CN107802241A - A kind of detecting system of human body - Google Patents
A kind of detecting system of human body Download PDFInfo
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- CN107802241A CN107802241A CN201711213548.4A CN201711213548A CN107802241A CN 107802241 A CN107802241 A CN 107802241A CN 201711213548 A CN201711213548 A CN 201711213548A CN 107802241 A CN107802241 A CN 107802241A
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- electric capacity
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- human body
- processor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0093—Detecting, measuring or recording by applying one single type of energy and measuring its conversion into another type of energy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/0507—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves using microwaves or terahertz waves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7225—Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
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- Biomedical Technology (AREA)
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- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Radar Systems Or Details Thereof (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of detecting system of human body, including microwave remote sensor, trapper, amplifier, shaping circuit and processor；Microwave remote sensor is used to launch microwave and detect reception back wave, and transmitted wave and back wave are mixed, output Doppler signal to trapper；Trapper, for removing the interference signal in Doppler signal, and the Doppler signal after filtering out is exported to amplifier；Amplifier, for amplifying the Doppler signal after filtering out, the signal after amplification is exported to shaping circuit and processor；Shaping circuit, for carrying out shaping to the signal after amplification, the signal after output Shaping to processor；Processor, judge the behavioral aspect of human body for being handled the signal of reception；Detection of the present invention to human motion can reach good, reliable Detection results.
Description
Technical field
The present invention relates to Microwave Detecting Technology field, particularly a kind of detecting system of human body.
Background technology
Microwave imaging refers to a kind of imaging means using microwave as information carrier, substantially belongs to Inverse Problems in Electromagnetics.
Because it is both with the amplitude information scattered by imageable target, also with its phase information, therefore also referred to as microwave holography is imaged.Its
Principle is to use microwave irradiation testee, then by the measured value of object externals stray field come the shape of reconstruction of objects or（It is multiple）
Dielectric constant is distributed.
Microwave is frequency in 300MHz~300GHz, and respective wavelength is 1m~1mm electromagnetic wave.Compared with radio wave,
Microwave has the characteristics that frequency height, bandwidth, information capacity is big, wavelength is short, can penetrate ionosphere and good directionality.
Microwave imaging refers to a kind of imaging means using microwave as information carrier, and its principle is to use microwave irradiation measured object
Body, then it is distributed by the measured value of object externals stray field come the shape of reconstruction of objects or (multiple) dielectric constant.Due to dielectric
Constant size and biological tissue water content are closely related, therefore microwave imaging is especially suitable for imaging in biological tissues, when big does not connect
Continuous property limits the efficiency of ultrasonic imaging, the low-density of biological tissue limit X ray in use, microwave can but play
Unique effect, obtains the information that other imaging means can not obtain.Microwave imaging have safety, cost it is low, in theory can be right
The features such as temperature imaging.
The problem of imaging is individual back scattering, it extracts target signature information according to the echo-signal inverting of scattering.For people
The derived techniques such as known X-ray, laser, sound wave, microwave, millimeter wave, the simply information carrier of selection and the phase of target
Interaction is different.And microwave imaging is to rely on the interaction of electromagnetic wave and target, excavates, carry from scatter echo signal
Target information is taken, reconstructs target signature.Its main difficulty is that microwave wavelength is closely sized to tested organism, and diffraction is bright
It is aobvious, it is impossible to using the projection imaging method similar to X ray, the more complicated inversion algorithm based on back scattering can only be used
Microwave chromatography imaging method is that under the excitation of microwave, measured object produces one by low power microwave directive testee
Scattered field, the scattered field are relevant with the complex dielectric permittivity distribution inside measured object.By the measurement to scattered field, measured object is obtained
Relative dielectric constant and electrical conductivity (i.e. complex dielectric permittivity) distribution, be achieved with being tested after carrying out corresponding information processing
The microwave tomographic map of thing internal object.
Microwave thermoacoustic imaging is that microwave pulse is irradiated to organism, and part microwave energy is absorbed by tissue rapidly and turned
Change heat into, the rise of organization internal temperature, relative organization surface forms thermograde.Because propagation velocity of electromagnetic wave is much larger than sound
The spread speed of ripple, it is believed that thermal expansion caused by microwave irradiation occurs in moment.Biological tissue produces adaptability to changes, so as to
Outer propagation thermoacoustic ripple.Its essence of thermal acoustic imaging is exactly inversely to calculate thermoacoustic source or the space of microwave absorbability by hot acoustic signals
Distribution, two most basic conditions of microwave thermoacoustic imaging technology:One is enough imaging resolutions;Another is enough wears
Saturating depth.
The problem of complicated, cost is high, Detection results are bad be present in existing detecting system of human body.
