption region of frangrance spraying device, frangrance spraying device just can start.It addition, after frangrance spraying device starts and completes once to erupt, in the given time, frangrance spraying device will not be again started up, it is to avoid within certain a period of time, constantly someone passes in and out the problem causing frangrance spraying device frequent starting.
Accompanying drawing explanation
Fig. 1 is the systematic schematic diagram of fragrant machine control circuit in this utility model；
Fig. 2 is the circuit diagram of human body induction module in this utility model；
Fig. 3 is the circuit diagram of time delay module, time block in this utility model；
Fig. 4 is the circuit diagram of main control module in this utility model；
Fig. 5 is the circuit diagram of motor drive module in this utility model.
Reference: 100, human body induction module, 200, time delay module, 300, time block, 400, main control module, 500, motor drive module.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.
With reference to Fig. 1, a kind of frangrance spraying device control circuit, it mainly includes human body induction module 100, time delay module 200, time block 300, main control module 400 and motor drive module 500.
In the present embodiment, above-mentioned human body induction module 100 can use any one in pyroelectric sensor, radar microwave detector or sound transducer, it is also possible to is other type detection device with similar functions.Fig. 2 shows that human body induction module 100 uses the circuit diagram of pyroelectric sensor PIR, and pyroelectric sensor PIR, when sensing human body, produces an induced signal Sg.
With reference to Fig. 3, the some not circuits being sequentially connected in series of time delay module 200, its number is even number, in figure as a example by 2, and respectively not circuit N1 and not circuit N2；The input of not circuit N1 is coupled to the outfan of human body induction module 100, and outfan is coupled to the input of not circuit N2；Therefore, when not circuit N1 receives induced signal Sg from human body induction module 100, anti-phase through twice, export to time block 300 from the outfan of not circuit N2.
In the present embodiment, time block 300 can use 555 timing chips to realize, it is possible to using chip microcontroller, Fig. 3 shows that time block 300 uses the circuit diagram of 555 timing chips, and it mainly includes the intervalometer being made up of 555 timing chips, and not circuit N3.The input of not circuit N3 is coupled to the outfan of not circuit N2, and to receive the induced signal Sg ' after time delay, the outfan of not circuit N3 is coupled to the triggering end of intervalometer, the pin 2 of i.e. 555 timing chips.Therefore, when the induced signal Sg ' of high level is after not circuit N3 is anti-phase, low level is become, and then triggering intervalometer, the pin 3 of intervalometer exports reference signal Sf of high level at once, after the timing of intervalometer terminates, the pin 3 of intervalometer becomes low level, i.e. reference signal Sf is low level.
With reference to Fig. 4, main control module 400 uses single-chip microcomputer, and its model is preferably AT89C51.From the figure, it can be seen that input pin P1.3 and P1.4 of single-chip microcomputer receives reference signal Sf and induced signal Sg respectively.When single-chip microcomputer receives the induced signal Sg of high level and low level reference signal Sf, export corresponding pwm signal from pin P1.0 and P1.1.
With reference to Fig. 5, motor drive module 500 uses H bridge motor-drive circuit, and it mainly includes that audion Q1, Q2, Q3, Q4, Q5, Q6, concrete annexation repeat no more.The base stage of audion Q1, Q6 is respectively coupled to pin P1.0 and P1.1 of single-chip microcomputer, to receive pwm signal.After H bridge motor-drive circuit receives pwm signal, drive motor M work.
Therefore, work process of the present utility model is, as eruption region nobody of frangrance spraying device, human body induction module 100 fails human body to be detected, and now induced signal Sg and reference signal are low level, main control module 400 not output drive signal；After having people to enter eruption region, induced signal Sg immediately goes high, existence due to time delay module 200, now reference signal Sf still processes low level, therefore, after main control module 400 detects induced signal Sg and low level reference signal Sf of high level, output drive signal (PWM), motor drive module 500, in response to driving signal, controls motor operations.After time delay module 200 time delay terminates, time block 300 is triggered, reference signal Sf becomes high level, during now time block 300 is in timing, interior during this, no matter whether human body induction module 100 detects people, main control module 400 the most no longer output drive signal, avoiding problems in a certain amount of time, constantly someone passes in and out, the problem causing frangrance spraying device frequent starting.After time block 300 timing terminates, reference signal Sf becomes low level again, and control circuit resets.
Claims (7)
1. a frangrance spraying device control circuit, is characterized in that, including:
Human body induction module, for when sensing human body, produces an induced signal；
Time delay module, its input is coupled to the outfan of human body induction module, for described induced signal time delay；
Time block, its input is coupled to the outfan of time delay module, and exports the reference signal of a high level in response to the induced signal after time delay, and after timing terminates, reference signal is set to low level；
Main control module, in response to low level reference signal and induced signal output drive signal；
Motor drive module, in response to described driving signal, to control the motor operations of frangrance spraying device.
Frangrance spraying device control circuit the most according to claim 1, is characterized in that, described human body induction module uses pyroelectric sensor, radar microwave detector or sound transducer.
Frangrance spraying device control circuit the most according to claim 1, is characterized in that, described time delay module includes some not circuits being sequentially connected in series, and its number is even number.
Frangrance spraying device control circuit the most according to claim 1, is characterized in that, described time block includes the intervalometer being made up of 555 timing chips, and not circuit；The input of described not circuit receives described induced signal, and outfan is coupled to the triggering end of intervalometer.
Frangrance spraying device control circuit the most according to claim 1, is characterized in that, described time block uses single-chip microcomputer.
Frangrance spraying device control circuit the most according to claim 1, is characterized in that, described main control module uses single-chip microcomputer.
Frangrance spraying device control circuit the most according to claim 6, is characterized in that, described motor drive module uses H bridge motor-drive circuit, and its input is coupled to the output pin of described single-chip microcomputer；Described driving signal is pwm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620165211.5U CN205427521U (en) | 2016-03-03 | 2016-03-03 | Fragrant quick -witted control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620165211.5U CN205427521U (en) | 2016-03-03 | 2016-03-03 | Fragrant quick -witted control circuit |
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| Publication Number | Publication Date |
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| CN205427521U true CN205427521U (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620165211.5U Expired - Fee Related CN205427521U (en) | 2016-03-03 | 2016-03-03 | Fragrant quick -witted control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347378A (en) * | 2018-10-24 | 2019-02-15 | 深圳联合辉腾科技有限公司 | A kind of frangrance spraying device control circuit |
| CN113296448A (en) * | 2021-06-12 | 2021-08-24 | 河北红岸基地科技有限公司 | Control method of human body induction timing fragrance spraying machine |
-
2016
- 2016-03-03 CN CN201620165211.5U patent/CN205427521U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347378A (en) * | 2018-10-24 | 2019-02-15 | 深圳联合辉腾科技有限公司 | A kind of frangrance spraying device control circuit |
| CN113296448A (en) * | 2021-06-12 | 2021-08-24 | 河北红岸基地科技有限公司 | Control method of human body induction timing fragrance spraying machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20210303 |
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| CF01 | Termination of patent right due to non-payment of annual fee |