CN109035734A - A kind of household electrical appliance, human body sensing device and its induction control method - Google Patents
A kind of household electrical appliance, human body sensing device and its induction control method Download PDFInfo
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- CN109035734A CN109035734A CN201810917920.8A CN201810917920A CN109035734A CN 109035734 A CN109035734 A CN 109035734A CN 201810917920 A CN201810917920 A CN 201810917920A CN 109035734 A CN109035734 A CN 109035734A
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
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Abstract
The present invention relates to fields of home appliance technology, and in particular to arrives a kind of household electrical appliance, human body sensing device and its induction control method.The human body sensing device of this kind of household electrical appliance, including Microwave emission receiving module, conversion module, micro controller module, the Microwave emission receiving module includes microwave generator and transmitting receiving unit, the microwave generator is by the transmitting of transmitting receiving unit or receives the microwave signal that radio band is 24GHz, the conversion module will emit the received microwave signal of receiving unit and be converted to electric signal and by electric signal transmission to micro controller module, and it is close that the micro controller module according to electric signal judges whether there is human body.The microwave signal that Microwave emission receiving module output radio band of the invention is 24GHz, avoid the 2.4GHz radio band being heavily polluted in the prior art, prevent to interfere the possibility for causing false triggering because of electromagnetic environment, improve detection accuracy, and, the small volume of human body sensing device of the invention, is easily installed.
Description
Technical field
The present invention relates to fields of home appliance technology, and in particular to arrives a kind of household electrical appliance, human body sensing device and its sense
Answer control method.
Background technique
The current electric kitchen tools (for example, electric cooker, electric pressure cooking saucepan, electromagnetic oven etc.) or other of household electrical appliance many on the market
Electric appliance can not perceive user already close to the electric appliance, only connect when the hand of user actually produces physics with the button on electric appliance
After touch, display screen, function button can just be lighted, unfavorable to use under darker environment.This means that if the electric appliance is that electricity adds
Hot utensil, otherwise user, which will have to opening illuminator, just has the danger being burned.Detection people on household electrical appliance at present
The close device of body is mainly infrared sensor, and price is relatively expensive, and is installed complicated.
There are also household electrical appliance at present is approached using radar sensor detection human body, existing microwave radar human body sensing side
The universal frequency of use of case is the radar sensor of 2.4GHz, it is only necessary to which a small number of analog devices can build completion, and cost is relatively low.But
The radar sensor precision of the frequency band is lower, and works with equipment such as WIFI, bluetooths in same frequency range, causes to miss vulnerable to interference
Triggering.2.4GHz radar sensor is caused volume larger by working mechanism itself, and installation is caused to occupy larger space.
Summary of the invention
Caused by solving the problems, such as above-mentioned radar sensor because of low frequency, the present invention provides a kind of household electrical appliance, human body sense
Answer device and its induction control method.
To achieve the above object, The technical solution adopted by the invention is as follows: a kind of human body sensing device of household electrical appliance, packet
Microwave emission receiving module is included, further includes conversion module, micro controller module, the conversion module is received with Microwave emission respectively
Module, micro controller module connection, the Microwave emission receiving module include that the microwave generator being connected and transmitting receive list
Member, the microwave signal of the microwave generator output 24GHz radio band, the transmitting receiving unit emit or receive microwave
The microwave signal of device output, the conversion module will emit the received microwave signal of receiving unit and be converted to electric signal and by telecommunications
Number it is transferred to micro controller module, it is close that the micro controller module according to electric signal judges whether there is human body.
Further, the transmitting receiving unit uses slot antenna.
Further, the Microwave emission receiving module further includes the frequency mixer and operational amplifier being connected, described mixed
Frequency device is connected with microwave generator, for the small signal of output low frequency after microwave signal progress Frequency mixing processing, the operation amplifier
Device is connected with conversion module, for exporting amplified signal after amplifying processing to the small signal of low frequency and being transferred to amplified signal
Conversion module.
Further, the conversion module is comparator, and the comparator is used to microwave signal be converted to low and high level
Low and high level signal is simultaneously transferred to micro controller module by signal, and micro controller module determines whether people according to low and high level signal
Body is close.
Further, the conversion module is the AD conversion unit being set on micro controller module, and the modulus turns
Unit is changed for carrying out sampling to microwave signal and microwave signal is converted into digital signal, micro controller module is believed according to number
It is close number to determine whether human body.
The present invention also provides a kind of household electrical appliance using above-mentioned human body sensing device, the household electrical appliance include operation
Panel, the operation panel are connect with human body sensing device.
Further, which is electric cooker, electric pressure cooking saucepan or electromagnetic oven.