The content of the invention
The technical problems to be solved by the invention are overcome the deficiencies in the prior art and provide a kind of detecting system of human body, this
Detection of the invention to human motion can reach good, reliable Detection results.
The present invention uses following technical scheme to solve above-mentioned technical problem：
According to a kind of detecting system of human body proposed by the present invention, including microwave remote sensor, trapper, amplifier, shaping circuit and
Processor；Wherein,
Microwave remote sensor is used to launch microwave and detect reception back wave, and transmitted wave and back wave are mixed, and output is more
General signal of strangling is to trapper；
Trapper, for removing the interference signal in Doppler signal, and the Doppler signal after filtering out is exported to amplifier；
Amplifier, for amplifying the Doppler signal after filtering out, the signal after amplification is exported to shaping circuit and processor；
Shaping circuit, for carrying out shaping to the signal after amplification, the signal after output Shaping to processor；
Processor, judge the behavioral aspect of human body for being handled the signal of reception；
Trapper includes the first to the 8th electric capacity and the first to the 6th resistance, and one end of the first electric capacity and one end of first resistor connect
Connect, the other end of the first electric capacity is connected respectively with one end of the 5th resistance, one end of the second electric capacity, the other end of the second electric capacity with
One end of second resistance, one end of the 3rd electric capacity, one end of 3rd resistor connect respectively, the other end of the 3rd electric capacity and the 6th electricity
One end of resistance, one end of the 4th electric capacity are connected respectively, and the other end of the 4th electric capacity is connected with one end of the 4th resistance, the 4th resistance
The other end be connected respectively with one end, one end of the 8th electric capacity, the other end of 3rd resistor of the 7th electric capacity, second resistance it is another
The other end of one end and first resistor, one end, one end of the 6th electric capacity of the 5th electric capacity connect respectively, the 5th resistance it is another
End, the other end of the 5th electric capacity, the other end of the 6th electric capacity, the other end of the 6th resistance, the other end of the 7th electric capacity, the 8th electricity
The other end of appearance is connected to ground respectively.
As a kind of further prioritization scheme of detecting system of human body of the present invention, processor is single-chip microcomputer.
As a kind of further prioritization scheme of detecting system of human body of the present invention, single-chip microcomputer is STM32 series monolithics
Machine.
As a kind of further prioritization scheme of detecting system of human body of the present invention, the type of the first electric capacity and the second electric capacity
It is number identical.
As a kind of further prioritization scheme of detecting system of human body of the present invention, the type of the 3rd electric capacity and the 4th electric capacity
It is number identical.
The present invention compared with prior art, has following technique effect using above technical scheme：
（1）Detection of the present invention to human motion can reach good, reliable Detection results；
（2）The present invention has very high Detection accuracy, meets requirement；
（3）Simple in construction, easy to use and cost of the invention is low.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of detecting system of human body, including microwave remote sensor, trapper, amplifier, shaping circuit and processor；
Wherein,
Microwave remote sensor is used to launch microwave and detect reception back wave, and transmitted wave and back wave are mixed, and output is more
General signal of strangling is to trapper；
Trapper, for removing the interference signal in Doppler signal, and the Doppler signal after filtering out is exported to amplifier；
Amplifier, for amplifying the Doppler signal after filtering out, the signal after amplification is exported to shaping circuit and processor；
Shaping circuit, for carrying out shaping to the signal after amplification, the signal after output Shaping to processor；
Processor, judge the behavioral aspect of human body for being handled the signal of reception；
Trapper includes the first to the 8th electric capacity and the first to the 6th resistance, and one end of the first electric capacity and one end of first resistor connect
Connect, the other end of the first electric capacity is connected respectively with one end of the 5th resistance, one end of the second electric capacity, the other end of the second electric capacity with
One end of second resistance, one end of the 3rd electric capacity, one end of 3rd resistor connect respectively, the other end of the 3rd electric capacity and the 6th electricity
One end of resistance, one end of the 4th electric capacity are connected respectively, and the other end of the 4th electric capacity is connected with one end of the 4th resistance, the 4th resistance
The other end be connected respectively with one end, one end of the 8th electric capacity, the other end of 3rd resistor of the 7th electric capacity, second resistance it is another
The other end of one end and first resistor, one end, one end of the 6th electric capacity of the 5th electric capacity connect respectively, the 5th resistance it is another
End, the other end of the 5th electric capacity, the other end of the 6th electric capacity, the other end of the 6th resistance, the other end of the 7th electric capacity, the 8th electricity
The other end of appearance is connected to ground respectively.
Processor is single-chip microcomputer, and single-chip microcomputer is STM32 series monolithics.The model of first electric capacity and the second electric capacity is identical.
The model of 3rd electric capacity and the 4th electric capacity is identical.
