CN104852719A - Light-operated touching-type keying operation-based range hood - Google Patents
Light-operated touching-type keying operation-based range hood Download PDFInfo
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- CN104852719A CN104852719A CN201510218299.2A CN201510218299A CN104852719A CN 104852719 A CN104852719 A CN 104852719A CN 201510218299 A CN201510218299 A CN 201510218299A CN 104852719 A CN104852719 A CN 104852719A
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- light
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- range hood
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Abstract
The present invention provides a light-operated touching-type keying operation-based range hood, which comprises a shell, a control panel arranged on the shell, and a control circuit connected with the control panel. The control panel is provided thereon with function keys. The range hood is characterized in that the inner surface of the control panel is provided with a light-sensitive element corresponding to the function key. The light-sensitive elements output a corresponding control instruction to the control circuit through sensing the variation of the luminous environment of the function keys. The light-operated touching-type keying operation-based range hood is good in resistance to strong electromagnetic interference, water-repellent and oil-repellent. Meanwhile, the surface of an operation keyboard is easy to clean. By means of the above light-operated touching-type key, the defects of conventional capacitance sensing type touch keys are overcome. The above range hood can run reliably in strong-electromagnetic environments with water steams and oil stains, and is longer in service life and wider in application range.
Description
Technical field
The present invention relates to a kind of range hood of Light control touch formula key operation.
Background technology
At present, there are three large defects in the capacitor induction type touch control switch that on market, range hood uses: 1, is subject to strong electromagnetic and causes misoperation; 2, when range hood guidance panel there being water smoke, cisco unity malfunction; 3, service time is slightly long, and greasy dirt often infiltrates between inductive switching electrode surface and guidance panel, and the change due to medium makes touch become insensitive.
Summary of the invention
Technical problem to be solved by this invention is the deficiency overcoming above-mentioned prior art, provides a kind of range hood of Light control touch formula key operation.
The main technical schemes adopted according to the range hood of a kind of Light control touch formula key operation provided by the invention is: the control circuit comprising casing, be arranged on the control panel on casing and be connected with described control panel, described control panel is provided with function key, the corresponding described function key place of inner surface of described control panel is provided with light-sensitive element, and described light-sensitive element exports corresponding control command to described control circuit by the luminous environment change in the described function key of induction.
The range hood of Light control touch formula key operation provided by the invention also can have following attached technical characteristic:
Described light-sensitive element is infrared triode or infrared diode, and the infrared light change generation photoelectric current that described light-sensitive element responds to described function key place exports described control circuit to.
The photoinduction effective area of described light-sensitive element is 1-225mm
2.
Signal amplification unit, display unit, buzzing unit, fan unit and lighting unit that described control circuit comprises control unit and is connected with described control unit, the luminous environment change that described light-sensitive element senses by described signal amplification unit is converted into voltage signal and exports described control unit to after amplification, and described control unit exports corresponding control command according to the function key of the voltage signal determination action obtained.
The voltage signal of acquisition is exported corresponding control command by described control unit after A/D conversion and digital filtering.
Control chip in described control unit is MCU single-chip microcomputer.
Described display unit is dual-colored LED light-emitting diode or charactron.
I/O output port on described control unit is connected with lighting unit with display unit, buzzing unit, fan unit respectively, and control command is through corresponding drive circuit amplifying power rear drive display unit, buzzing unit, fan unit and lighting unit.
Described control panel is acrylic panel or film face-plate.
The beneficial effect adopting the range hood of Light control touch formula key operation provided by the invention to bring is: not only possess anti-strong electromagnetic ability, and waterproof, grease proofing, and operation keyboard surface is easy to clean.Light touch controlled key compensate for the some shortcomings in current capacitor induction type touch key-press performance, it can at strong electromagnetic, have steam, have oil pollution environment under reliably working, and the life-span is longer, has and applies widely.
Accompanying drawing explanation
Fig. 1 is the Light control touch keying range hood schematic diagram of the embodiment of the present invention.
Fig. 2 is the Light control touch keying circuit principle schematic of the embodiment of the present invention;
Fig. 3 is the Light control touch keyed system theory diagram of the embodiment of the present invention;
Fig. 4 is the Light control touch button trace routine FB(flow block) of the embodiment of the present invention;
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
As shown in Figures 1 to 4, according to the embodiment of the range hood of a kind of Light control touch formula key operation provided by the invention, comprise casing 1, the control circuit being arranged on the control panel 2 on casing and being connected with described control panel 2, described control panel 2 is provided with function key 3, corresponding described function key 3 place of inner surface of described control panel 2 is provided with light-sensitive element, described light-sensitive element exports corresponding control command to described control circuit by the luminous environment change in the described function key of induction, range hood provided by the invention adopts the control of luminous environment change realization to range hood at light-sensitive element inducing function key place, compensate for the some shortcomings in current capacitor induction type touch key-press performance, it can at strong electromagnetic, there is steam, there is reliably working under oil pollution environment, and the life-span is longer, have and apply widely, not only possesses anti-strong electromagnetic ability, and waterproof, grease proofing, operation keyboard surface is easy to clean.
