CN207179586U - Pyroelectric human body induction installation applied to refrigerator - Google Patents
Pyroelectric human body induction installation applied to refrigerator Download PDFInfo
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- CN207179586U CN207179586U CN201720692357.XU CN201720692357U CN207179586U CN 207179586 U CN207179586 U CN 207179586U CN 201720692357 U CN201720692357 U CN 201720692357U CN 207179586 U CN207179586 U CN 207179586U
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- human body
- pyroelectric
- signal conversion
- induction installation
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Abstract
The utility model is a kind of pyroelectric human body induction installation applied to refrigerator, it is characterised in that：The pyroelectric human body induction installation includes power module of voltage regulation, Fresnel Lenses, the pyroelectric infrared sensor being sequentially connected, calculation process module, status control module, signal conversion module；The power module of voltage regulation connects the pyroelectric infrared sensor, calculation process module, status control module, signal conversion module respectively；The Fresnel Lenses is used to focusing on human body infrared, and forms infrared radiation that regions of high sensitivity and blind area be alternately present to the detection member of the pyroelectric infrared sensor；The display device of the signal conversion module and controlled device establishes communication connection, and the signal conversion module is used for the light on and off for controlling the display device of the controlled device.
Description
Technical field
A kind of pyroelectric human body induction installation is the utility model is related to, particularly discloses a kind of pyroelectricity applied to refrigerator
Human body sensing device.
Background technology
Rpyroelectric infrared control technology is used widely in fields such as Lighting control, burglar alarms, its work
It is stable, low in energy consumption, reliability is high, strong antijamming capability.Because tradition machinery refrigerator does not have any Man Machine Interface, simply
The big box of simple storage food materials, rpyroelectric infrared control technology do not have any available ground on this kind of refrigerator.With section
Skill develops rapidly, and refrigerator becomes more and more functionalization, hommization and intellectuality, start on refrigerator increase micro computer control,
The functions such as Man Machine Interface, remote control and audio-visual amusement, typically control refrigerator display screen using physical button mode
Light on and off.
The content of the invention
The purpose of this utility model is solve the defects of prior art, there is provided a kind of pyroelectric human body applied to refrigerator
Induction installation, it can be whether there is as the voltage input of refrigerator display device using rpyroelectric infrared control technology detection human body,
Realize that people walks screen and gone out, people Lai Pingliang automatic sensing function makes that refrigerator is more intelligent, more energy efficient environmental protection.
What the utility model was realized in：A kind of pyroelectric human body induction installation applied to refrigerator, it is characterised in that：
The pyroelectric human body induction installation include power module of voltage regulation, Fresnel Lenses, the pyroelectric infrared sensor being sequentially connected,
Calculation process module, status control module, signal conversion module；The power module of voltage regulation connects the rpyroelectric infrared respectively
Sensor, calculation process module, status control module, signal conversion module；The Fresnel Lenses is used to focus on human body infrared
Line, and the detection for forming infrared radiation to the pyroelectric infrared sensor that regions of high sensitivity and blind area are alternately present is first
On；The display device of the signal conversion module and controlled device establishes communication connection, and the signal conversion module is used to control
The light on and off of the display device of the controlled device.The pyroelectric infrared sensor is used to detect human body infrared and exported corresponding
Electric signal to the calculation process module；The calculation process module is used to receive the pyroelectric infrared sensor output
Electric signal, and process signal is exported to the status control module after being handled；The status control module is used to receive institute
State the process signal of calculation process module output and carry out state control, judge that human body whether there is and output a control signal to institute
State signal conversion module；The signal conversion module is used for the control signal for receiving status control module output and its is anti-
Phase, the display device of output inversion signal to the controlled device, the inversion signal exported by the signal conversion module control
The light on and off of the display device；The power module of voltage regulation is the pyroelectric infrared sensor, calculation process module, state control
Molding block, signal conversion module, which provide, stablizes clean working power and reference voltage.
The calculation process module includes operation amplifier unit, temperature compensation unit and adjustment of sensitivity unit, the fortune
Calculate amplifying unit respectively with the pyroelectric infrared sensor, temperature compensation unit, adjustment of sensitivity unit, status control module
Connection.The operation amplifier unit is used to be amplified processing to the electric signal of pyroelectric infrared sensor output, and defeated
Go out process signal to the status control module；The temperature compensation unit is used for the operation amplifier unit because of environment temperature
Change in gain compensates in time caused by change, the gain of the operation amplifier unit is always maintained at stabilization；It is described sensitive
Adjustment unit is spent to be used for the gain-adjusted of the operation amplifier unit to suitable scope.