The present invention also provides a kind of induction control methods of above-mentioned household electrical appliance, comprising the following steps:
Step 1 persistently emits the microwave signal of 24GHz radio band by Microwave emission receiving module；
Step 2, if microwave signal is reflected by human body, is passed through with the presence of human body in pre-determined distance around the household electrical appliance
Microwave emission receiving module receives the microwave signal reflected by human body；
The microwave signal received is converted to electric signal by conversion module by step 3；
Step 4, it is close that micro controller module according to electric signal judges whether there is human body.
Further, if having around the household electrical appliance in pre-determined distance, human body is close, wake operation panel；If in household
It is close without human body in pre-determined distance around electric appliance, then shutoff operation panel.
Further, in the step 3, the conversion module is comparator, and microwave signal is converted by comparator
For low and high level signal.
Further, in the step 3, the conversion module is the analog-to-digital conversion being set on micro controller module
Unit sample to microwave signal and microwave signal is converted to digital signal by AD conversion unit.
By the above-mentioned description of this invention it is found that compared with prior art, household electrical appliance of the invention are provided with human body sense
Device is answered, the wake operation panel when human body sensing device senses that user is close reaches energy-efficient effect, also, the present invention
Microwave emission receiving module output radio band be 24GHz microwave signal, avoid being heavily polluted in the prior art
2.4GHz radio band prevents to interfere the possibility for causing false triggering because of electromagnetic environment, improves detection accuracy, radio band 24GHz's is micro-
The more small slot antenna of volume can be used as transmitting receiving unit in wave signal, keeps the volume of entire human body sensing device big
It is big to reduce, it is easily installed.
Detailed description of the invention
Fig. 1 is the connection schematic diagram of household electrical appliance in the embodiment of the present invention；
Fig. 2 is the connection schematic diagram of human body sensing device in the embodiment of the present invention one；
Fig. 3 is the flow chart of induction control method in the embodiment of the present invention；
Fig. 4 is the connection schematic diagram of human body sensing device in the embodiment of the present invention two.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, is clearly and completely retouched to the technical solution in the present invention
It states, it is clear that the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected " " connects
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Specific embodiment one:
Referring to Fig.1 shown in -3, a kind of human body sensing device of household electrical appliance, including Microwave emission receiving module 1, further include
Conversion module 2, micro controller module 3, the conversion module 2 connect with Microwave emission receiving module 1, micro controller module 3 respectively
It connects, the Microwave emission receiving module 1 includes the microwave generator 11 being connected and transmitting receiving unit 12, and the microwave occurs
Device 11 exports the microwave signal of 24GHz radio band, what transmitting receiving unit 12 transmitting or reception microwave generator 11 exported
Microwave signal, the conversion module 2 will emit the received microwave signal of receiving unit 12 and be converted to electric signal and pass electric signal
It is defeated by micro controller module 3, it is close that the micro controller module 3 according to electric signal judges whether there is human body.
The Microwave emission receiving module 1 further includes the frequency mixer 13 and operational amplifier 14 being connected, the frequency mixer
13 are connected with microwave generator 14, for the small signal of output low frequency after microwave signal progress Frequency mixing processing, the operation amplifier
Device 14 is connected with conversion module 3, for exporting amplified signal after amplifying processing to the small signal of low frequency and passing amplified signal
It is defeated by conversion module 3, the conversion module 2 is comparator 21, and the comparator 21 is used to microwave signal is converted to height electricity
Low and high level signal is simultaneously transferred to micro controller module 3 by ordinary mail number, and micro controller module 3 has according to the judgement of low and high level signal
It is close without human body.
The operation principle of the present invention is that: microwave generator 11 passes through transmitting receiving unit 12 constantly transmitting 24GHz radio band
Microwave signal, if there is human body close, microwave signal is reflected by human body, so microwave generator 11 by transmitting receiving antenna 3
The microwave signal reflected by human body is received, microwave signal small signal of output low frequency after frequency mixer 13 carries out Frequency mixing processing is low
Frequently small signal is received by operational amplifier 14 again, and output amplification is believed after the small signal of low frequency is amplified processing by operational amplifier 14
Number, and amplified signal is transferred to comparator 21, amplified signal is converted to low and high level signal by comparator 21, and will height electricity
Ordinary mail number is transferred to micro controller module 3, and it is close that micro controller module 3 according to low and high level signal judges whether there is human body.Its
24GHz radio band microwave signal that middle microwave generator 11 exports is avoided seriously to be polluted by equipment such as WIFI, bluetooths
2.4GHz radio band prevents to interfere the possibility for causing false triggering because of electromagnetic environment, improves detection accuracy, in addition, the transmitting connects
It receives unit 12 and uses slot antenna, slot antenna volume is more small, greatly reduces entire human body sensing device volume, is convenient for
Installation is on household appliances.