The range hood Light control touch keying panel of the embodiment of the present invention adopts stainless steel faceplate, and keypress function symbol is radium carving or printed design.
See Fig. 1 to Fig. 4, according to the range hood of Light control touch formula key operation provided by the invention, described light-sensitive element is infrared triode or infrared diode, the infrared light change generation photoelectric current that described light-sensitive element responds to described function key place exports described control circuit to, when the panel place that the light-operated button of finger touch is corresponding, because the infrared light environment on its surface changes, and the infrared light environment at other button places is constant.Now, then judge that there is touch action at this button place.The change of voltage caught by MCU single-chip microcomputer, by algorithm, determines the button of action, exports corresponding signal to illumination driving circuit or fan drive circuit and buzz circuit, and shows information and the buzzer prompting of relevant action.
See Fig. 1 to Fig. 4, according to the range hood of Light control touch formula key operation provided by the invention, the photoinduction effective area of described light-sensitive element is 1-225mm
2, selectable value is 3mm
2, 10mm
2, be preferably 19.63mm
2.
See Fig. 1 to Fig. 4, according to the range hood of Light control touch formula key operation provided by the invention, signal amplification unit 42, display unit 43, buzzing unit 44, fan unit 45 and lighting unit 46 that described control circuit comprises control unit 41 and is connected with described control unit 41, the luminous environment change that described light-sensitive element senses by described signal amplification unit 42 is converted into voltage signal and exports described control unit 41 to after amplification, and described control unit 41 exports corresponding control command according to the function key 3 of the voltage signal determination action obtained.
Range hood provided by the invention relates generally to the improvement of circuit aspect, mainly comprise light-sensitive element T1 ~ T4, operational amplifier OP1 ~ OP4 and form signal amplification circuit, control unit, fan unit, lighting unit, buzzing unit, display unit etc., when the light-operated button of finger touch, to touch " illumination " button, panel place corresponding to finger touch illumination, because the luminous environment on its surface changes, and the luminous environment at other button places is constant.Now, the light-sensitive element T1 photoelectric current of respective keys changes, the terminal voltage of resistor R3 is changed, MCU one-chip machine port AN0 is sent after operational amplifier OP1 amplifies, MCU single-chip microcomputer, to after its A/D conversion process, is determined by algorithm, judges that this button has touch action with this, export corresponding signal to illumination driving circuit or fan drive circuit, and show the information of relevant action.
Described control unit comprises the MCU single-chip microcomputer, resistance R13, the electric capacity C1 ~ C3 that are connected, and wherein resistance R13, electric capacity C1 form electrify restoration circuit, and electric capacity C2, C3 are MCU microcontroller power supply filtering decoupling.
Described signal amplification circuit is made up of the resistance R3, the R6 that are connected, R9, R12, operational amplifier OP1 ~ OP4 etc.; Described buzz circuit is made up of the I/O mouth of P2.3, P2.4 of the MCU single-chip microcomputer be connected, resistance R14 ~ R17, electric capacity C4, triode Q1, Q2 and buzzer BUZ.
Described display unit is made up of the MCU single-chip microcomputer P2.10 ~ P2.11 be connected, the I/O mouth of P2.2, P2.8 ~ P2.9, P3.14 ~ P3.15, resistance R1 ~ R2, R4 ~ R5, R6 ~ R7, R10 ~ R11, LED 1R ~ LED4R, LED1B ~ LED4B etc.
See Fig. 1 to Fig. 4, according to the range hood of Light control touch formula key operation provided by the invention, the voltage signal of acquisition is exported corresponding control command by described control unit after A/D conversion and digital filtering.
See Fig. 1 to Fig. 4, according to the range hood of Light control touch formula key operation provided by the invention, control chip in described control unit is MCU single-chip microcomputer, described MCU single-chip microcomputer is the single-chip microcomputer of built-in ADC function, and ADC and analog-digital converter (English: Analog-to-digital converter) are kind equipments of the discrete signal for the continuous signal of analog form being converted to digital form.An analog-digital converter can provide signal for measuring.Equipment on the other side becomes digital analog converter.As ARM cortex-M series.