The status control module includes connected window comparator unit and delay latch units, the window comparator unit
Also it is connected with the operation amplifier unit, the delay latch units are also connected with the signal conversion module.The window ratio
Compare compared with unit for the process signal and the computing compared with reference voltage, output for receiving the calculation process module output
Signal is to the delay latch units；The comparison signal that the delay latch units are used to export the window comparator unit turns
Control signal is changed to, and is transported to the signal conversion module.
The controlled device is refrigerator.The display device is in charactron, LED, liquid crystal display, LED screen, OLED screen
It is one or more.
The beneficial effects of the utility model are：The utility model is after the display device sleep of refrigerator, as long as human body enters
The display device of extinguishing can be just lighted in search coverage of the present utility model automatically, can conduct without manual click keys
The voltage input of refrigerator display device, refrigerator is allowed to extinguish display device after people leaves, people lights display device after walking close to refrigerator, real
Existing people walks screen and gone out, people Lai Pingliang automatic sensing function, makes that refrigerator is more intelligent, more energy efficient environmental protection.Phenanthrene of the present utility model
Nie Er lens can be assemblied in any part of refrigerator with arbitrary dimension shape, and it is exposed or any to do part
Color, mutually arranged in pairs or groups with refrigerator color.
Brief description of the drawings
Fig. 1 is the utility model structure block diagram.
Embodiment
With reference to the accompanying drawings 1, the utility model is applied to the pyroelectric human body induction installation of refrigerator, including power module of voltage regulation,
Fresnel Lenses, the pyroelectric infrared sensor being sequentially connected, calculation process module, status control module, signal conversion module；
The power module of voltage regulation connects the pyroelectric infrared sensor, calculation process module, status control module, signal and turned respectively
Change the mold block；The Fresnel Lenses be used to focusing on it is human body infrared, and form regions of high sensitivity and blind area be alternately present it is infrared
Beta radiation is in the detection member of the pyroelectric infrared sensor；The display device of the signal conversion module and controlled device is built
Vertical communication connection, the signal conversion module are used for the light on and off for controlling the display device of the controlled device.The pyroelectricity is red
Outer sensor is used to detect human body infrared and export corresponding electric signal to the calculation process module；The calculation process mould
Block is used for the electric signal for receiving the pyroelectric infrared sensor output, and exports process signal to the state after being handled
Control module；The status control module is used to receive the process signal of the calculation process module output and carries out state control
System, judges that human body whether there is and output a control signal to the signal conversion module；The signal conversion module is used to receive
The control signal of the status control module output is simultaneously anti-phase by its, and the display of output inversion signal to the controlled device is set
Standby, the inversion signal exported by the signal conversion module controls the light on and off of the display device；The power module of voltage regulation is
The pyroelectric infrared sensor, calculation process module, status control module, signal conversion module, which provide, stablizes clean direct current
Working power and reference voltage.
The calculation process module includes operation amplifier unit, temperature compensation unit and adjustment of sensitivity unit, the fortune
Calculate amplifying unit respectively with the pyroelectric infrared sensor, temperature compensation unit, adjustment of sensitivity unit, status control module
Connection.The operation amplifier unit is used to be amplified processing to the electric signal of pyroelectric infrared sensor output, and defeated
Go out process signal to the status control module；The temperature compensation unit is used for the operation amplifier unit because of environment temperature
Change in gain compensates in time caused by change, the gain of the operation amplifier unit is always maintained at stabilization；It is described sensitive
Adjustment unit is spent to be used for the gain-adjusted of the operation amplifier unit to suitable scope.
The status control module includes connected window comparator unit and delay latch units, the window comparator unit
Also it is connected with the operation amplifier unit, the delay latch units are also connected with the signal conversion module.The window ratio
Compare compared with unit for the process signal and the computing compared with reference voltage, output for receiving the calculation process module output
Signal is to the delay latch units；The comparison signal that the delay latch units are used to export the window comparator unit turns
Control signal is changed to, and is transported to the signal conversion module.
The controlled device is refrigerator.The display device is in charactron, LED, liquid crystal display, LED screen, OLED screen
It is one or more.
During utility model works, human body infrared in search coverage focuses on the heat by the Fresnel Lenses and released
In the detection member of electric infrared sensor, while the highly sensitive area of infra-red radiation and blind area of alternately change are also produced, it is described to adapt to
The detection member of pyroelectric infrared sensor requires the continually changing characteristic of signal；The Fresnel Lenses can adjust search coverage
Scope, including detection range and detection angle.
When someone is appeared in search coverage, the pyroelectric infrared sensor can change the infrared signal of human body
Used for 1mV or so ultra-weak electronic signal for the calculation process module.
The calculation process module receives the electric signal of the pyroelectric infrared sensor output, and is put by the computing
Big unit exports process signal to the status control module after being amplified processing.