The present invention also provides a kind of household electrical appliance using above-mentioned human body sensing device, the household electrical appliance include operation
Panel 4, the operation panel 4 are connect with human body sensing device, which can be electric cooker, electric pressure cooking saucepan or electromagnetic oven
Deng in the present embodiment, household electrical appliance are electric cooker.
The present invention also provides a kind of induction control methods of above-mentioned household electrical appliance, comprising the following steps:
Step 1 persistently emits the microwave signal of 24GHz radio band by Microwave emission receiving module 1；
Step 2, if microwave signal is reflected by human body, is passed through with the presence of human body in pre-determined distance around the household electrical appliance
Microwave emission receiving module 1 receives the microwave signal reflected by human body, the preferred 1-1.5m of pre-determined distance, in the present embodiment
In, using 1.2m.
The microwave signal received is converted to electric signal by conversion module 2 by step 3, the conversion module 2 be than
Compared with device 21, microwave signal is converted to by comparator 21 by low and high level signal.
Step 4, it is close that micro controller module 3 according to low and high level signal judges whether there is human body, if in household electrical appliance week
Enclosing in pre-determined distance has that human body is close, then wake operation panel, when user is close, fast wake-up operation panel, meanwhile, operation
Display screen, indicator light on panel etc. are all illuminating states, user-friendly；If not having around the household electrical appliance in pre-determined distance
Having that human body is close, then shutoff operation panel, after operation panel is closed, household electrical appliance do not receive operation panel and are operated, then,
At this point, reducing the probability of false triggering if having false triggering caused by the interference of non-artificial operation all and being invalid, improving operation
The anti-interference ability of panel improves the reliability of household electrical appliance, meanwhile, display screen, indicator light on operation panel etc. are all
OFF state reduces the waste of electric energy, reaches energy-saving and environment-friendly effect.
Household electrical appliance of the invention are provided with human body sensing device, the wake-up when human body sensing device senses that user is close
Operation panel reaches energy-efficient effect, also, the microwave that Microwave emission receiving module output radio band of the invention is 24GHz
Signal avoids the 2.4GHz radio band being heavily polluted in the prior art, prevent to interfere because of electromagnetic environment cause false triggering can
Can, detection accuracy is improved, the microwave signal of radio band 24GHz can be used the more small slot antenna of volume and receive as transmitting
Unit greatly reduces the volume of entire human body sensing device, is easily installed.
Specific implementation two:
Referring to shown in Fig. 4, the present embodiment is with the difference of embodiment one: the conversion module 2 is to be set to microcontroller
AD conversion unit 31 in module 3 sample and convert microwave signal to microwave signal by AD conversion unit 31
For digital signal.The analog-to-digital conversion module 31 is used to carry out sampling to microwave signal and microwave signal is converted to digital letter
Number, it is close that micro controller module 3 according to digital signal determines whether human body.
In the present embodiment, it by the way that analog-to-digital conversion module 31 is arranged to replace comparator 21 in micro controller module 3, saves
Cost, analog-to-digital conversion module 21 sample to the microwave signal that human body reflects and microwave signal are converted to digital signal, pass through
It is close to determine whether human body to cross 3 internal algorithm of micro controller module processing digital signal.
It is appreciated that the present invention is described by some embodiments, and what those skilled in the art knew, it is not taking off
In the case where from the spirit and scope of the present invention, various changes or equivalence replacement can be carried out to these features and embodiment.Separately
Outside, under the teachings of the present invention, can modify to these features and embodiment with adapt to particular situation and material without
The spirit and scope of the present invention can be detached from.Therefore, the present invention is not limited to the particular embodiment disclosed, and is fallen with
Embodiment within the scope of claims hereof belong to the present invention protect in the range of.
Claims (11)
1. a kind of human body sensing device of household electrical appliance, including Microwave emission receiving module, it is characterised in that: further include modulus of conversion
Block, micro controller module, the conversion module are connect with Microwave emission receiving module, micro controller module respectively, the microwave
Transmitting and receiving module includes the microwave generator being connected and transmitting receiving unit, and the microwave generator exports 24GHz radio frequency
The microwave signal of section, the transmitting receiving unit transmitting or the microwave signal for receiving microwave generator output, the conversion module
The received microwave signal of receiving unit will be emitted and be converted to electric signal and by electric signal transmission to micro controller module, the micro-control
It is close that device module processed according to electric signal judges whether there is human body.
2. the human body sensing device of household electrical appliance according to claim 1, it is characterised in that: the transmitting receiving unit is adopted
Use slot antenna.
3. the human body sensing device of household electrical appliance according to claim 1, it is characterised in that: the Microwave emission receives mould
Block further includes the frequency mixer and operational amplifier being connected, and the frequency mixer is connected with microwave generator, for microwave signal
Carry out the small signal of output low frequency after Frequency mixing processing, the operational amplifier is connected with conversion module, be used for the small signal of low frequency into
Amplified signal is exported after row enhanced processing and amplified signal is transferred to conversion module.