See Fig. 1 to Fig. 4, according to the range hood of Light control touch formula key operation provided by the invention, described display unit 43 is dual-colored LED light-emitting diode or charactron.
See Fig. 1 to Fig. 4, according to the range hood of Light control touch formula key operation provided by the invention, I/O output port on described control unit 41 is connected with lighting unit with display unit, buzzing unit, fan unit respectively, and control command is through corresponding drive circuit amplifying power rear drive display unit, buzzing unit, fan unit and lighting unit.
See Fig. 1 to Fig. 4, according to the range hood of Light control touch formula key operation provided by the invention, the air-blower control of described MCU single-chip microcomputer exports I/O port and is connected with fan drive circuit, and air-blower control signal is by fan drive circuit power amplification rear drive blower motor; The Lighting control of described MCU single-chip microcomputer exports I/O port and is connected with illumination driving circuit, and illumination control signal is by illumination driving circuit power amplification rear drive illuminating lamp; The buzzing of described MCU single-chip microcomputer controls to export I/O port and is connected with buzzing cue circuit, and buzzing control signal is by buzzing cue circuit power amplification rear drive buzzer, and described buzzing cue circuit is dual toned circuit.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can change these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalents thereof.
Claims (9)
1. the range hood of a Light control touch formula key operation, the control circuit comprising casing, be arranged on the control panel on casing and be connected with described control panel, described control panel is provided with function key, it is characterized in that: the corresponding described function key place of inner surface of described control panel is provided with light-sensitive element, and described light-sensitive element exports corresponding control command to described control circuit by the luminous environment change in the described function key of induction.
2. the range hood of Light control touch formula key operation as claimed in claim 1, it is characterized in that: described light-sensitive element is infrared triode or infrared diode, the infrared light change generation photoelectric current that described light-sensitive element responds to described function key place exports described control circuit to.
3. the range hood of Light control touch formula key operation as claimed in claim 1, is characterized in that: the photoinduction effective area of described light-sensitive element is 1-225mm
2.
4. the range hood of the Light control touch formula key operation as described in any one of claim 1-3, it is characterized in that: signal amplification unit, display unit, buzzing unit, fan unit and lighting unit that described control circuit comprises control unit and is connected with described control unit, the luminous environment change that described light-sensitive element senses by described signal amplification unit is converted into voltage signal and exports described control unit to after amplification, and described control unit exports corresponding control command according to the function key of the voltage signal determination action obtained.
5. the range hood of Light control touch formula key operation as claimed in claim 4, is characterized in that: the voltage signal of acquisition is exported corresponding control command by described control unit after A/D conversion and digital filtering.
6. the range hood of Light control touch formula key operation as claimed in claim 4, is characterized in that: the control chip in described control unit is MCU single-chip microcomputer.
7. the range hood of Light control touch formula key operation as claimed in claim 4, is characterized in that: described display unit is dual-colored LED light-emitting diode or charactron.
8. the range hood of Light control touch formula key operation as claimed in claim 4, it is characterized in that: the I/O output port on described control unit is connected with lighting unit with display unit, buzzing unit, fan unit respectively, control command is through corresponding drive circuit amplifying power rear drive display unit, buzzing unit, fan unit and lighting unit.
9. the range hood of Light control touch formula key operation as claimed in claim 1, is characterized in that: described control panel is acrylic panel or film face-plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510218299.2A CN104852719A (en) | 2015-04-30 | 2015-04-30 | Light-operated touching-type keying operation-based range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510218299.2A CN104852719A (en) | 2015-04-30 | 2015-04-30 | Light-operated touching-type keying operation-based range hood |
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| Publication Number | Publication Date |
|---|---|
| CN104852719A true CN104852719A (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510218299.2A Pending CN104852719A (en) | 2015-04-30 | 2015-04-30 | Light-operated touching-type keying operation-based range hood |
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| CN (1) | CN104852719A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106527303A (en) * | 2017-01-05 | 2017-03-22 | 浙江帅康电气股份有限公司 | Extractor hood with WIFI function and control method thereof |
| CN107704139A (en) * | 2017-11-08 | 2018-02-16 | 绵阳美菱软件技术有限公司 | A kind of touch induction device and touch sensible method |
| CN110460709A (en) * | 2019-08-27 | 2019-11-15 | 湖南汇亚电子科技有限公司 | A kind of industrial intelligent telephone set suitable for adverse circumstances |
| CN110647283A (en) * | 2019-09-20 | 2020-01-03 | 浙江帅康电气股份有限公司 | Touch panel assembly, touch panel cleaning locking judgment method and range hood |
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Application publication date: 20150819 |
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| RJ01 | Rejection of invention patent application after publication |