The processing that the status control module receives the calculation process module output by the window comparator unit is believed
Number and the computing compared with reference voltage, if the amplitude of the process signal received exceed the window comparator unit up and down
Reference voltage range is limited, the window comparator unit will export effective trigger signal：High level " 1 " latches single to the delay
Member；In the bound reference voltage range of window comparator unit, if the window compares the amplitude of the process signal received
Unit will export invalid trigger signal：Low level " 0 " arrives the delay latch units.The delay latch units will be touched effectively
Signalling is converted to the square wave control signal that a cycle is 2S, dutycycle is 50% and is transported to the signal conversion module；It is described
Delay latch units do not respond to invalid trigger signal, keep low level control signal, and low level control signal is conveyed
To the signal conversion module.
The phase inverter that the signal conversion module is made up of a triode or FET, the signal modulus of conversion
The control signal of the block reception status control module output is simultaneously anti-phase by its, i.e., high-level control signal is changed into low level letter
Number, low level control signal is changed into high level signal, inversion signal is then exported to the display device of the controlled device, by institute
The inversion signal for stating signal conversion module output controls the light on and off of the display device.
The power module of voltage regulation is made up of filter capacitor and low pressure difference linear voltage regulator, can be the rpyroelectric infrared
Sensor, calculation process module, status control module, signal conversion module, which provide, stablizes clean DC supply and reference
Voltage.
The utility model is after the display device sleep of refrigerator, as long as human body enters in search coverage of the present utility model just
The display device of extinguishing can be lighted automatically, without manual click keys, can allow ice as the voltage input of refrigerator display device
Case extinguishes display device after people leaves, and people lights display device after walking close to refrigerator, realizes that people walks screen and gone out, people Lai Pingliang's is automatic
Inducing function, makes that refrigerator is more intelligent, more energy efficient environmental protection.Fresnel Lenses of the present utility model can be with arbitrary dimension shape
Any part of refrigerator is assemblied in, and does that part is exposed or any color, is mutually arranged in pairs or groups with refrigerator color.
Claims (5)
- A kind of 1. pyroelectric human body induction installation applied to refrigerator, it is characterised in that：The pyroelectric human body induction installation bag Include power module of voltage regulation, Fresnel Lenses, the pyroelectric infrared sensor being sequentially connected, calculation process module, state control mould Block, signal conversion module；The power module of voltage regulation connects the pyroelectric infrared sensor, calculation process module, shape respectively State control module, signal conversion module；The Fresnel Lenses is used to focusing on human body infrared, and forms regions of high sensitivity and blind The infrared radiation that area is alternately present is in the detection member of the pyroelectric infrared sensor；The signal conversion module with it is controlled The display device of device establishes communication connection, and the signal conversion module is used for the bright of the display device for controlling the controlled device Go out.
- 2. the pyroelectric human body induction installation applied to refrigerator according to claim 1, it is characterised in that：The computing Processing module includes operation amplifier unit, temperature compensation unit and adjustment of sensitivity unit, the operation amplifier unit respectively with The pyroelectric infrared sensor, temperature compensation unit, adjustment of sensitivity unit, status control module connection.
- 3. the pyroelectric human body induction installation applied to refrigerator according to claim 2, it is characterised in that：The state Control module includes connected window comparator unit and delay latch units, the window comparator unit also with the operation amplifier Unit is connected, and the delay latch units are also connected with signal conversion module.
- 4. the pyroelectric human body induction installation applied to refrigerator according to claim 1, it is characterised in that：It is described controlled Device is refrigerator.
- 5. the pyroelectric human body induction installation applied to refrigerator according to claim 1, it is characterised in that：The display Equipment is the one or more in charactron, LED, liquid crystal display, LED screen, OLED screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720692357.XU CN207179586U (en) | 2017-06-15 | 2017-06-15 | Pyroelectric human body induction installation applied to refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720692357.XU CN207179586U (en) | 2017-06-15 | 2017-06-15 | Pyroelectric human body induction installation applied to refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207179586U true CN207179586U (en) | 2018-04-03 |
Family
ID=61734833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720692357.XU Active CN207179586U (en) | 2017-06-15 | 2017-06-15 | Pyroelectric human body induction installation applied to refrigerator |
Country Status (1)
| Country | Link |
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| CN (1) | CN207179586U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111256404A (en) * | 2020-02-17 | 2020-06-09 | 海信（山东）冰箱有限公司 | Storage device and control method thereof |
-
2017
- 2017-06-15 CN CN201720692357.XU patent/CN207179586U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111256404A (en) * | 2020-02-17 | 2020-06-09 | 海信（山东）冰箱有限公司 | Storage device and control method thereof |
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