Detection of the present invention to human motion can reach good, reliable Detection results；The present invention has very high inspection
Accuracy rate is surveyed, meets requirement；Simple in construction, easy to use and cost of the invention is low.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deductions can also be made or substituted, should all be considered as belonging to the present invention's
Protection domain.
Claims (5)
1. a kind of detecting system of human body, it is characterised in that including microwave remote sensor, trapper, amplifier, shaping circuit and processing
Device；Wherein,
Microwave remote sensor is used to launch microwave and detect reception back wave, and transmitted wave and back wave are mixed, and output is more
General signal of strangling is to trapper；
Trapper, for removing the interference signal in Doppler signal, and the Doppler signal after filtering out is exported to amplifier；
Amplifier, for amplifying the Doppler signal after filtering out, the signal after amplification is exported to shaping circuit and processor；
Shaping circuit, for carrying out shaping to the signal after amplification, the signal after output Shaping to processor；
Processor, judge the behavioral aspect of human body for being handled the signal of reception；
Trapper includes the first to the 8th electric capacity and the first to the 6th resistance, and one end of the first electric capacity and one end of first resistor connect
Connect, the other end of the first electric capacity is connected respectively with one end of the 5th resistance, one end of the second electric capacity, the other end of the second electric capacity with
One end of second resistance, one end of the 3rd electric capacity, one end of 3rd resistor connect respectively, the other end of the 3rd electric capacity and the 6th electricity
One end of resistance, one end of the 4th electric capacity are connected respectively, and the other end of the 4th electric capacity is connected with one end of the 4th resistance, the 4th resistance
The other end be connected respectively with one end, one end of the 8th electric capacity, the other end of 3rd resistor of the 7th electric capacity, second resistance it is another
The other end of one end and first resistor, one end, one end of the 6th electric capacity of the 5th electric capacity connect respectively, the 5th resistance it is another
End, the other end of the 5th electric capacity, the other end of the 6th electric capacity, the other end of the 6th resistance, the other end of the 7th electric capacity, the 8th electricity
The other end of appearance is connected to ground respectively.
2. a kind of detecting system of human body according to claim 1, it is characterised in that processor is single-chip microcomputer.
3. a kind of detecting system of human body according to claim 2, it is characterised in that single-chip microcomputer is STM32 series monolithics.
A kind of 4. detecting system of human body according to claim 1, it is characterised in that the model of the first electric capacity and the second electric capacity
It is identical.
A kind of 5. detecting system of human body according to claim 1, it is characterised in that the model of the 3rd electric capacity and the 4th electric capacity
It is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711213548.4A CN107802241A (en) | 2017-11-28 | 2017-11-28 | A kind of detecting system of human body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711213548.4A CN107802241A (en) | 2017-11-28 | 2017-11-28 | A kind of detecting system of human body |
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| Publication Number | Publication Date |
|---|---|
| CN107802241A true CN107802241A (en) | 2018-03-16 |
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ID=61590100
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711213548.4A Pending CN107802241A (en) | 2017-11-28 | 2017-11-28 | A kind of detecting system of human body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110088643A (en) * | 2018-08-31 | 2019-08-02 | 深圳迈睿智能科技有限公司 | There are detection methods there are detector and its human body for human body |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441451A (en) * | 2008-12-16 | 2009-05-27 | 中山火炬职业技术学院 | Control technique of cm segment microwave sensor |
| CN201732163U (en) * | 2010-05-28 | 2011-02-02 | 四川海讯电子开发有限公司 | Anti-collision warning radar of automobile |
| CN102445696A (en) * | 2011-09-14 | 2012-05-09 | 李飞宇 | Human body detection device of intelligent toilet |
| CN102771055A (en) * | 2010-02-17 | 2012-11-07 | 萨博公司 | Wideband transmitter/receiver arrangement for multifunctional radar and communication |
-
2017
- 2017-11-28 CN CN201711213548.4A patent/CN107802241A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441451A (en) * | 2008-12-16 | 2009-05-27 | 中山火炬职业技术学院 | Control technique of cm segment microwave sensor |
| CN102771055A (en) * | 2010-02-17 | 2012-11-07 | 萨博公司 | Wideband transmitter/receiver arrangement for multifunctional radar and communication |
| CN201732163U (en) * | 2010-05-28 | 2011-02-02 | 四川海讯电子开发有限公司 | Anti-collision warning radar of automobile |
| CN102445696A (en) * | 2011-09-14 | 2012-05-09 | 李飞宇 | Human body detection device of intelligent toilet |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110088643A (en) * | 2018-08-31 | 2019-08-02 | 深圳迈睿智能科技有限公司 | There are detection methods there are detector and its human body for human body |
| CN110088643B (en) * | 2018-08-31 | 2021-12-07 | 深圳迈睿智能科技有限公司 | Human presence detector and human presence detection method |
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Application publication date: 20180316 |
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