4. the human body sensing device of household electrical appliance according to claim 1, it is characterised in that: the conversion module is to compare
Device, microwave signal for being converted to low and high level signal and low and high level signal being transferred to microcontroller mould by the comparator
Block, it is close that micro controller module according to low and high level signal determines whether human body.
5. the human body sensing device of household electrical appliance according to claim 1, it is characterised in that: the conversion module is setting
In the AD conversion unit on micro controller module, the AD conversion unit is used to carry out microwave signal sampling and by microwave
Signal is converted to digital signal, and it is close that micro controller module according to digital signal determines whether human body.
6. a kind of household electrical appliance, including operation panel, it is characterised in that: including people described in any one of claim 1-5
Body sensing device, the operation panel are connect with human body sensing device.
7. household electrical appliance according to claim 6, it is characterised in that: the household electrical appliance are electric cooker, electric pressure cooking saucepan or electricity
Magnetic furnace.
8. a kind of induction control method of household electrical appliance, which is characterized in that the induction control method the following steps are included:
Step 1 persistently emits the microwave signal of 24GHz radio band by Microwave emission receiving module；
Step 2, if microwave signal is reflected by human body, passes through microwave with the presence of human body in pre-determined distance around the household electrical appliance
Transmitting and receiving module receives the microwave signal reflected by human body；
The microwave signal received is converted to electric signal by conversion module by step 3；
Step 4, it is close that micro controller module according to electric signal judges whether there is human body.
9. the induction control method of household electrical appliance according to claim 8, it is characterised in that: if pre- around household electrical appliance
If having that human body is close apart from interior, then wake operation panel；If close without human body in pre-determined distance around the household electrical appliance, close
Closed operation panel.
10. the induction control method of household electrical appliance according to claim 8, it is characterised in that: in the step 3, institute
Stating conversion module is comparator, and microwave signal is converted to low and high level signal by comparator.
11. the induction control method of household electrical appliance according to claim 8, it is characterised in that: in the step 3, institute
Stating conversion module is the AD conversion unit being set on micro controller module, is carried out by AD conversion unit to microwave signal
It samples and microwave signal is converted into digital signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810917920.8A CN109035734A (en) | 2018-08-13 | 2018-08-13 | A kind of household electrical appliance, human body sensing device and its induction control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810917920.8A CN109035734A (en) | 2018-08-13 | 2018-08-13 | A kind of household electrical appliance, human body sensing device and its induction control method |
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| CN109035734A true CN109035734A (en) | 2018-12-18 |
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| CN201810917920.8A Pending CN109035734A (en) | 2018-08-13 | 2018-08-13 | A kind of household electrical appliance, human body sensing device and its induction control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113625348A (en) * | 2021-06-22 | 2021-11-09 | 惠州市元盛科技有限公司 | Method for judging approach or departure of human body |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85104668A (en) * | 1985-06-18 | 1986-12-24 | 塞伯海洋电气公司 | The measuring height by microwave method and apparatus |
| CN201229402Y (en) * | 2008-03-14 | 2009-04-29 | 武光杰 | Microwave sensor |
| CN202583455U (en) * | 2012-02-10 | 2012-12-05 | 南充鑫源通讯技术有限公司 | Human-in-vehicle microwave detector |
| CN104678828A (en) * | 2013-12-03 | 2015-06-03 | 南充鑫源通讯技术有限公司 | Microwave induction control method and microwave induction control device |
| CN204887612U (en) * | 2015-08-24 | 2015-12-16 | 宁波维纳诗节能科技有限公司 | Control system of microwave response lamps and lanterns |
-
2018
- 2018-08-13 CN CN201810917920.8A patent/CN109035734A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85104668A (en) * | 1985-06-18 | 1986-12-24 | 塞伯海洋电气公司 | The measuring height by microwave method and apparatus |
| CN201229402Y (en) * | 2008-03-14 | 2009-04-29 | 武光杰 | Microwave sensor |
| CN202583455U (en) * | 2012-02-10 | 2012-12-05 | 南充鑫源通讯技术有限公司 | Human-in-vehicle microwave detector |
| CN104678828A (en) * | 2013-12-03 | 2015-06-03 | 南充鑫源通讯技术有限公司 | Microwave induction control method and microwave induction control device |
| CN204887612U (en) * | 2015-08-24 | 2015-12-16 | 宁波维纳诗节能科技有限公司 | Control system of microwave response lamps and lanterns |
Non-Patent Citations (1)
| Title |
|---|
| 谢剑斌等编著: "《视觉感知与智能视频监控》", 31 March 2012, 国防科技大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113625348A (en) * | 2021-06-22 | 2021-11-09 | 惠州市元盛科技有限公司 | Method for judging approach or departure of human body |
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Application publication date: 20181218 |